Obsessive-compulsive disorder patients display enhanced latent inhibition on a visual search task

Latent inhibition (LI) is a phenomenon that reflects the ability to ignore irrelevant stimuli. LI is attenuated in some schizophrenic patient groups and in high schizotypal normal participants. One study has found enhanced LI in patients with obsessive-compulsive disorder (OCD [Swerdlow, N. R., Hartston, H. J., & Hartman, P. L., 1999. Enhanced visual latent inhibition in obsessive-compulsive disorder. Biological Psychiatry, 45, 482-488]). The present experiment replicated this finding using a within-subject visual search LI task, with OCD patients displaying more LI than healthy controls. The contrasting LI effects in schizophrenia and OCD are discussed in terms of how these groups differentially process relevant and irrelevant stimuli, and how that outcome affects subsequent behavior.     

Cooperative,pure, and selfish trusting: Their distinctive effects on the reaction of trust recipients

Three types of trusting have been distinguished conceptually and empirically. In cooperative trusting the trust giver explicitly expects a reaction from the trust recipient that fits with the equality norm. In pure trusting, no explicit expectation is expressed by the giver. In selfish trusting the giver explicitly expects a reaction that benefits himself or herself at the expense of the recipient. We asked whether the three types of trust elicit distinctive reactions from trust recipients. Each participant was paired with a fictitious player who ostensibly enabled him or her to divide money between them. As hypothesized, both cooperative and pure trusting elicited more equal allocations than did selfish trusting. A second hypothesis, that cooperative trust would yield more equal allocations than pure trust, was not supported. Results are discussed in terms of equality norm, self‐interest norm, reciprocity norm, reactance theory, social sanctioning, and the need to comply with others' expectations. Copyright © 2004 John Wiley & Sons, Ltd.     

Heidegger on Human Finitude: Beginning at the End

Interpreters generally understand Heidegger's notion of finitude in one of two ways: (1) as our mortality – that, in the end, we are certain to die; or (2) the susceptibility of our self‐ and world‐understanding to collapse – the fragility and vulnerability of human sense‐making. In this paper, I put forward an alternative account of what Heidegger means by ‘finitude’: human self‐ and world‐understanding is non‐transparently grounded in a ‘final end.’ Our self‐ and world‐understanding, that is, begins at the end, and authenticity requires us to interpretively appropriate the full range of this understanding. After laying out this view of finitude, via an analogical appeal to the Socratic account of action and desire in the Gorgias, I discuss its relationship to the two leading views of finitude mentioned above.     

Escalation of Commitment: The Effect of Number and Attractiveness of Available Investment Alternatives

Purpose  

The purpose of this study was to examine the hypothesis that decision difficulty increases the likelihood of commitment to a failing project (escalation). The hypothesis was based on findings regarding status quo bias. Three aspects of decision difficulty were tested: equivalence of options, option set size and attractiveness structure of the alternatives.     

From emotional intelligence to intelligent choice of partner

The authors examined interpersonal correlates of emotional intelligence (EI) in a sample of individuals with a history of depression. The authors focused on potentially adaptive relationship dynamics associated with EI that may help protect these vulnerable individuals from further distress. Participants with high EI, as measured with the Mayer-Salovey-Caruso Emotional Intelligence Test, saw their partners as less hostile, critical, and rejecting in their support styles than did participants with low EI. Partners' own reports mostly corroborated these findings. Unexpectedly, although partners of high EI participants reported offering less active and directive support than did partners of low EI participants, high EI participants perceived their partners as more supportive than did low EI participants. Partners of emotionally intelligent participants also reported being more conscientious and open to experiences, offering some evidence of the stress-buffering hypothesis associated with higher EI.     

An ironic effect of monitoring closeness

Most theories of goal pursuit underscore the beneficial consequences of monitoring progress towards goals. However, effects of affect labelling and dissociations between experience and meta-consciousness suggest that monitoring may not always facilitate goal pursuit. We predicted that in the case of pursuing interpersonal closeness, intense monitoring of progress would have a detrimental effect. We tested this hypothesis with the intimate conversation procedure, adapted from Aron, Melinat, Aron, Vallone, and Bator (1997). Participants in the closeness-monitoring condition asked themselves every five minutes in the course of a 45-minute interaction with a partner whether they felt any closer to their partner, whereas participants in the control condition monitored the room temperature. As predicted, intense monitoring interfered with achieving a feeling of closeness, as measured by sitting distance between pair members following the intimate conversation procedure. We discuss the possibility that monitoring would also be detrimental for achieving other goals that are internal states.     

Attentional mechanisms in learned predictiveness

Cues that reliably predict an outcome in an initial phase of training (Phase 1) are learned faster in a second phase of training (Phase 2) than cues that were unreliable in Phase 1. This result is observed despite objectively equal relationships between the cues and the outcomes in Phase 2, and consequently constitutes a nonnormative bias in learning. The present experiments sought to confirm that this learned predictiveness effect is the product of attentional processes (Experiment 1), and to test further whether these processes are under voluntary control or are automatic in nature (Experiment 2). In addition to the usual outcome prediction measure, eye-gaze behavior was also monitored. The results indicated an important role for top-down strategic attentional processes in the learned predictiveness task. In contrast, no evidence for an automatic attentional bias was found.     

Spreading Activation in an Attractor Network With Latching Dynamics: Automatic Semantic Priming Revisited

Localist models of spreading activation (SA) and models assuming distributed representations offer very different takes on semantic priming, a widely investigated paradigm in word recognition and semantic memory research. In this study, we implemented SA in an attractor neural network model with distributed representations and created a unified framework for the two approaches. Our models assume a synaptic depression mechanism leading to autonomous transitions between encoded memory patterns (latching dynamics), which account for the major characteristics of automatic semantic priming in humans. Using computer simulations, we demonstrated how findings that challenged attractor‐based networks in the past, such as mediated and asymmetric priming, are a natural consequence of our present model’s dynamics. Puzzling results regarding backward priming were also given a straightforward explanation. In addition, the current model addresses some of the differences between semantic and associative relatedness and explains how these differences interact with stimulus onset asynchrony in priming experiments.