Visual perception in fencing: Do the eye movements of fencers represent their information pickup?

The present study examined whether results of athletes' eye movements while they observe fencing attacks reflect their actual information pickup by comparing these results with others gained with temporal and spatial occlusion and cuing techniques. Fifteen top-ranking expert fencers, 15 advanced fencers, and 32 sport students predicted the target region of 405 fencing attacks on a computer monitor. Results of eye movement recordings showed a stronger foveal fixation on the opponent's trunk and weapon in the two fencer groups. Top-ranking expert fencers fixated particularly on the upper trunk. This matched their performance decrements in the spatial occlusion condition. However, when the upper trunk was occluded, participants also shifted eye movements to neighboring body regions. Adding cues to the video material had no positive effects on prediction performance. We conclude that gaze behavior does not necessarily represent information pickup, but that studies applying the spatial occlusion paradigm should also register eye movements to avoid underestimating the information contributed by occluded regions.     

An augmented reality system validation for the treatment of cockroach phobia

Augmented reality (AR) is a new technology in which various virtual elements are incorporated into the user's perception of the real world. The most significant aspect of AR is that the virtual elements add relevant and helpful information to the real scene. AR shares some important characteristics with virtual reality as applied in clinical psychology. However, AR offers additional features that might be crucial for treating certain problems. An AR system designed to treat insect phobia has been used for treating phobia of small animals, and positive preliminary data about the global efficacy of the system have been obtained. However, it is necessary to determine the capacity of similar AR systems and their elements that are designed to evoke anxiety in participants; this is achieved by testing the correspondence between the inclusion of feared stimuli and the induction of anxiety. The objective of the present work is to validate whether the stimuli included in the AR-Insect Phobia system are capable of inducing anxiety in six participants diagnosed with cockroach phobia. Results support the adequacy of each element of the system in inducing anxiety in all participants.     

Ideal selves and self‐esteem in people with independent or interdependent self‐construal

Not living up to one's ideal self has been shown to coincide with decreased self‐esteem. In the present paper, this notion is applied to the differentiation between people with independent versus interdependent self‐construal. We suggest that the ideal self of independents differs in two respects from the one of interdependents: with respect to its contents (autonomous versus social self‐knowledge) and with respect to the degree of context‐dependency of the encoded knowledge (context‐independent versus context‐dependent self‐knowledge). In three studies, via a priming we either manipulated contents or degree of context‐dependency of what participants considered themselves to actually be like. On both explicit and implicit measures, participants with independent construal indicated higher self‐esteem after priming of autonomous and context‐independent knowledge than after priming of social and context‐dependent knowledge. The opposite pattern was observed in participants with interdependent construal. Results suggest that independent and interdependent construals mirror different ideals which are applied as a comparison standard when evaluating the self. Copyright © 2006 John Wiley & Sons, Ltd.     

A comparison between elemental and compound training of cues in retrospective revaluation

Associative learning theories assume that cue interaction and, specifically, retrospective revaluation occur only when the target cue is previously trained in compound with the to-be-revalued cue. However, there are recent demonstrations of retrospective revaluation in the absence of compound training (e.g., Matute & Pine?o, 1998a, 1998b). Nevertheless, it seems reasonable to assume that cue interaction should be stronger when the cues are trained together than when they are trained apart. In two experiments with humans, we directly compared compound and elemental training of cues. The results showed that retrospective revaluation in the elemental condition can be as strong as and, sometimes, stronger than that in the compound condition. This suggests that within-compound associations are not necessary for retrospective revaluation to occur and that these effects can possibly be best understood in the framework of general interference theory.     

The Catholic Church, moral doctrine, and HIV prevention in Recife, Brazil: Negotiating the contradictions between religious belief and the realities of everyday life

Religious beliefs have had a key role in shaping local responses to HIV and AIDS. As the world's largest Catholic country, Brazil is no exception. Yet little research has been conducted to document how the religious doctrine is enacted in practice among its lay leaders and followers. In this article, we present ethnographic research from Recife, Brazil, conducted to understand the way in which religious doctrines are interpreted on a local level. Contextualized within the sociology of contemporary Brazilian Catholicism, we draw on interviews with clergy members, lay leaders and parishioners in order to discuss how the Catholic Church's vision of sexuality translates into the everyday lives of its followers by. We explore the disjuncture between the Catholic ideals of fidelity and delaying sex until marriage with the everyday reality of the Church's followers, highlighting the role that gender plays in defining sexual roles and expectations. We conclude posing questions for future research and HIV prevention strategies considering the formal institutional response of the Brazilian Catholic Church to AIDS on one hand, and the social and cultural contexts in which Catholics live their daily lives on the other.     

Letter‐case information and the identification of brand names

A central tenet of most current models of visual‐word recognition is that lexical units are activated on the basis of case‐invariant abstract letter representations. Here, we examined this assumption by using a unique type of words: brand names. The rationale of the experiments is that brand names are archetypically printed either in lowercase (e.g., adidas ) or uppercase (e.g., IKEA ). This allows us to present the brand names in their standard or non‐standard case configuration (e.g., adidas , IKEA vs. ADIDAS , ikea , respectively). We conducted two experiments with a brand‐decision task (‘is it a brand name?’): a single‐presentation experiment and a masked priming experiment. Results in the single‐presentation experiment revealed faster identification times of brand names in their standard case configuration than in their non‐standard case configuration (i.e., adidas faster than ADIDAS ; IKEA faster than ikea ). In the masked priming experiment, we found faster identification times of brand names when they were preceded by an identity prime that matched its standard case configuration than when it did not (i.e., faster response times to adidas ‐adidas than to ADIDAS ‐adidas ). Taken together, the present findings strongly suggest that letter‐case information forms part of a brand name's graphemic information, thus posing some limits to current models of visual‐word recognition.     

Syntactic processing in the human brain: what we know, what we don't know, and a suggestion for how to proceed

For every claim in the neuroimaging literature about a particular brain region supporting syntactic processing, there exist other claims implicating the target region in different linguistic processes, and, in many cases, in non-linguistic cognitive processes (e.g., Blumstein, 2009). We argue that traditional group analysis methods in neuroimaging may obscure functional specificity because of inter-subject anatomical variability (Fedorenko & Kanwisher, 2009). In Fedorenko, Hsieh, Nieto-Castanon, Whitfield-Gabrieli, and Kanwisher (2010) we presented a functional localizer that allows quick and reliable identification of key language-sensitive regions in each individual brain. This approach enables pooling data from corresponding functional regions across subjects rather than from the same locations in stereotaxic space that may differ functionally due to inter-subject anatomical variability. In the current paper we demonstrate that the individual-subjects functional localization approach is superior to the traditional methods in its ability to distinguish among conditions in a brain region’s response. This ability is at the core of all neuroimaging research and is critical for answering questions of functional specialization (e.g., does a brain region specialize for processing syntactic aspects of the linguistic signal), which is in turn essential for making inferences about the precise computations conducted in each brain region. Based on our results, we argue that supplementing existing methods with an individual-subjects functional localization approach may lead to a clearer picture of the neural basis of syntactic processing, as it has in some other domains, such as high-level vision (e.g., Kanwisher, 2010) and social cognition (e.g., Saxe & Kanwisher, 2003).     

Beyond words: Sensory properties of depressive thoughts

Verbal thoughts (such as negative cognitions) and sensory phenomena (such as visual mental imagery) are usually conceptualised as distinct mental experiences. The present study examined to what extent depressive thoughts are accompanied by sensory experiences and how this is associated with symptom severity, insight of illness and quality of life. A large sample of mildly to moderately depressed patients (N = 356) was recruited from multiple sources and asked about sensory properties of their depressive thoughts in an online study. Diagnostic status and symptom severity were established over a telephone interview with trained raters. Sensory properties of negative thoughts were reported by 56.5% of the sample (i.e., sensation in at least one sensory modality). The highest prevalence was seen for bodily (39.6%) followed by auditory (30.6%) and visual (27.2%) sensations. Patients reporting sensory properties of thoughts showed more severe psychopathological symptoms than those who did not. The degree of perceptuality was marginally associated with quality of life. The findings support the notion that depressive thoughts are not only verbal but commonly accompanied by sensory experiences. The perceptuality of depressive thoughts and the resulting sense of authenticity may contribute to the emotional impact and pervasiveness of such thoughts, making them difficult to dismiss for their holder.