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171.
A confirmatory factor analysis of the Beck Hopelessness Scale in a sample of 340 Italian students did not support the 3-factor model reported for previous samples of psychiatric patients. A follow-up principal axis factor analysis yielded two interpretable correlated factors, suggesting that the structure of the scale may differ across clinical and nonclinical groups and as a function of nationality. 相似文献
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Mental health professionals conducting screenings in jail settings face formidable challenges in identifying inmates at risk for major depression and suicide. Psychologists often rely on correctional staff to provide initial appraisals of those inmates requiring further evaluation. In a sample of 100 jail detainees, the effectiveness of two specialized screens (the Referral Decision Scale and Mental Disability/Suicide Intake Screen or MDSIS) and one general screen (Personality Assessment Screener or PAS) was evaluated. For suicidal ideation, the MDSIS composite score evidenced promise (sensitivity = 1.00; specificity = 0.71). In ruling out major depression, the PAS Negative Affect subscale was useful for the inmate participants. 相似文献
174.
Recent evidence suggests that the hippocampus may have a functional role in mediating relapse to cocaine-seeking behavior. Based on the importance of the ventral CA subfields in mediating reward, the present experiment determined the effects of temporary inactivation of the ventral hippocampus on reinstatement of cocaine-seeking in a rodent model of relapse. Male, Sprague-Dawley rats self-administered i.v. cocaine (0.6 mg/kg/infusion) in the presence of discrete conditioned cues (tone+light) in daily 2-h sessions for ten days. Following seven days of extinction sessions in which neither cues nor drug were available, rats underwent four reinstatement tests in a counterbalanced, within-subjects design. Bilateral microinjections of GABA receptor agonists (baclofen/muscimol (B/M; 1.0 mM/0.1 mM) [corrected] into the ventral hippocampus significantly attenuated cue-induced and cocaine-primed reinstatement compared with vehicle microinjections in the same rats. In contrast, injections just outside the ventral hippocampus did not block either form of reinstatement. Furthermore, inactivation failed to affect responding for food reinforcement, baseline extinction responding, or locomotor activity. These data indicate that the ventral hippocampus plays an important role in the relapse to cocaine-seeking behavior and may interact with key limbic structures previously implicated in cocaine addiction. 相似文献
175.
An overview is presented on research conducted in our lab to quantify the underlying principles behind the recognition of temporal patterns. We have been developing a theory based upon pattern matching and time-series analysis, which allows us to model and understand how humans recognize familiar patterns evolving over time and how performance degrades with noise. While our studies are primarily scientific in nature, the work has application beyond the elucidation of psychological and physiological mechanisms. We illustrate an application of these ideas to computer-based human identification through gait analysis. This study also illustrates a novel approach to interdisciplinary research by integrating experimental psychology with that of engineering design. 相似文献
176.
Blair Beadnell Anthony Wilsdon Elizabeth A. Wells Diane M. Morison Mary Rogers Gillmore Marilyn Hoppe 《Journal of applied social psychology》2007,37(12):2840-2876
This study tested the theory of planned behavior's (TPB) expectation that attitudes, social norms, and self‐efficacy would mediate other variables' effects on intention for having sex and probability of having sex. Longitudinal data were collected from 790 high‐school‐aged adolescents. In an intrapersonal variable model, sensation seeking, alcohol use, hard work, smoking, and moral beliefs had mediated effects, but the last 2 also had direct effects (on intention and behavior, respectively). In an interpersonal model, school attachment had mediated effects, pressure to have sex had a direct effect on behavior, and parent communication and number of sexually active friends had both. Intrapersonal variable effects were better described by the TPB than those of interpersonal variables. Targeting distal psychosocial factors may enhance intervention efficacy. 相似文献
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Richard Rogers Allyson J. Sharf Bryan Myers Eric Y. Drogin Margot M. Williams 《Behavioral sciences & the law》2020,38(1):12-31
The Sixth Amendment right to an “impartial jury” should guarantee fundamental fairness that in capital cases may literally be a matter of life and death. For ecological validity, the current study focuses on capital jury questionnaires (CJQs) employed in actual death-penalty cases. Study I examined 248 undergraduates and their responses to death-penalty relevant questions. As an MTurk investigation, Study II consisted of 259 community members potentially eligible for capital trial jury trials. Misrepresentations were operationalized as either denials (concealing their true views) or outright deceptions (dissembling the opposite viewpoint). Both studies found that CJQ items were very susceptible to both types of misrepresentation, irrespective of support-life or support-death views. Nearly 30% of undergraduates openly acknowledged that they would misrepresent close to half their CJQ responses. Overall, community members were much more willing to engage in denials and outright deceptions. The discussion focuses on how CJQs could be improved to promote candor about death-penalty views. 相似文献