Sexual behaviour in injecting drug users

A survey of the self-reported sexual behaviors of 1239 intravenous drug users recruited off the streets in Sydney, Australia, highlighted the impact of both sexual orientation and gender on the risk of human immunodeficiency virus (HIV) infection in this population. The sample included 908 men (mean age, 27.9 years) and 331 women (mean age, 26.3 years), the majority of whom were unemployed or receiving social security benefits. Among male respondents, 50 were homosexual, 117 were bisexual, and 719 were heterosexual; for females these numbers were 10, 95, and 220, respectively. Oral and vaginal sex were the most commonly reported practices among heterosexuals, while homosexuals primarily reported manual stimulation and oro-genital contact. The regular sexual partners of male intravenous drug users tended not to be addicts, while female drug users were primarily involved with male partners who also abused drugs. Among male respondents, condom use was highest among homosexuals, followed by bisexuals, and lowest among heterosexuals; there were no significant differences by sexual orientation in female respondents' condom use. Overall, condoms were most likely to be utilized in anal sex and least likely in the case of oral sex. Condom use was about 5% lower when a regular as opposed to casual sexual partner was involved. Most of the 64 HIV-positive respondents were homosexuals, suggesting that sexual orientation rather than drug abuse was the primary risk factor. Given the finding that there is substantial variation in condom use among subgroups of intravenous drug abusers, it is recommended that HIV prevention programs adopt a diversified rather than uniform approach.     

Anterograde and retrograde enhancement of 24-h memory by glucose in elderly humans.

The present experiment examined anterograde and retrograde enhancement of memory storage by glucose in elderly humans. Glucose (50 g) or saccharin was administered shortly before or immediately after acquisition of a narrative prose passage. Recall was tested 24 h later. Glucose administration before or after presentation of the material to be learned significantly improved recall 24 h later compared to performance in the saccharin condition. These findings suggest that glucose retroactively enhances memory storage processing in elderly humans and that the enhancement of memory outlasts the transient elevations in blood glucose levels after glucose ingestion.     

Rational action and uncontrolled violence: Explaining Hindu communalism

The assertion of Hindu identity in contemporary India takes two characteristic forms: organized movements notable for their effective action; and uncontrolled mob violence. Understanding this apparent paradox entails both general religio-historical explanation and culturally specific interpretation. From a general perspective, organized movements and mob violence each offers a means of identifying with the same religious object—in this case, the Hindu nation, newly valorized in urban India. But the specific relationship between the two can be interpreted through themes of control and violence in Shaivite myth.     

Enhancing the creative problem-solving skills of educable mentally retarded students

60 educable mentally retarded students from 3 schools in a large urban school system received 9 wk. of instruction from an adaptation of the Productive Thinking Program. Their performance on measures of creative thinking was compared with that of 60 students who received no additional instruction. The conclusions drawn were that (1) special attention to creative thinking training for educable mentally retarded students may be quite effective and results stable over time and (2) the measures of fluency, flexibility, and originality are the most useful in assessing creative thinking for this group.     

Opportunity for thought as a mediator of attraction to a dissimilar stranger: A further test of an information seeking interpretation

It has previously been shown that confusion, produced by an ambiguous film, leads to increased attraction to attitudinally dissimilar others. It was posited that confusion leads to a search for information that will help to structure the confusing situation, and that dissimilar others have perspectives that are of value in this regard. In the present study, subjects were exposed to either a confusing film, a nonconfusing film preceded by an explanation designed to produce confusion, or the nonconfusing film with no preceding explanation. They then were either given an opportunity to think about the film's meaning or were deprived of this opportunity through a filler task. It was argued that the opportunity to think about the film would allow subjects to gain structure, and that this would reduce their confusion, decrease their need for more information, and thereby decrease their attraction to a dissimilar other. The results supported this contention. That is, subjects exposed to either the confusing film or the nonconfusing film with an explanation and then given an opportunity for thought showed significantly less attraction to a dissimilar stranger than their counterparts who were deprived of this opportunity.     

Comorbidity of Personality Disorders and Somatization Disorder: A Meta-analytic Review

Meta-analysis of studies assessing the comorbidity of somatization disorder (SD) with one or more personality disorders (PDs) revealed that-contrary to the assertions of the Diagnostic and Statistical Manual of Mental Disorders (4th edition, text revision)-SD co-occurs with the majority of Axis II PDs. Although comorbidity effect sizes (rs) linking SD with paranoid PD and obsessive-compulsive PD were small, effect sizes for antisocial, borderline, narcissistic, histrionic, avoidant, and dependent PD yielded rs about or above 0.20. Comorbidity information in future versions of the DSM should be revised to reflect the greater number of PDs empirically linked with SD.

Multiple Belief Systems in Psychotherapy: The Effects of Religion and Professional Beliefs on Clinical Judgment

This study examined the effects of religious and professional beliefs on clinical judgment. Eighty-seven psychotherapists completed a religious belief survey and a professional belief survey, as well as a questionnaire concerning internal conflict between professional and religious beliefs. The subjects then read two brief vignettes, describing a religious and a non-religious patient, and rated the patients with regard to optimism or pessimism concerning responsiveness to treatment. The results showed that there was no significant relationship between religious and professional beliefs. However, the strength of religious beliefs predicted optimism for the religious patient. In addition, there was a significant interaction effect between strength of religious beliefs and strength of professional beliefs on clinical ratings.     

Turning it Upside Down: Areas of Preserved Cognitive Function in Schizophrenia

Patients with schizophrenia demonstrate marked impairments on most clinical neuropsychological tests. These findings suggest that patients suffer from a generalized form of cognitive impairment, with little evidence of spared performance documented in several large meta-analytic reviews of the clinical literature. In contrast, we review evidence for relative sparing of aspects of attention, procedural memory, and emotional processing observed in studies that have employed experimental approaches adapted from the cognitive and affective neuroscience literature. These islands of preserved performance suggest that the cognitive deficits in schizophrenia are not as general as they appear to be when assayed with clinical neuropsychological methods. The apparent contradiction in findings across methods may offer important clues about the nature of cognitive impairment in schizophrenia. The documentation of preserved cognitive function in schizophrenia may serve to sharpen hypotheses about the biological mechanisms that are implicated in the illness.     

Team Reasoning and the Rational Choice of Payoff-Dominant Outcomes in Games

Topoi - Standard game theory cannot explain the selection of payoff-dominant outcomes that are best for all players in common-interest games. Theories of team reasoning can explain why such...