Deficits on the Continuous Performance Test within the schizophrenia spectrum and the mediating effects of family history of schizophrenia

Individuals with schizophrenia spectrum personality disorders (SSPD) and schizophrenia show similar cognitive impairments. The authors examined the contributions of SSPD symptoms and familial risk for schizophrenia to impairments on the Continuous Performance Test--Identical Pairs Version. Participants included 103 schizophrenia patients, 66 first-degree relatives (29 SSPD), and 103 community controls (26 SSPD) screened for family history of psychosis. Patients and SSPD relatives performed significantly worse than non-SSPD relatives and SSPD and non-SSPD community controls. No differences in performance were observed among non-SSPD relatives and SSPD and non-SSPD community controls. Results suggest a continuum in which risk for schizophrenia-related cognitive impairments is highest among patients and SSPD relatives, intermediate among non-SSPD relatives, and lowest among SSPD and non-SSPD community controls. Results suggest that SSPD in the absence of a family history of psychosis may be a phenocopy.     

Consider the situation: Reducing automatic stereotyping through Situational Attribution Training

The present research investigated the effectiveness of a new technique for reducing automatic biases rooted in attribution theory - the Situational Attribution Training Technique. The goal of this strategy extends previous work by targeting the fundamental attributional pillars underlying automatic stereotyping. We aimed to circumvent the well-documented tendency for individuals to be overly reliant on dispositional attributions when perceiving negative stereotype-consistent behaviors performed by outgroup members. By teaching participants to consider situational attributions for such behaviors, we expected a reduction in outgroup stereotyping. Specifically, White participants were trained extensively to choose situational over dispositional explanations for negative stereotype-consistent behaviors performed by Black men. Across two experiments, participants who completed Situational Attribution Training demonstrated reduced automatic racial stereotyping on a person categorization task, relative to control participants who exhibited substantial automatic stereotyping. The implications of these findings for the nature and reduction of intergroup biases are discussed.     

Scientific language inside out

The Scientific Voice, by Scott L. Montgomery, (New York and London: Guilford Press, 1996), 460 pages, $44.50 (cloth); $19.95 (paper)     

Chain letters: Players and their accounts

Even though it is unlawful to send chain letters through the mails, thousands of Americans send them to friends, acquaintances, and strangers in hopes that their names will move to the top of the pyramid, and they will receive the influx of tax‐free dollars from those at the bottom of the chain. This paper analyzes the content and structure of the chain letter and also describes the accounts which chain letter players (N=129) provide for their participation. Differences between male and female accounts and participation strategies are provided. The implications for these differences for understanding participation in the underground economy are discussed.     

The Social Psychology of Sustainability

The earth cannot support humanity's increasing population and consumption. Concerned scientists and citizens are therefore wondering how we might work toward a sustainable, survivable human future. Sustainability involves increased technological efficiency and agricultural productivity, but also incentives and attitudes that moderate consumption. Social psychology contributes to changing attitudes and behavior with evidence that a) materialism exacts psychic as well as environmental costs, and b) economic growth has failed to improve human morale. Two principles-the adaptation level phenomenon and social comparison-help explain why materialism and increasing affluence fail to satisfy.     

Knowing That P without Believing That P

Most epistemologists hold that knowledge entails belief. However, proponents of this claim rarely offer a positive argument in support of it. Rather, they tend to treat the view as obvious and assert that there are no convincing counterexamples. We find this strategy to be problematic. We do not find the standard view obvious, and moreover, we think there are cases in which it is intuitively plausible that a subject knows some proposition P without—or at least without determinately—believing that P. Accordingly, we present five plausible examples of knowledge without (determinate) belief, and we present empirical evidence suggesting that our intuitions about these scenarios are not atypical.