A long history of research has revealed many neurophysiological changes and concomitant behavioral impacts of sleep deprivation, sleep restriction, and circadian rhythms. Little research, however, has been conducted in the area of computational cognitive modeling to understand the information processing mechanisms through which neurobehavioral factors operate to produce degradations in human performance. Our approach to understanding this relationship is to link predictions of overall cognitive functioning, or alertness, from existing biomathematical models to information processing parameters in a cognitive architecture, leveraging (...) the strengths from each to develop a more comprehensive explanation. The integration of these methodologies is used to account for changes in human performance on a sustained attention task across 88 h of total sleep deprivation. The integrated model captures changes due to time awake and circadian rhythms, and it also provides an account for underlying changes in the cognitive processes that give rise to those effects. The results show the potential for developing mechanistic accounts of how fatigue impacts cognition, and they illustrate the increased explanatory power that is possible by combining theoretical insights from multiple methodologies. (shrink)

We investigated the properties of the sustained attention to response task . In the SART, participants respond to frequent neutral signals and are required to withhold response to rare critical signals. We examined whether SART performance shows characteristics of speed–accuracy tradeoffs and in addition, we examined whether SART performance is influenced by prior exposure to emotional picture stimuli. Thirty-six participants in this study performed SARTs after being exposed to neutral and negative picture stimuli. Performance in the SART changed (...) rapidly over time and there was a high correlation between participants errors of commission rate and their reaction time to the neutral targets . Regardless of exposure self-reported thoughts significantly correlated with both errors of commission and reaction times. Overall, the results support the view that the SART is a better measure of impulsive responding than sustained attention. (shrink)

Three experiments investigated the relationship between subjective experience and attentional lapses during sustained attention. These experiments employed two measures of subjective experience to examine how differences in awareness correspond to variations in both task performance and psycho-physiological measures . This series of experiments examine these phenomena during the Sustained Attention to Response Task . The results suggest we can dissociate between two components of subjective experience during sustained attention: task unrelated thought which corresponds to (...) an absent minded disengagement from the task and a pre-occupation with one's task performance that seems to be best conceptualised as a strategic attempt to deploy attentional resources in response to a perception of environmental demands which exceed ones ability to perform the task. The implications of these findings for our understanding of how awareness is maintained on task relevant material during periods of sustained attention are discussed. (shrink)

ObjectiveTo assess distracted attention and performance on a computer task following completion of a sustained attention and acute media multitasking task among adolescents with varying self-reported usual media multitasking.MethodsNinety-six 13- to 17-year-olds played the video game Tetris following completion of a Go/No-go paradigm to measure sustained attention in the presence of distractors, an acute media multitasking, or a passive viewing condition. Adolescents completed the conditions on separate visits in randomized order. Sustained attention was (...) measured within the Go/No-go task by measuring errors of omission. Distracted attention while playing the Tetris task was measured by computing eye tracking measures of attention to irrelevant distractor images that bordered the Tetris game. Participants also self-reported their daily media multitasking.ResultsThe Go/No-go task revealed important qualitative differences in sustained attention among low and high usual media multitaskers. There was a uniform improvement in sustained attention among low usual media multitaskers, demonstrated by a consistent linear decrease in omission errors. Among high usual media multitaskers, there was initially a decrease in sustained attention followed by an increase. Completing the Go/No-go task also statistically significantly reduced distractibility and increased performance while playing Tetris compared to the passive viewing condition, but only among those with low usual media multitasking. There was a non-statistically significant trend that completing the acute media multitask increased subsequent distractibility and performance while playing Tetris among high media multitaskers.ConclusionIn this sample of adolescents, practicing a sustained attention task reduces distractibility and improves task performance among those who have low levels of usual media multitasking. (shrink)

The Sustained Attention to Response Task is a Go–No-Go signal detection task developed to measure lapses of sustained conscious attention. In this study, we examined the impact global interference and spatial uncertainty has on SART performance. Ten participants performed either a SART or a traditionally formatted version of a global–local stimuli detection task with spatially certain and uncertain signals. Reaction time in the SART was insensitive to global interference and spatial uncertainty, whereas reaction time in the (...) low-Go task was sensitive. Spatial uncertainty increased errors of omission in the SART, which was not expected if the SART measures mindlessness. There was a high correlation between participants’ errors of commission rate and their reaction time in the SART. The results, overall, support the view that the SART is a better measure of response strategy than lapses in sustained attention or mindlessness. (shrink)

Three experiments investigated the relationship between subjective experience and attentional lapses during sustained attention. These experiments employed two measures of subjective experience to examine how differences in awareness correspond to variations in both task performance and psycho-physiological measures . This series of experiments examine these phenomena during the Sustained Attention to Response Task . The results suggest we can dissociate between two components of subjective experience during sustained attention: task unrelated thought which corresponds to (...) an absent minded disengagement from the task and a pre-occupation with one's task performance that seems to be best conceptualised as a strategic attempt to deploy attentional resources in response to a perception of environmental demands which exceed ones ability to perform the task. The implications of these findings for our understanding of how awareness is maintained on task relevant material during periods of sustained attention are discussed. (shrink)

An experiment investigated the relationship between the ability to encode verbal stimuli during an attentional lapse. The task employed a variation on the sustained attention to response task which involved the detection of an infrequent target against a background of words. As a manipulation, participants were either instructed to encode the stimuli or were merely exposed to the stimuli. Retrieval was measured using process dissociation. Irrespective of the instructions given to the participants during the task, participants were more (...) likely to retrieve information on the basis of recollection after an error was made than before, whilst the likelihood of retrieving information on the basis of familiarity remained invariant over the same period. The implications of this result for methods of investigating subjective experience are discussed. (shrink)

We conducted two experiments using naturalistic scene stimuli to test the resource theory and mindlessness theory of sustained attention. In experiment 1, 28 participants completed a traditional formatted vigilance task consisting of non-repeating forest or urban picture stimuli as target stimuli. Participants filled out pre- and post-task assessments of arousal and conscious thoughts. There was still a vigilance decrement, despite non-repetitive, natural target stimuli. Participants found the task demanding and were actively engaged in the task. In experiment 2, (...) 25 participants completed a Sustained Attention to Response Task using the stimuli from experiment 1. Participants performed significantly worse on this SART than either brain injury patients or controls performing equivalent numeric stimuli SARTs have in previous studies. Participants thought the task was demanding and they were actively engaged with the task. Overall, the results of both studies support a resource theory of sustained attention lapses, not a mindlessness theory. (shrink)

Natural fluctuations in sustained attention can lead to attentional failures in everyday tasks and even dangerous incidences. These fluctuations depend on personal factors, as well as task characteristics. So far, our understanding of sustained attention is partly due to the common usage of laboratory setups and tasks, and the complex interplay between behavior and brain activity. The focus of the current study was thus to test the feasibility of applying a single-channel wireless EEG to monitor patterns (...) of sustained attention during a set of ecological tasks. An EEG marker of attention (BEI—Brain Engagement Index) was continuously recorded from 42 healthy volunteers during auditory and visual tasks from the Test of Everyday Attention (TEA) and Trail Making Test (TMT). We found a descending pattern of both performance and BEI in the auditory tasks as task complexity increases, while the increase in performance and decrease in BEI on the visual task. In addition, patterns of BEI in the complex tasks were used to detect outliers and the optimal range of attention through exploratory models. The current study supports the feasibility of combined electrophysiological and neurocognitive investigation of sustained attention in ecological tasks yielding unique insights on patterns of sustained attention as a function of task modality and task complexity. (shrink)

There are growing concerns that increased screen device usage may have a detrimental impact on classroom behaviour and attentional focus. The consequences of screen use on child cognitive functioning have been relatively under-studied, and results remain largely inconsistent. Screen usage may displace the time usually spent asleep. The aim of this study was to examine associations between screen use, behavioural inattention and sustained attention control, and the potential modifying role of sleep. The relations between screen use, behavioural inattention, (...) sustained attention and sleep were investigated in 162 6- to 8-year-old children, using parent-reported daily screen use, the SWAN ADHD behaviour rating scale, The sustained attention to response task and the children’s sleep habits questionnaire. Tablet use was associated with better sustained attention performance but was not associated with classroom behavioural inattention. Shorter sleep duration was associated with poorer behavioural inattention and sustained attention. Sleep quality and duration did not act as mediators between screen usage and behavioural inattention nor sustained attention control. These findings suggest that careful management of the amount of time spent on electronic screen devices could have a beneficial cognitive impact on young children. The results also highlight the critical role of sleep in enhancing both behavioural attention and sustained attention, which are essential for supporting cognitive development and learning. (shrink)

This study aimed to investigate the common predictive factors between social media addiction and eating disorder symptoms, in a group of Chinese female college students. A total of 216 students completed the behavioral assessments of cognitive flexibility and sustained attention, as well as the questionnaires on anxiety, social media dependence, and eating disorders. The results indicate that SMA is significantly correlated with EDS. Structural equation modeling was used to test the model in which state anxiety, cognitive flexibility, and (...) sustained attention predicted social gain and EDS. Additionally, the results confirmed the mediating role of cognitive flexibility and sustained attention between state anxiety and SMA/EDS in the participants. The findings revealed that in the sample group, state anxiety was related to SMA and EDS through cognitive flexibility and sustained attention. These proposals reflect the significance of improving cognitive flexibility/sustained attention and reducing state anxiety to prevent EDS and SMA in female college students. (shrink)

Research on sleep loss and vigilance both focus on declines in cognitive performance, but theoretical accounts have developed largely in parallel in these two areas. In addition, computational instantiations of theoretical accounts are rare. The current work uses computational modeling to explore whether the same mechanisms can account for the effects of both sleep loss and time on task on performance. A classic task used in the sleep deprivation literature, the Psychomotor Vigilance Test, was extended from the typical 10-min duration (...) to 35 min, to make the task similar in duration to traditional vigilance tasks. A computational cognitive model demonstrated that the effects of time on task in the PVT were equivalent to those observed with sleep loss. Subsequently, the same mechanisms were applied to a more traditional vigilance task—the Mackworth Clock Task—providing a good fit to existing data. This supports the hypothesis that these different types of fatigue may produce functionally equivalent declines in performance. (shrink)

This study investigated acute effects of real and imagined endurance exercise on sustained attention performance in healthy young adults in order to shed light on the action mechanisms underlying changes in cognitive functioning. The neural similarities between both imagined and physically performed movements reveal that imagery induces transient hypofrontality, whereas real exercise reflects both transient hypofrontality effects and the global release of signaling factors due to muscle contraction and the accompanying sensory feedback. We hypothesized improved cognitive functioning after (...) both interventions with greater improvements for real exercise because it targets both mechanisms. Fifty-three sport science students completed two 25-min sessions of moderate endurance exercise in either a motor imagery modality or an executed bodily activity within the framework of an order-balanced crossover study. Assessments for sustained attention performance were performed before and after each endurance exercise condition. Statistical results showed improvements for both groups over time, which can mostly be explained by retest effects. However, we observed a significant interaction effect between group and time, F = 3.64, p = 0.04, η2 = 0.07, with higher increases in the first session in case physical endurance exercise was performed compared to motor imagery exercise, t = −2.71, p = 0.09, d = 0.75. This might suggest that the release of signaling factors due to muscle contractions with sensory feedback processing is an additional mediating mechanism alongside motor-related transient hypofrontality that improves cognitive performance. (shrink)

This paper explores how the phenomenon of Joint Attention (JA) drives certain core features of team sport and how sport illuminates the nature of JA. In JA, two or more agents focus on the same object in mutual awareness that the content of their experience is thus shared. JA is essential to joint sporting actions. The sporting context is particularly useful for illustrating the phenomenon of JA and provides a valuable lens through which to examine rival theoretical accounts of (...) its workings. This paper draws novel connections between the respective philosophical literatures on JA and sport, suggesting prospects for mutually advantageous cross-pollination. I contend that the workings of JA within joint sporting action are misconstrued on intellectualistic and individualistic theories which posit reductive explanations in terms of the contents of individual minds. The best evidence and strongest philosophical arguments support ‘relational’ accounts whereby joint sporting actions exceed the sum of their parts. I reject the ‘extensionalist’ contention, associated with ‘lean’ versions of the relationalist approach, that objects of JA are individuated in terms of causal properties not sensitive to how they are perceived. Siding instead with ‘rich’ versions of the view, I argue that team collaboration depends on convergence in terms of the ‘aspectual shape’ of the objects of JA. Finally, a further possible application for these ideas is suggested: that JA plays a central role in the constitution of sport-specific kinds. On this proposal, JA facilitates collective perceptual recognition of particular objects and situations as embodying the general types described in the rulebook, playing an important role in creating and sustaining the public ‘social space’ of sporting competition. (shrink)

Achieving sustainability as a firm outcome is increasingly a concern for CEOs. Attention breadth (executive attention where attention is focused on a variety of areas simultaneously) is an important capability for CEOs to have in order to achieve sustainability performance at the firm level, as sustainability requires attending to multiple areas simultaneously including environmental, social, and governance dimensions as well as financial performance. To further explicate the development of attention breadth, I explore the two socio-cognitive antecedents (...) of attention breadth—career experience and social ties. Additionally, I examine the impact of CEO attention breadth on sustainability performance. A content analysis of letters to shareholders from a sample of Fortune 500 firms together with other archival data show an indirect influence of career experience and social ties on sustainability performance through the mediator of attention breadth. In particular, the number of social ties is shown to have more influence than career experience in determining the level of attention breadth, which I argue and show, ultimately leads to improved sustainability performance represented by a broader and more complex set of firm outcomes. The findings shed light on the antecedents of sustainability performance and expand the understanding of executive attention. (shrink)

As contemporary socio-ecological challenges such as climate change and biodiversity preservation have become more important, the three pillars concept has increasingly been used in planning and policy circles as a framework for analysis and action. However, the issue of how culture influences sustainability is still an underexplored theme. Understanding how culture can act as a resource to promote sustainability, rather than a barrier, is the key to the development of cultural sustainability. This book explores the interfaces between nature and culture (...) through the perspective of cultural sustainability. A cultural perspective on environmental sustainability enables a renewal of sustainability discourse and practices across rural and urban landscapes, natural and cultural systems, stressing heterogeneity and complexity. The book focuses on the nature-culture interface conceptualised as a place where experiences, practices, policies, ideas and knowledge meet, are negotiated, discussed and resolved. Rather than looking for lost unities, or an imaginary view of harmonious relationships between humans and nature based in the past, it explores cases of interfaces that are context-sensitive and which consciously convey the problems of scale and time. While calling attention to a cultural or 'culturalised' view of the sustainability debate, this book questions the radical nature-culture dualism dominating positive modern thinking as well as its underlying view of nature as pre-given and independent from human life. (shrink)

Improving corporate governance, business sustainability, and accountability for business organizations appears to be a global trend. Society is holding public companies responsible and accountable for their business activities and their financial reporting process. The public, regulators, accounting profession, and academic community are also taking a closer look at colleges and universities to find ways to hold these institutions more accountable for achieving their mission of providing higher education with relevant curriculum. Three areas that have recently received long-awaited attention are (...) business sustainability, professional ethics, and corporate governance. Business schools play an important and everlasting role in preparing the next generation of business leaders who possess life-long education and training of acting with integrity and upholding the highest level of ethical conduct and the heavy burden of public trust. These next generations of business leaders must understand the importance of ethical conduct, business sustainability and corporate governance corporations to our society and the complexity of financial reporting. Thus, business curriculum must reflect promotion of ethical behavior, professional accountability, and personal integrity taught to business students. Corporate governance, business sustainability, ethics including accountability, integrity, and transparency must be integrated throughout the business curriculum. The book is organized into three modules. Module I presents business sustainability, its importance, five dimensions of business sustainability performance including economic, governance, social, ethics and environmental (EGSEE), sustainability reporting and assurance and sustainability research and education. Module II provides the emergence of corporate governance, a framework for discussion of important functions of corporate governance including oversight, managerial, compliance, advisory, auditing, and monitoring as well as and integrating corporate governance into accounting research and business curricula. Module III discusses the importance of business and professional ethics, workplace ethics and trends in ethics research and education. (shrink)

This book explores the growing attention that sociology has started to give to environmental issues in terms of peace and social justice. With a focus on sociological theory and its development, it reconstructs the long journey made by the social sciences towards the reconstruction, in a single theoretical paradigm, of the problems associated with the implementation of conditions of peace and sustainability. Beginning from the premise that environmental issues are never purely environmental, but entail political, economic and social implications, (...) Sustainable Development and Peace offers an understanding of where we are heading, and how, reflecting on present challenges and possible directions for the future. It will therefore appeal to scholars of sociology, social theory, development studies, politics and environmental studies. (shrink)

This paper defends and develops the structuring account of conscious attention: attention is the conscious mental process of structuring one’s stream of consciousness so that some parts of it are more central than others. In the first part of the paper, I motivate the structuring account. Drawing on a variety of resources I argue that the phenomenology of attention cannot be fully captured in terms of how the world appears to the subject, as well as against an (...) atomistic conception of attention. In the second part of the paper, I show how the structuring account can be made precise: attention causes and causally sustains phenomenal relations to hold between the parts of the stream of consciousness; most importantly the relation of one part being peripheral to another. I end by pointing out consequences for both the scientific study of attention as well as for several areas of central philosophical interest. (shrink)