The present study aimed to analyze the stability of the memory of a stressful event (medical examination within a hospital setting) over time in young people (age range 12 to 21, Mage = 15.11 years old, SD = 3.047) with mild or moderate intellectual disability (IQ = 54.32, SD = 13.47). The results show a stability of the memory of what happened an hour and a week after the event in relation to the people involved, the apparatus used, (...) and the parts of the body explored. No interaction effects were found between the stability of memory over time and the level of intellectual disability. The level of disability (mild or moderate) only affected the description of the doctor who performed the exploration and the explored parts of the body, showing better results for people with mild disability. In addition, the results highlight the relationship between memory and IQ, especially verbal IQ. (shrink)

This book studies the technognomies of memory in scripto as in texts, lists, dictionaries and databases and less the technognomies of memory in vivo (as in remembering). There are of course some relations between these two kinds of memories, being memory-in-scripto a development parallel to the development of written language. We notice that the historical presentation is built upon both forms of memory. We notice that the historical explanation is tied to the concrete experience of persons belonging to a (...) culture. In the history of memory then, it is necessary to distinguish two important aspects, the development of spoken memory and the development of written memory. The essential characteristic of written memory is its muteness. Muteness is also associated to spatiality and to stability. On the other hand, audial presentations are inseparable of the notions of movement and time passing. According to Don Ihde the spheres of the invisible and the silent, limit the spheres of the visual and the audial. These two spheres overlap partially in visual presentations that also are audial presentations; however, their natural being is to be independent from each other. [Ihde, Don. Listening and Voice. Phenomenologies of Sound; State University Press; 2007; p. 50-51.] In our time, which is also the time of the globalization and digitalization of culture, a new philosophical paradigm is going on characterized by the fragmentation of experience. This fragmentation does not allow an overview of the totality of a field of experience, which is only possible to reduce to singular analytical moments. The fragmentation of experience is the result of a new jump of the capability to concretion. Inside this new paradigm, the world becomes multistable. The multistability of the world creates a gap between intention and implementation that distinguishes the “full” history as Natural history from the “broken” history as Cultural history. (shrink)

The notion of culture implies the relative stability of sets of algorithms that become entrenched in human brains as children become socialized, and, to a lesser extent, when immigrants become assimilated into a new society. The semiotics of culture has used the notion of signs and systems of signs to conceptualize this process, which takes for granted memory as a natural affordance of the brain without raising the question of how and why cultural signs impact behaviour in a durable (...) manner. Indeed, under the influence of structuralism, the semiotics of culture has mostly achieved synchronic descriptions. Dynamic models have been proposed to account for the action of signs (e.g., semiosis, dialogism, dialectic) and their resulting cultural changes and cultural diversity. However, these models have remained remarkably abstract, and somewhat disconnected from the actual brain processes, which must be assumed to be involved in the emergence, maintenance, and transformations of cultures. Semiotic terminology has contributed to a systematic representation of cultural objects and processes but thephilosophical origin of its basic concepts has made it difficult to construct a productive interface with the cognitive neurosciences as they have developed and achieved notable advances in the understanding of memory over the last few decades. The purpose of this paper is to suggest that further advances in semiotics will require a shift from philosophical and linguistic notions toward biological and evolutionary models. (shrink)

The Hard Question of memory is the following: how are memory representations stored and organized so as to be made available for retrieval in the appropriate circumstances and format? In this essay, I argue that philosophical theories of memory should engage with the Hard Question directly and seriously. I propose that declarative memory is a faculty performing a kind of cognitive triage: management of information for a variety of uses under significant computational constraints. In such triage, memory representations are preferentially (...) selected and stabilized, but also systematically modified and integrated into generalized, model-like representational structures. Further, I propose a hybrid theory of remembering, which takes into account both the nature of the cognitive processes underlying remembering and the norms that govern representational success in relevant cognitive/epistemic contexts. (shrink)

In her 1999 article ‘The Scent of Memory’, Avtar Brah maps the ways in which gendered, classed and racialised identities and subjectivities are produced in the diaspora space of Britain. ‘The Scent of Memory’ begins, repeatedly returns to and ends with the figure of a mother — Jean, a white English woman in the Southall of the 1970s and 1980s. One way of reading this article is as a series of interruptions, each of which allows us to see Jean differently, (...) to replace her in what Brah has memorably termed the entanglement of genealogies of dispersion with those of staying put. In this article, I stage my own set of speculative interruptions, through which recent feminist theorising of maternal subjectivities confronts the ways in which the maternal and the reproductive are conceptualised, metaphorised and mobilised in contemporary accounts of community cohesion, Britishness and belonging. At stake is our ability to challenge those still-dominant discourses that naturalise repetition and sameness as the necessary ground of belonging, obscuring and ignoring the gendered, racialised and other differences that mark Britishness, and which thereby reproduce the migrant and the minoritised as a problem for the stability of British identities. Following on from and extending Lisa Baraitser's claim that thinking about the relationship with the other ‘might just as well start with the mother’, I ask whether rethinking the reproductive can enable a more complex account of the ways in which ‘the native’ is transformed in diaspora spaces. (shrink)

Research in the neurosciences continues to provide evidence that sleep plays a role in the processes of learning and memory. There is less of a consensus, however, regarding the precise stages of memory development during which sleep is considered a requirement, simply favorable, or not important. This article begins with an overview of recent studies regarding sleep and learning, predominantly in the procedural memory domain, and is measured against our current understanding of the mechanisms that govern memory formation. Based on (...) these considerations, I offer a new neurocognitive framework of procedural learning, consisting first of acquisition, followed by two specific stages of consolidation, one involving a process of stabilization, the other involving enhancement, whereby delayed learning occurs. Psychophysiological evidence indicates that initial acquisition does not rely fundamentally on sleep. This also appears to be true for the stabilization phase of consolidation, with durable representations, resistant to interference, clearly developing in a successful manner during time awake (or just time, per se). In contrast, the consolidation stage, resulting in additional/enhanced learning in the absence of further rehearsal, does appear to rely on the process of sleep, with evidence for specific sleep-stage dependencies across the procedural domain. Evaluations at a molecular, cellular, and systems level currently offer several sleep specific candidates that could play a role in sleep-dependent learning. These include the upregulation of select plasticity-associated genes, increased protein synthesis, changes in neurotransmitter concentration, and specific electrical events in neuronal networks that modulate synaptic potentiation. Key Words: consolidation; enhancement; learning; memory; plasticity; sleep; stabilization. (shrink)

During each school semester, students face an onslaught of material to be learned. Students work hard to achieve initial mastery of the material, but when they move on, the newly learned facts, concepts, and skills degrade in memory. Although both students and educators appreciate that review can help stabilize learning, time constraints result in a trade-off between acquiring new knowledge and preserving old knowledge. To use time efficiently, when should review take place? Experimental studies have shown benefits to long-term retention (...) with spaced study, but little practical advice is available to students and educators about the optimal spacing of study. The dearth of advice is due to the challenge of conducting experimental studies of learning in educational settings, especially where material is introduced in blocks over the time frame of a semester. In this study, we turn to two established models of memory—ACT-R and MCM—to conduct simulation studies exploring the impact of study schedule on long-term retention. Based on the premise of a fixed time each week to review, converging evidence from the two models suggests that an optimal review schedule obtains significant benefits over haphazard (suboptimal) review schedules. Furthermore, we identify two scheduling heuristics that obtain near optimal review performance: (a) review the material from μ-weeks back, and (b) review material whose predicted memory strength is closest to a particular threshold. The former has implications for classroom instruction and the latter for the design of digital tutors. (shrink)

Heuristics of evolutionary biology dictate that phylogenetically older processes are inherently more stable and resilient to disruption than younger processes. On the grounds that non-declarative behaviour emerged long before declarative behaviour, Reber argues that implicit learning is supported by neural processes that are evolutionarily older than those supporting explicit learning. Reber suggested that implicit learning thus leads to performance that is more robust than explicit learning. Applying this evolutionary framework to motor performance, we examined whether implicit motor learning, relative to (...) explicit motor learning, conferred motor output that was resilient to physiological fatigue and durable over time. In Part One of the study a fatigued state was induced by a double Wingate Anaerobic test protocol. Fatigue had no affect on performance of participants in the implicit condition; whereas, performance of participants in the explicit condition deteriorated significantly. In Part Two of the study a convenience sample of participants was recalled following a one-year hiatus. In both the implicit and the explicit condition retention of performance was seen and, contrary to the findings in Part One, so was resilience to fatigue. The resilient performance in the explicit condition after one year may have resulted from forgetting or from consolidation of declarative knowledge as implicit memories. In either case, implicit processes were left to more effectively support motor performance. (shrink)

Seepage analysis is always a concern in dam safety and stability research. The prediction and analysis of seepage pressure monitoring data is an effective way to ensure the safety and stability of dam seepage. With the timeliness of a change in a monitoring value and lag due to external influences, a RS-LSTM model written in Python is developed in this paper which combines rough set theory and the long- and short-term memory network model. The model proposed calculates the (...) prediction score of the seepage pressure of a dam experiencing multiple effects by preordering factor importance values to eliminate the interference of redundant factors. A case study shows that the water level, rainfall, temperature, and duration are all factors that affect the seepage pressure, and their importance values decrease successively. Thus, the seepage pressure of a dam can be predicted with a determination coefficient R2 of 0.96. Compared with the recurrent neural network model and BP neural network model, the training time of the RS-LSTM model proposed is 6.37 s, and the operation efficiency is 41% and 59% higher than that of the RNN and BP models, respectively. The mean relative error is also 3.00%, which is 50% lower than that of the RNN model and 31% lower than that of the BP model. Based on these results, this model has the advantages of fast computation speed and high accuracy in prediction. (shrink)

A modified visual search task demonstrates that humans are very good at resuming a search after it has been momentarily interrupted. This is shown by exceptionally rapid response time to a display that reappears after a brief interruption, even when an entirely different visual display is seen during the interruption and two different visual searches are performed simultaneously. This rapid resumption depends on the stability of the visual scene and is not due to display or response anticipations. These results (...) are consistent with the existence of an iterative hypothesis-testing mechanism that compares information stored in short-term memory (the perceptual hypothesis) with information about the display (the sensory pattern). In this view, rapid resumption occurs because a hypothesis based on a previous glance of the scene can be tested very rapidly in a subsequent glance, given that the initial hypothesis-generation step has already been performed. (shrink)

We question memory reconsolidation and emotional arousal as sufficient determinants of therapeutic change. Generating new feelings and meanings must be contrasted with activating and stabilizing the evolving memories that reflect those novel experiences. Some therapeutic changes are not attributable to a memory model alone. “Emotional processing” is also needed and is often an undeclared form of complex executive problem solving.

Decades after Foucault’s Birth of the Clinic and History of Madness, the role of medicine in producing and sustaining classifications continues to be topical, as scholars have continued to critique normalizing judgments embedded in the practices of medicine, which stabilize identity categories within health care settings. A significant contributor to this area of scholarship, Ian Hacking has articulated a productive and extremely influential account of how certain “kinds” of people emerge hand-in-hand with the categories that are meant to classify them, (...) examining not only medical practices, but a wide range of governmental, scientific, and cultural institutions that contribute to kind-making. In this paper, I examine limitations to Hacking’s looping effects thesis, in an effort to further explore how kind-making may be embodied through intersections of subjectivity, social identity, and the practices of medicine. Employing a field study of HIV/AIDS care in Vancouver, Canada, I push at some of the boundaries of Hacking’s account, attempting to add complexity and nuance by bringing to bear considerations of memory, resistance, and embodiment on the process of looping. (shrink)

Typically, thalamic aphasias appear to be primarily lexical-semantic disorders representing difficulty using stored declarative memories for semantic information to access lexical word forms. Yet, there also is reason to believe that the thalamus might play a role in linguistic procedural memory. For more than two decades, we have known that basal ganglia dysfunction is associated with difficulties in procedural learning, and specific thalamic nuclei are the final waypoint back to the cortex in cortico-basal ganglia-cortical loops. Recent analyses of the (...) role of the thalamus in lexical-semantic processes and of the role of the basal ganglia in linguistic processes suggest that thalamic participation is not simply a matter of declarative vs. procedural memory, but a matter of how the thalamus participates in lexical-semantic processes and in linguistic procedural memory, as well as the interaction of these processes. One role for the thalamus in accessing lexical forms for semantic concepts relates to the stabilization of a very complex semantic-lexical interface with thousands of representations on both sides of the interface. Further, the possibility is discussed that the thalamus, through its participation in basal ganglia loops, participates in two linguistic procedural memory processes: syntactic/grammatical procedures and procedures for finding words to represent semantic concepts, with the latter interacting intricately with declarative memories. These concepts are discussed in detail along with complexities that can be addressed by future research. (shrink)

Several authors have argued that traumatic experiences are processed and remembered in a qualitatively different way from neutral events. To investigate this issue, we interviewed 121 Croatian war veterans diagnosed with posttraumatic stress disorder about amnesia, intrusions , and the sensory qualities of their most horrific war memories. Additionally, they completed a self-report scale measuring dissociative experiences. In contrast to what one would expect on the basis of theories emphasizing the special status of traumatic memories, amnesia, and high (...) frequency intrusions were not particularly typical for our sample of traumatized individuals. Moreover, traumatic memories were not qualitatively different from neutral memories with respect to their stability and sensory qualities. The severity of PTSD symptoms was not significantly correlated with dissociative experiences. Our findings do not support the existence of special memory mechanisms that are unique to experiencing traumatic events. (shrink)

The early development of autobiographical memory is a useful case study both for examining general relations between language and memory, and for investigating the promise and the difficulty of interdisciplinary research in the cognitive sciences of memory. An otherwise promising social-interactionist view of autobiographical memory development relies in part on an overly linguistic conception of mental representation. This paper applies an alternative, ‘supra-communicative’ view of the relation between language and thought, along the lines developed by Andy Clark, to this developmental (...) framework. A pluralist approach to current theories of autobiographical memory development is sketched: shared early narratives about the past function in part to stabilize and structure the child’s own autobiographical memory system. (shrink)

Walker proposes that procedural memory formation involves two specific stages of consolidation: wake-dependent stabilization, followed by sleep-dependent enhancement. If sleep-based enhancement of procedural memory formation is now well supported by evidence obtained at different levels of cognitive and neurophysiological organization, wake-dependent mechanisms for stabilization have not been demonstrated as convincingly, and still require more systematic characterization.

The last two decades have seen a rising interest in (a) the notion of a scientific phenomenon as distinct from theories and data, and (b) the intricacies of experimentally producing and stabilizing phenomena. This paper develops an analysis of the stabilization of phenomena that integrates two aspects that have largely been treated separately in the literature: one concerns the skills required for empirical work; the other concerns the strategies by which claims about phenomena are validated. I argue that in order (...) to make sense of the process of stabilization, we need to distinguish between two types of phenomena: phenomena as patterns in the data ( surface regularities ) and phenomena as underlying (or hidden ) regularities. I show that the epistemic relationships that data bear to each of these types of phenomena are different: Data patterns are instantiated by individual data, whereas underlying regularities are indicated by individual data, insofar as they instantiate a data pattern. Drawing on an example from memory research, I argue that neither of these two kinds of phenomenon can be stabilized in isolation. I conclude that what is stabilized when phenomena are stabilized is the fit between surface regularities and hidden regularities. (shrink)

The progressive multistage stabilization of memory (consolidation) relies on post-acquisition neural reorganization. We hypothesize that two processes subserve procedural memory consolidation and are reflected in delayed post-acquisition performance gains: (1) synaptic consolidation, which is classical Hebbian, and (2) in some tasks, concurrently or consequently, “system consolidation,” which might in some skills be sleep-dependent. Behavioral interference may affect either type of consolidation.

This article examines the nutritional and cultural meaning underlying the list of foods mentioned in the claims of the Israelites in Numbers 11:4–6. The foods eaten by the Israelites in Egypt express stability and a familiar routine, whilst the foods of Eretz Israel, although depicted as choicer, express uncertainty. The list of foods has a literary role on several spheres: (1) The foods are elements distinguishing the agricultural practices in Eretz Israel and Egypt. (2) Fish and vegetables are an (...) indicator of the low class of the Israelites – eating fish reflects the practice of obtaining protein from small animals available to the poor. In Egypt, vegetables were more readily available and were a more prominent ingredient in the diet of the poor and slaves. (3) The food is an indicator of the Egyptian cultural identity of the Israelites – the Bible identifies the longing for the fish and vegetables characteristic of their Egyptian diet as a sign of the Israelites’ cultural and mental affiliation with Egypt. Although they left Egypt physically, they remained affiliated with Egyptian culture and identity. Contribution: This article contributes to the understanding of the biblical story of the ‘desirers’ (Nm 11:4–6) from a multidisplinary perspective. It combines the fields of ancient Egyptian agriculture, nutrition, culture and research on features of immigrants’ foods. (shrink)

How linguistic structures evolve so as to become easier to process is addressed by Isbilen and Christiansen for the Now‐or‐Never bottleneck. The authors suggest that this fundamental challenge in language processing is coped with by rapid compression of the transient linguistic input into chunks then to be passed on. As linguistic structures that can be chunked more easily tend to stabilize and proliferate, language evolves to fit learners’ cognitive capabilities.

Associative learning is an essential feature of human cognition, accounting for the influence of priming and interference effects on memory recall. Here, we extend our account of associative learning that learns asymmetric item-to-item associations over time via experience by including link maturation to balance associations between longer-term stability while still accounting for short-term variability. This account, combined with an existing account of activation strengthening and decay, predicts both human response times and error rates for the fan effect for both (...) target and foil stimuli. (shrink)

Drawing on ideas from philosophy (in particular, epistemology), I argue that one of memory’s most important functions is to provide its owner with knowledge of the physical world. This knowledge helps satisfy the organism’s need to confer stability on an ever-changing reality so the objects in which it consists can be identified and reidentified. I then draw a distinction between sources of knowledge (i.e., from physical vs. subjective reality) and argue—based on evolutionary principles—that because memory was designed by natural (...) selection to interface with the physical world, knowledge acquired via sensory/perceptual experiences should be better remembered than internally generated knowledge made available by introspection. A study conducted to test this hypothesis provides support. I conclude that a serious interdisciplinary approach to issues typically considered the purview of psychology best enables researchers to craft well-specified, theoretically based hypotheses that directly target functions of the mind. (shrink)

Is consolidation needed to account for retroactive interference in free recall? Interfering mental activity during the retention interval of a memory task impairs performance, in particular if the interference occurs in temporal proximity to the encoding of the to-be-remembered information. There are at least two rival theoretical accounts of this temporal gradient of retroactive interference. The cognitive neuroscience literature has suggested neural consolidation is a pivotal factor determining item recall. According to this account, interfering activity interrupts consolidation processes that would (...) otherwise stabilize the memory representations of TBR items post-encoding. Temporal distinctiveness theory, by contrast, proposes that the retrievability of items depends on their isolation in psychological time. According to this theory, information processed after the encoding of TBR material will reduce the temporal distinctiveness of the TBR information. To test between these accounts, implementations of consolidation were added to the SIMPLE model of memory and learning. We report data from two experiments utilizing a two-list free recall paradigm. Modeling results imply that SIMPLE was able to model the data and did not benefit from the addition of consolidation. It is concluded that the temporal gradient of retroactive interference cannot be taken as evidence for memory consolidation. (shrink)

At the time, Washington and its allies held the "strikingly unanimous view whatever the sins of the Iraqi leader, he offered the West and the region a better hope for his country's stability than did those who have suffered his repression," reported Alan Cowell in the New York Times.

Contemporary societies are awash in rumor. Truth claims may have an uncertain provenance, but we tend to incorporate them into our belief system, act upon them, and recall them through collective memory. The question becomes who, what, where and when do we trust. The analysis of rumor belongs to the sociology of action. This paper sketches a brief analysis of the intersection of trust and rumors through the concepts of plausibility, credibility, frequency, diffusion, boundaries, divisiveness and stability or rumor. (...) The role of the ‘cultures of judgment’ is also outlined. (shrink)

Through the analysis of emotional tendency in online public opinion, governments and enterprises can stabilize people’s emotion more effectively and maintain social stability. The problem studied in this paper is how to analyze the emotional tendency of online public opinion efficiently, and finally, this paper chooses deep learning algorithm to perform fast analysis of emotional tendency of online public opinion. This paper briefly introduced the structure of the basic model used for emotional tendency analysis of online public opinion and (...) the convolutional neural network model used for text emotion classification. Then, the CNN model was improved by long short-term memory. A simulation experiment was carried out on MATLAB for the improved text emotion classification model to verify the influence of activation function type on the improved model and the performance difference between the improved model and support vector machine and traditional CNN models. The results showed that the improved classification model that adopted the sigmoid activation function had higher accuracy and was less affected by language than the relu and tanh activation functions; the improved classification model had the highest accuracy, recall rate, and F-value in classifying emotional tendency of web texts, followed by the traditional CNN model and the SVM model. (shrink)

The currently leading cognitive theory of consciousness, Global Workspace Theory,1,2 postulates that the primary functions of consciousness include a global broadcast serving to recruit internal resources with which to deal with the current situation and to modulate several types of learning. In addition, conscious experiences present current conditions and problems to a "self" system, an executive interpreter that is identifiable with brain structures like the frontal lobes and precuneus.1Be it human, animal or artificial, an autonomous agent3 is said to be (...) functionally conscious if its control structure (mind) implements Global Workspace Theory and the LIDA Cognitive Cycle, which includes unconscious memory and control functions needed to integrate the conscious component of the system. We would therefore consider humans, many animals4 and even some virtual or robotic agents5,6 to be functionally conscious. Such entities may approach phenomenal consciousness, as found in human and other biological brains, as additional brain-like features are added.Here we argue that adding mechanisms to produce a stable, coherent perceptual field7 in a LIDA controlled mobile robot might provide a small but significant step toward phenomenal consciousness in machines.>8 We also propose that implementing several of the various notions of self in such a LIDA controlled robot may well prove another step toward phenomenal consciousness in machines. (shrink)

This theoretical article investigates the effects of media frames on individuals' judgments. In contrast to previous theorizing, we suggest that framing scholars should embrace both, on-line and memory-based judgment formation processes. Based on that premise, we propose a model that distinguishes between two phases of framing effects. Along the first phase, the media's framing contributes to the formation of an on-line or a memory-based judgment. The second phase describes six hypothetical routes for the stability or the change of these (...) judgments: maintenance, readjustment, crystallization, inoculation, persuasion, and attenuation. At the heart of our model, we try to extract predictors for each of those routes. Finally, the implications of the proposed model for future framing research are discussed. (shrink)

Temporal stability and change in neutral contexts can transform continuous experiences into distinct and memorable events. However, less is known about how shifting emotional states influence these memory processes, despite ample evidence that emotion impacts non-temporal aspects of memory. Here, we examined if emotional stimuli influence temporal memory for recent event sequences. Participants encoded lists of neutral images while listening to auditory tones. At regular intervals within each list, participants heard emotional positive, negative, or neutral sounds, which served as (...) “emotional event boundaries” that divided each sequence into discrete events. Temporal order memory was tested for neutral item pairs that either spanned an emotional sound or were encountered within the same auditory event. Encountering a highly arousing event boundary led to faster response times for items encoded within the next event. Critically, we found that highly arousing sounds had different effects on binding ongoing versus ensuing sequential representations in memory. Specifically, highly arousing sounds were significantly more likely to enhance temporal order memory for ensuing information compared to information that spanned those boundaries, especially for boundaries with negative valence. These findings suggest that within aversive emotional contexts, fluctuations in arousal help shape the temporal organisation of events in memory. (shrink)

Based on a nonlinear demand function and a market-clearing price, a cobweb model is introduced in this paper. A gradient mechanism that depends on the marginal profit is adopted to form the 1D discrete dynamic cobweb map. Analytical studies show that the map possesses four fixed points and only one attains the profit maximization. The stability/instability conditions for this fixed point are calculated and numerically studied. The numerical studies provide some insights about the cobweb map and confirm that this (...) fixed point can be destabilized due to period-doubling bifurcation. The second part of the paper discusses the memory factor on the stabilization of the map’s equilibrium point. A gradient mechanism that depends on the marginal profit in the past two time steps is adopted to incorporate memory in the model. Hence, a 2D discrete dynamic map is constructed. Through theoretical and numerical investigations, we show that the equilibrium point of the 2D map becomes unstable due to two types of bifurcations that are Neimark–Sacker and flip bifurcations. Furthermore, the influence of the speed of adjustment parameter on the map’s equilibrium is analyzed via numerical experiments. (shrink)

Case study: while on placement at a mental health day centre I was assigned to act as key-worker to Mr X, a working-class white man in his early 40s who has been diagnosed with several psychiatric disorders. Mr X also experiences poor physical health. Mr X has been diagnosed as ?having? obsessive compulsive disorder, major depressive disorder, anger management disorder, Tourette's syndrome and paranoia. He has also been diagnosed with fibromyalgia. For all these, he daily takes a powerful cocktail of (...) anti-depressants, mood-stabilizers, anti-psychotics and pain killers. From his file I noted that he had been discharged from the local community psychiatric team, so he no longer had regular and unproblematic access to either a psychiatrist or social worker. He had been receiving anger management therapy (AMT), but his attendance had been sporadic. Mr X had, he claimed, no real friends, or, as he put it, ?just mere acquaintances?. Mr X lives alone with his mother. Mr X was a new member at the day centre but had had a long career as a mental health service user (owing to his angry behaviours he had been ?asked to leave? his previous day centre). The stated and overt purpose of our relationship was to collaborate towards ameliorating his situation. This work more commonly consisted of offering emotional and practical support, but, when first assigned Mr X, I was told by my practice assessor that eventually I would be required to carry out a risk assessment of him. So, for the purposes of this essay, I will focus on the ethical problems and dilemmas I encountered in the progression leading towards, and the actual process of carrying out, an assessment of the supposed risk that Mr X may pose either to himself, others or both. (shrink)

Accurate solar irradiance prediction plays an important role in ensuring the security and stability of renewable energy systems. Solar irradiance modeling is usually a time-dependent dynamic model. As a new kind of recurrent neural network, echo state network shows excellent performance in the field of time series prediction. However, the memory length of classical ESN is fixed and finite, which makes it hard to map sufficient features of solar irradiance with long-range dependency. Therefore, a novel deep echo state network (...) with variable memory pattern is proposed in this brief. VMP-DESN consists of multiple connected reservoirs in series, and there exist different types of memory modes in VMP-DESN. To remember more input history information in the states, the time delay links are added in each reservoir and between every two reservoirs. The VMP-DESN is more flexible to deal with different input signals due to its variable memory modes in the reservoir states. Additionally, the effect of different memory patterns on the VMP-DESN performance is discussed in detail, including the antidisturbance ability, memory capacity, and prediction accuracy. Finally, the effectiveness of VMP-DESN is evaluated by predicting the real solar irradiance task. (shrink)

In the second half of the 20th century, Latin American poetry has had to deal with representing the phenomenon of forced disappearance in its various poetic productions. Some of those have incubated in the Central American civil wars, the dictatorial regimes of the Southern Cone and even in countries with supposed democratic stability such as Mexico and Colombia. Memorial de Ayotzinapa, by the Mexican poet Mario Bojórquez, and Carta de las mujeres de este país, by the Colombian poet and (...) activist Fredy Yezzed, experiment with the discursive forms of the long poem and the letter poem, respectively, to construct collective memories around a phenomenon that continues to take lives to this day. Bojórquez's text is concerned with constructing a testimony, apparently in situ, of the disappearance of the forty-three Mexican teacher trainees; Yezzed's work, for its part, refrains from referring to a specific event or place in order to provide a more complete testimony of the Colombian armed conflict, nearly seventy years old. The article analyzes the forms of the text, the subjects and their spaces of enunciation, as well as the memory strategies that are seen in both works. Thus, the testimonial status of poetry is confirmed, sometimes overshadowed by genres such as the novel and the short story. (shrink)

Way-finding (WF) is the ability to move around efficiently and find the way from a starting point to a destination. It is a component of spatial navigation, a coordinate and goal-directed movement of one’s self through the environment. In the present study, the relationship between WF tasks (route tracing and shortcut finding) and individual factors were explored with the hypothesis that WF tasks would be predicted by different types of cognitive, affective, motivational variables and personality factors. A group of 116 (...) university students (88 F.) was conducted along a route in a virtual environment and then asked first to trace the same route again, and then to find a shortcut between the start and end points. Several instruments assessing visuospatial working memory, mental rotation ability, self-efficacy, spatial anxiety, positive attitude to exploring, and personality traits were administered. The results showed that a latent spatial ability factor (measured with the visuospatial working memory and mental rotations tests) - controlled for gender - predicted route-tracing performance, while self-report measures of anxiety, efficacy, and pleasure in exploring, and some personality traits were more likely to predict shortcut-finding performance. We concluded that both personality and cognitive abilities affect WF performance, but differently, depending on the requirements of the task. (shrink)

The paper reviews the current situation regarding a new theory of brain dynamics put forward by the authors in an earlier publication. Motivation for the theory is discussed in terms of two issues: the long-standing problem of accounting for the stability and nonlocal properties of memory, and the experimental and theoretical evidence against the classical theory of brain action. It is shown that the new theory provides an explanation and a conceptually unifying framework for phenomena of brain action that (...) resist classical explanation. Further independent experiments provide strong additional support for the theory. The fact that this theory incorporates quantum mechanisms in an essential way is considered to be of wide scientific interest in view of the unique status of the brain in relation to the physical, biological, and mental orders in nature. (shrink)

McQueen and Vaidman argue that the Many Worlds Interpretation (MWI) of quantum mechanics provides local causal explanations of the outcomes of experiments in our experience that is due to the total effect of all the worlds together. We show that although the explanation is local in one world, it requires a causal influence that travels across different worlds. We further argue that in the MWI the local nature of our experience is not derivable from the Hilbert space structure, but has (...) to be added to it as an independent postulate. This is due to what we call the factorisation-symmetry and basis-symmetry of Hilbert space. (shrink)

This study investigates the procedural learning, retention, and reactivation of temporal sensorimotor sequences in children with and without developmental coordination disorder. Twenty typically-developing children and 12 children with DCD took part in this study. The children were required to tap on a keyboard, synchronizing with auditory or visual stimuli presented as an isochronous temporal sequence, and practice non-isochronous temporal sequences to memorize them. Immediate and delayed retention of the audio-motor and visuo-motor non-isochronous sequences were tested by removing auditory or visual (...) stimuli immediately after practice and after a delay of 2 h. A reactivation test involved reintroducing the auditory and visual stimuli after the delayed recall. Data were computed via circular analyses to obtain asynchrony, the stability of synchronization and errors. Firstly, an overall deficit in synchronization with both auditory and visual isochronous stimuli was observed in DCD children compared to TD children. During practice, further improvements were found for the audio-motor non-isochronous sequence compared to the visuo-motor non-isochronous sequence in both TD children and children with DCD. However, a drastic increase in errors occurred in children with DCD during immediate retention as soon as the auditory stimuli were removed. Reintroducing auditory stimuli decreased errors in the audio-motor sequence for children with DCD. Such changes were not seen for the visuo-motor non-isochronous sequence, which was equally learned, retained and reactivated in DCD and TD children. All these results suggest that TD children benefit from both auditory and visual stimuli to memorize the sequence, whereas children with DCD seem to present a deficit in integrating an audio-motor sequence in their memory. The immediate effect of reactivation suggests a specific dependency on auditory information in DCD. Contrary to the audio-motor sequence, the visuo-motor sequence was both learned and retained in children with DCD. This suggests that visual stimuli could be the best information for memorizing a temporal sequence in DCD. All these results are discussed in terms of a specific audio-motor coupling deficit in DCD. (shrink)

Throughout religious, scientific, and humanist literature on ideas one finds categorical subdivisions that are four in number: the four corners of the Earth, the four cardinal directions, the four proteins constituting DNA, Maxwell's four equations, Toynbee's four societies, Pythagoras’ four elements of arithmetic, Pythagoras’ four elements, Hayden White's four aspects of imagination. The list is endless. From where does the “four” come? Why not five, or six, eight, or nine? Andersen tracks back to the beginnings of arithmetic utilized in the (...) architecture of conceptual thinking. He finds the answer not only in the quadration of the human body as having four sides and giving a stabilizing structure to the brain but equally in the architecture of memory. Using the slot-theory of short-term memory processing, he demonstrates how easily the four-count comes to mind and how the brain resists moving on to five. (shrink)

Insights into the role of sleep in the molecular mechanisms of memory consolidation may come from studies of activity-dependent synaptic plasticity, such as long-term potentiation (LTP). This commentary posits a specific contribution of sleep to LTP stabilization, in which mRNA transported to dendrites during wakefulness is translated during sleep. Brain-derived neurotrophic factor may drive the translation of newly transported and resident mRNA.

The author considers the evolutionary approach to the development of the scientific knowledge in framework of the Niklas Luhmann's system-communicative theory and presents a thesis that in respect to the final evolutional state (state of stabilization of new form of knowledge) the organization of the Russian science has not yet achieved the world-level of sufficient autonomy because there was not yet been established the self-substitutive order of the knowledge accumulation which is inherent to the autopoiesis of the contemporary science i.e. (...) the process of continued change of some ones truths by some others. The factors impeding to establish such a self-substitutive order are to be connected by the author with the impact on the scientific discourse from some external communicative forms (the theological, financial, economical, political ones) and with the continuous change of some selective criterions that have to define what has to be accumulated as a memory of the science as a communicative system. (shrink)

Changes in synaptic strength are described as a unifying hypothesis for memory formation and storage, leading philosophers to consider the ‘synaptic efficacy hypothesis’ as a paradigmatic explanation in neuroscience. Craver’s mosaic view has been influential in understanding synaptic efficacy by presenting long-term potentiation as a multi-level mechanism nested within a multi-level structure. This paper argues that the mosaic view fails to fully capture the explanatory power of the synaptic efficacy hypothesis due to assumptions about multi-level mechanisms. I present an alternative (...) approach that emphasizes the explanatory function of unification, accounting for the widespread consensus in neuroscience regarding synaptic efficacy by highlighting the stability of synaptic causal variables across different multi-level mechanisms. (shrink)

Adorno's work “What does‘processing of the Рast’ mean” for the first time was presented as a report on November 6, 1959 before the Coordination Council on Christian-Jewish Cooperation. In this work Adorno considered the essence of social ideology prevailing in postwar Germany, which predetermined the strategies of social reconciliation with the political crimes of the former national-socialist power. According to the philosopher the social ideology of the consumer society uses a large number of appropriate means to stabilize its dominant position (...) in society. First of all this ideology tries to eliminate the collective historical memory of people about the horrors of the war period, trying to squeeze them out of the collective consciousness, in particular, through the memories of people about the “best times” of life under the “guardianship” of the previous totalitarian power. The philosopher marked as surrogate the identity of these people which socially integrated only through the authority of the power personality. They do not identify themselves with the victims of the totalitarian regime because of the influence on their consciousness of the cultural elements of this social ideology. Another consequence of this influence is the alienation of these people from the idea of democracy as a factor of properly sociocultural transformations. Adorno defined the new “democratic pedagogy” and the enlightenment as a “second education” as effective means to overcome this influence. They are practically implemented in a society as those educated people who have knowledge about the past crimes of the totalitarian regime. In this manner they cause within the educational process of the effective “re-education of the Past” through the formation of a personal understanding of an individual about social causes and the terrible consequences of rule of a totalitarian regime. This makes possible of his “political full-grown” and makes impossible of historic recurrence of the crimes of authoritarian power in Europe. (shrink)