Increasing the Salience of Risky Sexual Behavior: Promoting Interest in HIV-Antibody Testing Among Heterosexually Active Young Adults1

The present study examines whether making the risk associated with unsafe sexual behavior more salient would increase interest in HIV testing. The HIV-related beliefs and behaviors reported by a sample of college students were assessed both before and after they had viewed a vulnerability-oriented film about HIV/AIDS. Viewing the film heightened sexually active participants' belief that they might currently be HIV seropositive. Among participants who were currently sexually active, heightened perceptions of risk and concern about sexual behavior predicted intentions to utilize HIV testing services (controlling for initial risk perceptions and behavior). Those who engaged in behaviors related to HIV testing during the 4-week period after the film had expressed stronger HIV intentions and more pronounced feelings of anxiety and concern about prior sexual behavior. These results suggest that risk-enhancing interventions can stimulate interest in HIV testing.     

On disregarding deviants: Exemplar typicality and person perception

A pervasive problem in mental life is that of exemplar selectivity or how one isolates specific category members from other instances of a class. This problem is particupared pronounced in person perception, where perceivers may routinely want to personalize selected individuals while continuing to respond towards other members of the category in a stereotype-based manner. To realize these flexible effects, we hypothesized that, when perceivers encounter a group member, they inevitably encode an exemplar-based representation of the individual in mind. Part of this representation, moreover, is information signaling the person's goodness-of-Fit with respect to his or her salient group memberships. When the representation is activated on a subsequent occasion, these inferences of category fit moderate the extent of stereotypical thinking. The results of two studies provided converging evidence for this analysis of stereotype function. Exemplar typicality moderated both the accessibility of Stereotypic knowledge (Study 1) anxd the extent to which perceivers used a stereotype to organize information about a target (Study 2). We consider the theoretical and practical implications of these findings for our understanding of the role of stereotypes in person perception.     

Metaphors and models in medicine

This paper aims to show how medical scientists may use metaphor in ways closely parallel to poets. Those who believe metaphor has any role at all in science may describe its use in various ways. Associationists think metaphors are based upon likenesses, and collapse the notions of model and metaphor together. But, as an example from the work of Louis Pasteur suggests, metaphor need not be based upon likenesses. Rather it may play a role in making possible a model'sexplanatory significance. Models may presuppose metaphors. The Pasteur example also suggests metaphor may play a part in creating likenesses through its role in classification and reclassification. It is in these ways that the use of metaphor in medical science most closely parallels that in poetry.     

Factors in the learning behavior of the albino rat

The table of intercorrelations published by Dr. R. L. Thorndike in theGenetic Psychology Monographs, 1935,17, No. 1, has been reanalyzed into ten factors. Rotation of the reference vectors resulted in a configuration which, for all practical purposes, may be said to show a simple structure and (except for one variable on one factor) a positive manifold. Five of the factors can be interpreted with some confidence, one only with considerable caution; three factors are specific to the apparatus employed, and for the one remaining factor, no interpretation is attempted; it appears to be a residual plane.     

Excusing Responsibility for the Inevitable

It is by now well established that the fact that an action or aconsequence was inevitable does not excuse the agent from responsibilityfor it, so long as the counterfactual intervention which ensures thatthe act will take place is not actualized. However, in this paper I demonstrate that there is one exception to this principle: when theagent is aware of the counterfactual intervener and the role she wouldplay in some alternative scenario, she might be excused, despite the fact that in the actual scenario she acts, as we say, of her own freewill. I illustrate this contention by way of a critique of Fischer andRavizza's well-known account of responsibility for consequences.     

A multi-attribute extension of the secretary problem: Theory and experiments

We present a generalization of a class of sequential search problems with ordinal ranks, referred to as “secretary” problems, in which applicants are characterized by multiple attributes. We then present a procedure for numerically computing the optimal search policy and test it in two experiments with incentive-compatible payoffs. With payoffs dependent on the absolute ranks of the attributes, we test the optimal search model with both symmetric (Experiment 1) and asymmetric (Experiment 2) search problems. In both experiments we find that, relative to the optimal search policy, subjects stop the search too early. Our results show that this bias is largely driven by a propensity to stop prematurely on applicants of intermediate (relative) quality.     

EXPLANATORY EPIPHENOMENALISM

I propose a new form of epiphenomenalism, 'explanatory epiphenomenalism', the view that the identification of A's mental properties does not provide a causal explanation of A's behaviour. I arrive at this view by showing that although anomalous monism does not entail type epiphenomenalism (despite what many of Davidson's critics have suggested), it does (when coupled with some additional claims) lead to the conclusion that the identification of A's reasons does not causally explain A's behaviour. I then formalize this view and show that it is an attractive position, because it captures the insights of existing forms of epiphenomenalism without their onerous metaphysical commitments.     

Organizational Socialization: A Field Study into Socialization Success and Rate

The last decade has witnessed a resurgence of organizational socialization research. However, a critical question has been neglected: Is there a common underlying pattern to organizational socialization? We investigated newcomer learning, job satisfaction and intent to quit as common indicators of socialization, in research with 222 newcomers at two organizations during the crucial post‐entry period. The results support a learning‐dependent model of newcomer adjustment, with learning in specific domains related to improved attitudinal outcomes. Some aspects of organizational socialization were not uniform across the two organizations, suggesting a need for further development of socialization models and greater accounting for this in organizational socialization research.     

The hippocampus, space, and viewpoints in episodic memory

A computational model of how single neurons in and around the rat hippocampus support spatial navigation is reviewed. The extension of this model, to include the retrieval from human long-term memory of spatial scenes and the spatial context of events is discussed. The model explores the link between spatial and mnemonic functions by supposing that retrieval of spatial information from long-term storage requires the imposition of a particular viewpoint. It is consistent with data relating to representational hemispatial neglect and the involvement of the mammillary bodies, anterior thalamus, and hippocampal formation in supporting both episodic recall and the representation of head direction. Some recent behavioural, neuropsychological, and functional neuroimaging experiments are reviewed, in which virtual reality is used to allow controlled study of navigation and memory for events set within a rich large-scale spatial context. These studies provide convergent evidence that the human hippocampus is involved in both tasks, with some lateralization of function (navigation on the right and episodic memory on the left). A further experiment indicates hippocampal involvement in retrieval of spatial information from a shifted viewpoint. I speculate that the hippocampal role in episodic recollection relates to its ability to represent a viewpoint moving within a spatial framework.     

Questions and reflections: the use of motivational interviewing microskills in a peer-led brief alcohol intervention for college students

The purpose of this study was to examine the association between peer facilitator adherence to motivational interviewing (MI) microskills and college student drinking behavior. First year students (N=67) took part in a Brief Alcohol Screening and Intervention for College Students (BASICS) led by peer facilitators trained in MI and BASICS. Participants were assessed pre- and 2 weeks post-intervention on contemplation to change, as well as, pre- and 3 months post- intervention on drinking quantity. Independent coders used the Motivational Interviewing Treatment Integrity scale (MITI, Moyers, Martin, Manuel, & Miller, 2003) to evaluate therapist MI adherence. Peer facilitators met beginning proficiency in MI on scores of empathy, the ratio of MI adherent behaviors to non-adherent behaviors and the ratio of open questions to total questions as defined by the MITI. Results indicated that a higher number of closed questions was related to less contemplation and a higher number of open questions was related to more contemplation post intervention. A higher number of simple reflections was associated with increased drinking at the 3 month assessment, however, complex reflections were found to attenuate the effect of simple reflections on changes in drinking. These findings highlight the importance of competent reflective listening skills and the need for continual training and supervision for peer facilitators.