A house divided? The psychology of red and blue America

Recently it has become commonplace in America for commentators and the public to use the terms "red" and "blue" to refer to perceived cultural differences in America and American politics. Although a political divide may exist in America today, these particular terms are inaccurate and reductive. This article presents research from social psychology demonstrating that the increased use of these terms is likely to increase the conflict between political groups in America by making political conflict salient in nonpolitical contexts, reducing the ability of Americans to form multifaceted complex identities, pushing Americans to misperceive political in-groups and out-groups, and contributing to a "spiral of silence." An alternative model for discussing cultural differences is proposed.     

Infants' early ability to segment the conversational speech signal predicts later language development: a retrospective analysis

Two studies examined relationships between infants' early speech processing performance and later language and cognitive outcomes. Study 1 found that performance on speech segmentation tasks before 12 months of age related to expressive vocabulary at 24 months. However, performance on other tasks was not related to 2-year vocabulary. Study 2 assessed linguistic and cognitive skills at 4-6 years of age for children who had participated in segmentation studies as infants. Children who had been able to segment words from fluent speech scored higher on language measures, but not general IQ, as preschoolers. Results suggest that speech segmentation ability is an important prerequisite for successful language development, and they offer potential for developing measures to detect language impairment at an earlier age.     

The Interactive Influences of Friend Deviance and Reward Dominance on the Development of Externalizing Behavior During Middle Adolescence

This study investigated the interactive effects of friend deviance and reward dominance on the development of externalizing behavior of adolescents in the Child Development Project. Reward dominance was assessed at age 16 by performance on a computer-presented card-playing game in which participants had the choice of either continuing or discontinuing the game as the likelihood of reward decreased and the likelihood of punishment increased. At ages 14 and 16, friend deviance and externalizing behavior were assessed through self-report. As expected, based on motivational balance and response modulation theories, path analysis revealed that age 14 friend deviance predicted age 16 externalizing behavior controlling for age 14 externalizing behavior. Reward dominance was a significant moderator of the relationship between friend deviance and externalizing behavior. The contributions of deviant friends to the development of externalizing behavior were enhanced by adolescents' reward dominance.     

Dysfunctional beliefs discriminate personality disorders

This study examines whether specific sets of dysfunctional beliefs are differentially associated with five personality disorders (PDs) as predicted by cognitive theory. Seven hundred fifty-six psychiatric outpatients completed the Personality Belief Questionnaire (PBQ) at intake and were assessed for PDs using a standardized clinical interview conducted by assessors who were blind to patients' PBQ responses. Findings showed that patients with avoidant, dependent, obsessive-compulsive, narcissistic, and paranoid PDs preferentially endorsed PBQ beliefs theoretically linked to their specific disorders. The study results support the cognitive theory of personality disorders. Suggestions are made regarding the clinical utility of the PBQ with personality-disordered patients and future research on the PBQ.     

An event-related fMRI study of syntactic and semantic violations

We used event-related functional magnetic resonance imaging to identify brain regions involved in syntactic and semantic processing. Healthy adult males read well-formed sentences randomly intermixed with sentences which either contained violations of syntactic structure or were semantically implausible. Reading anomalous sentences, as compared to well-formed sentences, yielded distinct patterns of activation for the two violation types. Syntactic violations elicited significantly greater activation than semantic violations primarily in superior frontal cortex. Semantically incongruent sentences elicited greater activation than syntactic violations in the left hippocampal and parahippocampal gyri, the angular gyri bilaterally, the right middle temporal gyrus, and the left inferior frontal sulcus. These results demonstrate that syntactic and semantic processing result in nonidentical patterns of activation, including greater frontal engagement during syntactic processing and larger increases in temporal and temporo-parietal regions during semantic analyses.     

Deficient response modulation and emotion processing in low-anxious Caucasian psychopathic offenders: results from a lexical decision task

The clinical and research literatures on psychopathy have identified an emotion paradox: Psychopaths display normal appraisal but impaired use of emotion cues. Using R. D. Hare's (1991) Psychopathy Checklist-Revised and the G. S. Welsh Anxiety Scale (1956), the authors identified low-anxious psychopaths and controls and examined predictions concerning their performance on a lexical-decision task. Results supported all the predictions: (a) low-anxious psychopaths appraised emotion cues as well as controls; (b) their lexical decisions were relatively unaffected by emotion cues; (c) their lexical decisions were relatively unaffected by affectively neutral word-frequency cues; and (d) their performance deficits were specific to conditions involving right-handed responses. The authors propose that deficient response modulation may underlie both the emotional and cognitive deficits associated with low-anxious psychopaths.     

Status,testosterone, and human intellectual performance: stereotype threat as status concern

Results from two experiments suggest that stereotype-threat effects are special cases of a more general process involving the need to maintain or enhance status. We hypothesized thatsituations capable of confirming a performance stereotype might representeither a threat to status or an opportunity for enhancement of status,depending on the nature of the stereotype. The positive relationship betweenbaseline testosterone and status sensitivity led us to hypothesize that hightestosterone levels in males and females would amplify existing performanceexpectations when gender-based math-performance stereotypes were activated.In Study 1, high-testosterone females performed poorly on a math test when anegative performance stereotype was primed. In Study 2, high-testosteronemales excelled on a math test when a positive performance stereotype wasprimed. The moderating effect of testosterone on performance suggests that astereotype-relevant situation is capable of conferring either a loss or again of status on targets of the stereotype.     

Are all psychopathic individuals low-anxious?

Theorists commonly assume that true or primary psychopathic individuals experience little anxiety or neurotic conflict. This study examined the relationship between psychopathy and anxiety in 104 Caucasian and 113 African American incarcerated men using the Psychopathy Checklist--Revised (PCL-R; R. D. Hare, 1991) and multiple self-report measures to tap diverse interpretations of the anxiety construct (i.e., neuroticism, traditional definitions of anxiety, and fear). Analyses involving zero-order, semipartial, and point-biserial correlations indicate that PCL-R psychopathy and the anxiety construct are essentially independent. These findings suggest that either (a) the traditional belief that all psychopathic individuals are low-anxious is incorrect or (b) the PCL-R is not an adequate measure of primary psychopathy.     

Monotic and dichotic presentation of phonemic elements in a backward recognition-masking paradigm

Summary Auditory processing was examined in eight normal subjects using monotic and dichotic presentations of phonemic elements in an auditory backward recognition-masking paradigm. Experimental trials consisted of the presentation of one of three equiprobable consonant-vowel targets (/ba/,/da/,/ga/) followed by a vowel masker (/a/), separated by a variable silent interstimulus interval (ISI). For the dichotic condition, the mean percentage of correct recognition scores for target identification improved systematically with increases in ISIs, reaching an asymptote followed by an apparent plateau. In contrast, mean performance accuracy for the monotic condition revealed a U-shaped function for signal pairs having short temporal offsets. Although the dichotic presentations resulted in overall lower mean recognition scores, comparability between listening conditions was observed at prolonged ISIs. Observed differences in performance between the monotic and dichotic conditions at short-duration ISIs suggested the existence of different processing mechanisms, correlated with integration and interruption of phonemic pairs, for target-mask interactions occurring in close temporal succession.     

Alcohol and drug abuse-dependence disorders in psychopathic and nonpsychopathic criminal offenders

Co-occurrence of psychopathy (assessed with the Psychopathy Checklist) and lifetime Diagnostic and Statistical Manual of Mental Disorders (3rd ed.) alcohol and drug disorders (assessed with the National Institute of Mental Health Diagnostic Interview Schedule) was examined in a sample of 360 male inmates. Consistent with previous research that used diagnoses of antisocial personality disorder, psychopaths were more likely than nonpsychopaths to have lifetime diagnoses of alcoholism, any drug disorder, and multiple drug disorders. We also examined the relation between substance abuse and the 2 factors of the Psychopathy Checklist. Substance abuse was significantly related to general social deviance (Factor 2) but was unrelated to core personality features of psychopathy (Factor 1). We present two possible models of psychopathy (unitary syndrome vs. dual-diathesis model) that may account for the association between psychopathy and substance abuse.