Can we build endogenous expectations about the locus of occurrence of a target without being able to describe them? Participants performed cue–target detection tasks with different proportions of valid and invalid trials, without being informed of these proportions, and demonstrated typical endogenous effects. About half were subsequently able to correctly describe the cue–target relationships . However, even non-verbalizer participants showed endogenous orienting with peripheral cues , not depending solely on practice . Explicit instructions did not bring about dramatic advantages in (...) performance .With central symbolic cues, only verbalizers showed reliable endogenous effects . We concluded that endogenous orienting with peripheral cues can occur independently of participants developing explicit hypotheses about the cue–target relationships. (shrink)

BackgroundThe measures taken to contain the coronavirus disease 2019 pandemic, such as the lockdown in Italy, do impact psychological health; yet, less is known about their effect on cognitive functioning. The transactional theory of stress predicts reciprocal influences between perceived stress and cognitive performance. However, the effects of a period of stress due to social isolation on spatial cognition and exploration have been little examined. The aim of the present study was to investigate the possible effects and impact of the (...) COVID-19 pandemic on spatial cognition tasks, particularly those concerning spatial exploration, and the physiological leftward bias known as pseudoneglect. A right-hemisphere asymmetry for spatial attention processes crucially contributes to pseudoneglect. Other evidence indicates a predominantly right-hemisphere activity in stressful situations. We also analyzed the effects of lockdown on coping strategies, which typically show an opposite pattern of hemispheric asymmetry, favoring the left hemisphere. If so, then pseudoneglect should increase during the lockdown and be negatively correlated with the efficacy of coping strategies.MethodsOne week before the start of the lockdown due to COVID-19 in Italy, we had collected data from a battery of behavioral tests including tasks of peri-personal spatial cognition. During the quarantine period, from late April to early May 2020, we repeated the testing sessions with a subgroup of the same participants. At both testing sessions, participants performed digitized neuropsychological tests, including a Cancellation task, Radial Arm Maze task, and Raven’s Advanced Progressive Matrices. Participants also completed a newly developed COVID-19 Student Stress Scale, based on transactional models of stress, and the Coping Orientation to Problems Experienced—New Italian Version to assess coping orientation.ResultsThe tendency to start cancelation from a left-sided item, to explore first a left-sided arm of the maze, and to choose erroneous response items on the left side of the page on Raven’s matrices increased from T1 to T2. The degree of pseudoneglect increment positively correlated with perceived stress and negatively correlated with Positive Attitude and Problem-Solving COPE-NIV subscales.ConclusionLockdown-related stress may have contributed to increase leftward bias during quarantine through a greater activation of the right hemisphere. On the other hand, pseudoneglect was decreased for better coping participants, perhaps as a consequence of a more balanced hemispheric activity in these individuals. (shrink)

Unilateral neglect stems from a relatively selective impairment of exogenous, or stimulus-related, orienting of attention. This neuropsychological evidence parallels “change blindness” experiments, in which normal individuals lack awareness of salient details in the visual scene as a consequence of their attention being exogenously attracted by a competing event, suggesting that visual consciousness requires the integrity of exogenous orienting of attention.

In agreement with some of the ideas expressed by Perruchet & Vinter (P&V), we believe that some phenomena hitherto attributed to processing may in fact reflect a fundamental distinction between direct and reflexive forms of consciousness. This dichotomy, developed by the phenomenological tradition, is substantiated by examples coming from experimental psychology and lesion neuropsychology.

Right brain-damaged patients with unilateral neglect, who ignore left-sided visual events, may also omit left-sided details when describing known places from memory. Modulating the orienting of visual attention may ameliorate imaginal neglect. A first step toward explaining these phenomena might be to postulate that space-related imagery is a cognitive activity involving attentional and intentional aspects.

Current deep neural networks (DNNs) are far from being able to model the rich landscape of human visual experience. Beyond visual recognition, we explore the neural substrates of visual mental imagery and other visual experiences. Rather than shared visual representations, temporal dynamics and functional connectivity of the process are essential. Generative adversarial networks may drive future developments in simulating human visual experience.

The writings of the Italian philosophers Giovanni Vailati and Mario Calderoni, sometimes called logical pragmatists, are not well-known in the English-speaking countries. A recent revival of interest is due in part to the reflection in the works of these men of later developments in analytic and pragmatic philosophy. This bibliography has three parts; In Part I are listed English and French translations of some of Vailati's writings, and commentaries in English and French on his work. Part II indicates the extent (...) of Vailati's correspondence with scholars of his time, and lists reviews by Vailati of the works of his contemporaries. Part III is a list of his major writings in Italian, with English translations of the titles. (shrink)

Attention is often conceived as a gateway to consciousness . Although endogenous spatial attention may be independent of conscious perception , exogenous spatial orienting seems instead to be an important modulator of CP . Here, we investigate the role of auditory alerting in CP in normal observers. We used a behavioral task in which phasic alerting tones were presented either at unpredictable or at predictable time intervals prior to the occurrence of a near-threshold visual target. We find, for the first (...) time in neurologically intact observers, that phasic alertness increases CP, both objectively and subjectively. This result is consistent with evidence showing that phasic alerting can ameliorate the spatial bias exhibited by visual neglect patients . The alerting network may increase the activity of fronto-parietal networks involved in top-down amplification required to bring a stimulus into consciousness. (shrink)

We used several cue–target SOAs and three different degrees of cue predictability , to investigate the role of awareness of cue–target predictability on cueing effects. A group of participants received instructions about the informative value of the cue, while another group did not receive such instructions. Participants were able to extract the predictive value of a spatially peripheral cue and use it to orient attention, whether or not specific instructions about the predictive value of the cue were given, and no (...) matter their ability to correctly report it in a post-test questionnaire. In the non-predictive block, bad estimators who received no instructions showed regular cueing effects, while good estimators exhibited smaller and non-significant facilitatory effects at the short SOA and an absence of significant IOR at longer SOAs. However, for the instructions group, the pattern of results reversed. (shrink)

La biografia di Bartolomeo di San Concordio contenuta nella Chronica antiqua del Convento di Santa Caterina di Pisa presenta un modello esemplare di predicatore domenicano, i cui tratti sono lo stile di vita sobrio, la spiccata attitudine allo studio, la vasta produzione letteraria e l’abilità nella predicazione. Al di là degli stereotipi, applicabili a molti frati domenicani, la biografia lascia trasparire alcuni elementi che caratterizzano l’ambiente del convento pisano. In particolare, la metafora della ‘biblioteca vivente’ utilizzata per descrivere la (...) vasta cultura e la straordinaria memoria di Bartolomeo, segnala da una parte l’attenzione alle tecniche della memoria, particolarmente diffusa nell’ ambiente pisano, dall’altra l’instancabile attività di Bartolomeo come autore di compendi e di opere enciclopediche destinate ad una larghissima diffusione. Bartolomeo of St. Concordio’s biography, contained in the “Chronica antiqua” of the Convent of Santa Caterina of Pisa, gives a model of Dominican preacher, whose characteristics are a simple lifestyle, a strong attitude towards studying, a wide literary production and the preaching ability. Beyond these stereotypes, which can be found in many Dominicans, the biography reveals some elements that characterize the environment of the convent of Pisa. In particular, the metaphor of the 'living library', used to describe Bartolomeo’s broad culture and extraordinary memory, draws attention to the techniques of memory, particularly widespread in the environment of Pisa, and describes Bartolomeo’s tireless work in writing “summae” and encyclopaedic works for a large circulation. (shrink)

During the century following the Council of Trent, two trends within Catholic religious orders matured: the first consisted in unifying and strengthening the Order’s culture by focussing on one author of reference; the other in elaborating a new way of presenting that author’s doctrines. In the case of the Friars Minor Conventuals, these trends were fostered in the second decade of the seventeenth century by the minister general of the Order, Giacomo Montanari, who promoted the idea that providing the Order (...) with new works featuring innovative didactic characteristics and a renewed defence of the doctrines of John Duns Scotus was a prime way to lead an authentic religious life. Bartolomeo Mastri and Bonaventura Belluto’s “philosophiae cursus ad mentem Scoti” was probably the major result of this impulse. This essay examines the ways in which this process occurred and the outcomes to which it led. (shrink)

Bartolomeo Mastri’s Disputations on Metaphysics is the single most important work on metaphysics produced in the Scotist school during the Early Modern period. This contribution guides through the work by highlighting a selection of key passages that convey an impression of its historical-literary context, its subject matter, its main motifs and scientific aims, but also its limitations. Especially, we see Mastri emphasizing the theological aspect of theology, though he in the end refrains from exploring this aspect of metaphysics within (...) his work on metaphysics. I suggest that this discrepancy between Mastri’s concept of metaphysics and his work on metaphysics showcases the difficulty of organizing this discipline during the phase of transition from the traditional commentary format typical of medieval scholasticism to the Early Modern scholastic Cursus philosophicus literature. (shrink)

Con su Expositio in XII libros Metaphysicae Aristotelis Antonio Andrés ofrece una alternativa escotista a la obra homónima de Tomás de Aquino y trata de superarla. En esta obra Andrés refuta algunas interpretaciones del Aquinate. El objetivo del presente artículo consiste en analizar la respuesta de Bartolomeo Spina a las críticas de Andrés. Las Defensiones de Spina fueron publicadas en 1517 y posteriormente se integraron en los Commentaria in XII libros Metaphysicorum Aristotelis del Aquinate que Spina editó diversas veces.

Chica and Bartolemeo : The proportion valid effect in covert orienting: Strategic control or implicit learning? Consciousness and Cognition,19, 443–444.) agree that our results . The proportion valid effect in covert orienting: Strategic control or implicit learning? Consciousness and Cognition,19, 432–442.) are consistent with an implicit learning account of the proportion valid effect. Nevertheless, they raise two general issues that an explicit strategy might be operative in other contexts and that orienting in response to implicit knowledge is endogenous. In our (...) response, we address each of these issues and further discuss the concepts of endogenous orienting and cognitive control. (shrink)