The taxonomy proposed by Pessoa et al. should be extended to include “pathological” completion phenomena in patients with unilateral brain damage. Patients with visual field defects (hemianopias) may “complete” whole figures, while patients with parietal lobe damage may “complete” partial figures. We argue that the former may be consistent with the brain “filling-in” information, and the latter may be consistent with the brain ignoring the absence of information.

Mechanisms of selective attention are vital for coherent perception and action. Recent advances in cognitive neuroscience have yielded key insights into the relationship between neural mechanisms of attention and eye movements, and the role of frontal and parietal brain regions as sources of attentional control. Here we explore the growing contribution of reversible neurodisruption techniques, including transcranial magnetic stimulation and microelectrode stimulation, to the cognitive neuroscience of spatial attention. These approaches permit unique causal inferences concerning the relationship between neural processes (...) and behaviour, and have revealed fundamental mechanisms of attention in the human and animal brain. We conclude by suggesting that further advances in the neuroscience of attention will be facilitated by the combination of neurodisruption techniques with established neuroimaging methods. (shrink)

Mechanisms of selective attention exert a powerful influence on visual perception. We examined whether attentional selection is necessary for generation of the vivid colours experienced by individuals with grapheme-colour synaesthesia. Twelve synaesthetes and matched controls viewed rapid serial displays of nonsense characters within which were embedded an oriented grating (T1) and a letter-prime (T2), forming a modified attentional blink (AB) task. At the end of the stream a coloured probe appeared that was either congruent or incongruent with the synaesthetic colour (...) elicited by the letter-prime. When the prime was attended, synaesthetes showed a reliable effect of prime-probe congruency. In contrast, when the prime appeared at 350 ms following T1 (during the AB), the congruency effect was eliminated. Our findings suggest that focused attention is crucial for inducing letters to elicit colours in synaesthesia. © 2009 Elsevier B.V. All rights reserved. (shrink)

Mechanisms of attention play a crucial role in filtering sensory inputs from the external world, allowing information to be prioritised for goal directed behaviour. To what extent might these same capacity-limited processes influence grapheme-colour synaesthesia, in which letters, numbers or words evoke concurrent experiences of colour? Asking synaesthetes themselves whether attention seems important in their experiences has provided a range of answers. On the one hand, for some synaesthetes, diverting attention can diminish the quality of their synaesthetic colours. On the (...) other, there are suggestions that synaesthetic experiences can themselves alter the manner in which attention is allocated to sensory stimuli in the environment. Here, we review a range of empirical investigations that have examined the role of attention in grapheme-colour synaesthesia. A particular focus of these studies has been the extent to which an inducing stimulus - such as an achromatic letter or digit - must be attended or consciously perceived to trigger a concurrent synaesthetic experience. In most cases, limiting attention or masking inducers tends to reduce or eliminate behavioural evidence of synaesthetic experiences. We also discuss how synaesthesia might improve performance in visual search tasks through post-attentive processes such as grouping, or by facilitating decision-making processes. (shrink)

Adaptation to right-shifting prisms improves left neglect for mental number line bisection. This study examined whether adaptation affects the mental number line in normal participants. Thirty-six participants completed a mental number line task before and after adaptation to either: left-shifting prisms, right-shifting prisms or control spectacles that did not shift the visual scene. Participants viewed number triplets (e.g. 16, 36, 55) and determined whether the numerical distance was greater on the left or right side of the inner number. Participants demonstrated (...) a leftward bias (i.e. overestimated the length occupied by numbers located on the left side of the number line) that was consistent with the effect of pseudoneglect. The leftward bias was corrected by a short period of visuomotor adaptation to left-shifting prisms, but remained unaffected by adaptation to right-shifting prisms and control spectacles. The findings demonstrate that a simple visuomotor task alters the representation of space on the mental number line in normal participants. (shrink)

A period of exposure to trains of simultaneous but spatially offset auditory and visual stimuli can induce a temporary shift in the perception of sound location. This phenomenon, known as the 'ventriloquist aftereffect', reflects a realignment of auditory and visual spatial representations such that they approach perceptual alignment despite their physical spatial discordance. Such dynamic changes to sensory representations are likely to underlie the brain's ability to accommodate inter-sensory discordance produced by sensory errors (particularly in sound localization) and variability in (...) sensory transduction. It is currently unknown, however, whether these plastic changes induced by adaptation to spatially disparate inputs occurs automatically or whether they are dependent on selectively attending to the visual or auditory stimuli. Here, we demonstrate that robust auditory spatial aftereffects can be induced even in the presence of a competing visual stimulus. Importantly, we found that when attention is directed to the competing stimuli, the pattern of aftereffects is altered. These results indicate that attention can modulate the ventriloquist aftereffect. © 2010 Elsevier B.V. (shrink)

In the philosophy of perception, olfaction is the perennial problem child, presenting a range of difficulties to those seeking to define its proper referents, and its phenomenological content. Here, we argue that many of these difficulties can be resolved by recognizing the object-like representation of odors in the brain, and by postulating that the basic objects of olfaction are best defined by their biological value to the organism, rather than physico-chemical dimensions of stimuli. Building on this organism-centered account, we speculate (...) that the phenomenological space of olfaction is organized into a number of coarse affective dimensions that apply categorically. This organization may be especially useful for coupling sensation to decision-making and instrumental action in a sensory modality where the stimulus space is especially complex and high-dimensional. (shrink)

This article summarizes a National Institute of Mental Health workshop that was convened to address the ethical and methodological issues that arise when conducting controlled psychosocial interventions research and introduces 6 thoughtful and inspiring papers prepared by workshop participants. These papers, on topics ranging from informed consent to ethnic minority issues, reflect the depth and breadth of expertise represented by the multidisciplinary group of scientists and ethicists present at the meeting. More extensive follow-up, particularly from federal research applications and publications, (...) of how investigators balance the need for strong research design with ethical considerations may help advance the science of psychosocial intervention research. (shrink)

Antipoverty movements have generated many “little” or “near” basic income guarantee (BIG) proposals. Most theorists discussing BIG posit a full-fledged universal grant that entirely satisfies the core value guiding their theory. Debates are conducted about feasibility, desirability and rival values. This article looks into particular considerations that need to be made when debating a little BIG. If a “status” value, meaning “all or nothing,” is the core value under debate, then a grant falling short of securing this status will need (...) some other justification. If the core value is “scalar,” meaning there can be more or less of it, then a lower grant can be justified if it is an efficient way to add to that value. I offer two reasons that a little BIG can have merit: 1. Organizations will benefit because the grant provides a clear target for citizen action. 2. There are reasons to think that a BIG of whatever size will promote organizational capabilities more efficiently than money coming from an employer, family member or conditional public entitlement. (shrink)

To Vallortigara & Rogers's (V&R's) evidence of everyday directional asymmetries in the natural environment of a variety of species, we offer one more example for human beings. It is the bias for holding an infant on the left side, and it illustrates several themes in the target article.

First published in 2002. Routledge is an imprint of Taylor & Francis, an informa company.

This study investigates potential differences in attitudes towards corporate social responsibility between Saudis and Muslims from other predominately Islamic countries. We propose that Saudi Arabia’s unique rentier-state welfare and higher education systems account for these distinctions. In evaluating our propositions, we replicate Brammer et al. :229–243, 2007) survey on attitudes towards CSR using a sample of Saudi undergraduate and graduate business students and compare the results against data from subjects in other majority Muslim countries. In addition, this work examines possible (...) differences within the Saudi sample with respect to sex and academic level. Our results indicate that our Saudi subjects maintain higher expectations for corporations’ social responsibility within their supply chain than the Brammer et al.’s sample. In contrast, Muslims in the Brammer et al.’s sample hold higher expectations for corporations in supporting societal development and poverty alleviation in comparison to the Saudi sample. We also find within the Saudi sample that females and subjects at higher academic levels are more inclined to hold corporations responsible for social issues related to CSR than males and subjects in lower academic levels. We examine these findings, explore their implications, and propose areas for future research. (shrink)

Which systems/organisms are conscious? New tests for consciousness (‘C-tests’) are urgently needed. There is persisting uncertainty about when consciousness arises in human development, when it is lost due to neurological disorders and brain injury, and how it is distributed in nonhuman species. This need is amplified by recent and rapid developments in artificial intelligence (AI), neural organoids, and xenobot technology. Although a number of C-tests have been proposed in recent years, most are of limited use, and currently we have no (...) C-tests for many of the populations for which they are most critical. Here, we identify challenges facing any attempt to develop C-tests, propose a multidimensional classification of such tests, and identify strategies that might be used to validate them. (shrink)

Two recent films by Pulitzer Prize-winning playwright, David Mamet, can provide opportunities for observing student reactions to ethically troublesome situations and for discussing business-communication ethics in the classroom. The key question addressed in this article is whether business-communication courses, for example, those in public relations, can encourage students to make the "metaphoric leap" and apply Mamet's messages to class readings and discussions on ethical problems or challenges. Through showing two films in their entirety and conducting focus groups among upper-level undergraduates, (...) the authors find that there is instructional value in using Mamet's films to discuss ethics in business-related settings. (shrink)

The biophilia hypothesis posits an innate biological and genetic connection between human and nature, including an emotional dimension to this connection. Biophilic design builds on this hypothesis in an attempt to design human-nature connections into the built environment. This article builds on this theoretical framework through a meta-analysis of experimental studies on the emotional impacts of human exposure to natural and urban environments. A total of 49 studies were identified, with a combined sample size of 3,201 participants. The primary findings (...) indicated that exposure to natural environments had a medium to large effect on both increasing positive affect and decreasing negative affect. This finding supported the anticipated emotional dimension of the biophilia hypothesis and lends credibility to biophilic design theory. Evidence was revealed in support of the affective/arousal response model. Immersion in environments indicated a larger effect size than laboratory simulation of environments. Methodological recommendations for future experimental research were few, however the Positive and Negative Affect Schedule outcome measure was recommended as a measure of both positive and negative affect for further studies. A combination measurement of stress related outcome variables was proposed to further explore the affective/arousal response model and its potential relationship to the biophilia hypothesis. The meta-analysis provides evidence for fundamental theories regarding human-nature connection, while revealing gaps in current knowledge. (shrink)

RésuméLes analogies peuvent être des outils précieux d'argumentation lors-qu'elles sont bonnes, mais quand elles sont mauvaises, elles faussent inévitablement la question qu'elles sont censées élucider. Tel est le cas de la comparaison entre la sécession et le divorce, qu'il s'agisse du divorce sous conditions ou du divorce sans égard à la faute. L'objectif de cet article est de montrer que la sécession se distingue empiriquement d'un divorce par trois différences significatives: entre personnes et peuple, entre manage et union politique, et (...) entre divorce et sécession. Cela révèle que les deux versions de l'analogie du divorce sont inadéquates. Même si, cependant, ces écarts pouvaient être comblés et que l'analogie du divorce sous condition puisse être sauvée, je conteste le caractère approprie de l'autre version en montrant qu'aborder la sécession comme un divorce civil entraînerait des implications normatives contre-intuitives qui enlèveraient tout attrait à l'analogie du divorce sans égard à la faute, ou qui amèneraient ceux qui l'emploient à promouvoir des modifications irréalistes aux institutions légales internationales. (shrink)

Résumé: Les analogies peuvent être des outils précieux d’argumentation lors-qu’elles sont bonnes, mais quand elles sont mauvaises, elles faussent inévitablement la question qu’elles sont censées élucider. Tel est le cas de la comparaison entre la sécession et le divorce, qu’il s’agisse du divorce sous conditions ou du divorce sans égard à la faute. L’objectif de cet article est de montrer que la sécession se distingue empirique ment d’un divorce par trois différences significatives: entre personnes et peuple, entre mariage et union (...) politique, et entre divorce et sécession. Cela révèle que les deux versions de l’analogie du divorce sont inadéquates. Même si, cependant, ces écarts pou vaient être comblés et que l’analogie du divorce sous condition puisse être sauvée, je conteste le caractère approprié de l’autre version en montrant qu’aborder la sécession comme un divorce civil entraînerait des implications normatives contre-intuitives qui enlèveraient tout attrait à l’analogie du divorce sans égard à la faute, ou qui amèneraient ceux qui l’emploient à promouvoir des modifications irréalistes aux institutions légales internationales. (shrink)

Collapse is a term that has attracted much attention in social science literature in recent years, but there remain substantial areas of disagreement about how it should be understood in historical contexts. More specifically, the use of the term collapse often merely serves to dramatize long-past events, to push human actors into the background, and to mystify the past intellectually. At the same time, since human societies are complex systems, the alternative involves grasping the challenges that a holistic analysis presents, (...) taking account of the many different levels and paces at which societies function, and developing appropriate methods that help to integrate science and history. Often neglected elements in considerations of collapse are the perceptions and beliefs of a historical society and how a given society deals with change; an important facet of this, almost entirely ignored in the discussion, is the understanding of time held by the individuals and social groups affected by change; and from this perspective ‘collapse’ depends very much on perception, including the perceptions of the modern commentator. With this in mind, this article challenges simplistic notions of ‘collapse’ in an effort to encourage a more nuanced understanding of the impact and process of both social and environmental change on past human societies. (shrink)

For anyone concerned about students’ moral development, academic dishonesty presents a pervasive problem but also a promising possibility. The present paper describes the theoretical and empirical underpinnings of process-oriented, four-component model approach to promoting students’ “moral functioning” related to academic integrity, and the research project currently underway that is providing Web-based professional development to teachers for using the model in their high school classrooms. In doing so, we hope to develop a scalable approach that offers teachers an opportunity to be (...) the primary agents of change in transforming the problem of academic dishonesty into a possibility for positive youth development. (shrink)

This study examined the efficacy of corrected feedback for improving consent recall throughout the course of an ongoing longitudinal study. Participants were randomly assigned to either a corrected feedback or a no-feedback control condition. Participants completed a consent quiz 2 weeks after consenting to the host study and at months 1, 2, and 3. The corrected feedback group received corrections to erroneous responses and the no-feedback control group did not. The feedback group displayed significantly greater recall overall and in specific (...) content areas. Results support the use of corrected feedback for improving consent recall. (shrink)

"Responding to the growing epidemic of academic dishonesty, this authoritative text lays the groundwork for a positive school makeover. This guide--which culled research from six high schools in Connecticut that indicated that more than 90 percent of students participate in some form of cheating during the average school year--provides teachers, school administrators, and parents with a toolkit of resources and strategies needed to engender a culture of scholastic honesty. With reproducible handouts and instruction on establishing an Academic Integrity Committee, this (...) unique resource provides a plan and policies that support a climate of honesty and hard work. A CD-ROM with copies of each handout and additional references is also included"-- Provided by publisher. (shrink)