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21.
We compared the neuropsychological test performance of adult ADHD patients to the neurocognitive profiles of control subjects recruited from the general population. We administered a neuropsychological test battery consisting of measures considered sensitive to either orbitofrontal or dorsolateral-prefrontal (DLPF) dysfunction. Orbitofrontal hypoarousal is associated with behavioral disinhibition and a relative indifference to punishment. The DLPF region may function as a central executive system. Indeed, DLPF dysfunction may underlie many of the cardinal symptoms associated with ADHD. We tested the following hypotheses: (1) adult subjects meeting DSM-IV criteria for ADHD, predominantly hyperactive-impulsive type, would display neuropsychological deficits on tasks sensitive to orbitofrontal dysfunction; (2) adult subjects meeting DSM-IV criteria for ADHD, predominantly inattentive type, would perform poorly on measures sensitive to DLPF dysfunction; and (3) adult subjects meeting DSM-IV criteria for ADHD, combined type, would exhibit performance deficits on orbitofrontal measures and on DLPF tasks. Results partially confirmed our hypotheses. Subtyping ADHD patients revealed important group differences. Distinct neurocognitive and clinical profiles were observed. 相似文献
22.
Interaction of the Dopaminergic System With Mechanisms of Associative Learning and Cognition:Implications for Drug Abuse 总被引:2,自引:0,他引:2
The possible role of mechanisms of associative learning in drug abuse and addiction is considered with respect to psychomotor stimulant drugs such as cocaine and amphetamine. Although the initial sites of the reinforcing effects of these drugs are associated with the mesolimbic dopamine projection to the nucleus accumbens, other important neuromodulatory influences are identified. These include the amygdala, which appears to mediate the associative processes by which environmental stimuli come to control drug-seeking behavior. Possible parallel mechanisms by which stimulant drugs enhance effects of aversive as well as rewarding stimuli are discussed. The importance of attribution and context in determining relative rewarding and aversive effects is pointed out. These attributional and contextual factors may be a function of cortical regions that may themselves be impaired by chronic drug abuse, leading to further dysexecutive control over cognition and behavior. 相似文献
23.
A sample of 172 male clergy within the Church of England completed the Eysenck Personality Questionnaire together with an index of charismatic experience. The data demonstrate that charismatic experience is positively associated with extroversion, but related to neither neuroticism nor psychoticism. 相似文献
24.
A growing body of research has suggested that the experience of injustice, psychological contract breach, or unfairness can adversely impact an employee's health. We conducted a meta-analysis to examine the effects of unfairness perceptions on health, examining types of fairness and methodological characteristics as moderators. Results suggested that perceptions of unfairness were associated with indicators of physical and mental health. Furthermore, psychological contract breach contributed to the prediction of strain-related indicators of health above and beyond that accounted for by injustice alone. 相似文献
25.
Camille N Pironti VA Dodds CM Aitken MR Robbins TW Clark L 《Cognitive, affective & behavioral neuroscience》2010,10(4):460-469
Regret and relief are complex emotional states associated with the counterfactual processing of nonobtained outcomes in a
decision-making situation. In the “actor effect,” a sense of agency and personal responsibility is thought to heighten these
emotions. Using fMRI, we scanned volunteers (n = 22) as they played a task involving choices between two wheel-of-fortune gambles. We examined how neural responses to counterfactual
outcomes were modulated by giving subjects the opportunity to change their minds, as a manipulation of personal responsibility.
Satisfaction ratings to the outcomes were highly sensitive to the difference between the obtained and nonobtained outcome,
and ratings following losses were lower on trials with the opportunity to change one’s mind. Outcome-related activity in the
striatum and orbitofrontal cortex was positively related to the satisfaction ratings. The striatal response was modulated
by the agency manipulation: Following losses, the striatal signal was significantly lower when the subject had the opportunity
to change his/her mind. These results support the involvement of frontostriatal mechanisms in counterfactual thinking and
highlight the sensitivity of the striatum to the effects of personal responsibility. 相似文献
26.
Gerold E Robbins 《Journal of research in personality》1975,9(1):74-84
Subjects were assigned the task of forming an impression of another person with information being gathered from two conflicting sources. One half were given a positive first impression, and one half were given a negative first impression before allowing them to select additional information. Final ratings were made when Ss indicated that they had taken sufficient information. Dogmatic Ss took in less information before passing “final judgment,” gave more extreme stability ratings, expressed greater liking for their agreed-with source, and showed a trend toward a preference for explaining away impression-discrepant information rather than to withhold judgment. 相似文献
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29.
Monahan J Steadman HJ Appelbaum PS Grisso T Mulvey EP Roth LH Robbins PC Banks S Silver E 《Behavioral sciences & the law》2006,24(6):721-730
The Classification of Violence Risk (COVR) is an interactive software program designed to estimate the risk that a person hospitalized for mental disorder will be violent to others. The software leads the evaluator through a chart review and a brief interview with the patient. At the end of this interview, the software generates a report that contains a statistically valid estimate of the patient's violence risk-ranging from a 1% to a 76% likelihood of violence-including the confidence interval for that estimate, and a list of the risk factors that the program took into account to produce the estimate. In this article, the development of the COVR software is described and several issues that arise in its administration are discussed. 相似文献
30.
Paul R. Robbins 《Journal of personality assessment》2013,95(4):366-370
52 heroin addicts were given a form of the Semantic Differential asking for their perceptions of heroin, methadone, LSD, amphetamines and marijuana. Marijuana was viewed most favorably, heroin least favorably. Views of heroin and marijuana were positively correlated; but not so heroin and methadone. There was a positive relationship between length of time on methadone maintenance and the potency score for heroin. 相似文献