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Waldman ID Nigg JT Gizer IR Park L Rappley MD Friderici K 《Cognitive, affective & behavioral neuroscience》2006,6(1):18-30
There is resurgent interest in the psychiatric literature in endophenotypes, variables thought to more strongly reflect the
effects of candidate genes than do manifest disorders. In a sample of 176 children with attention deficit hyperactivity disorder
(ADHD) and 52 of their siblings, we examined the validity of several putative endophenotypes for ADHD that represent commonly
used clinical measures of multiple cognitive/neuropsychological domains of executive functions (EFs). We review their distributional
normality, their relations to ADHD symptoms in probands and unaffected siblings relative to nonADHD controls, and their correlation
in siblings. We also tested the EF measures’ associations with the ADRA2A gene and whether they mediated or moderated the associations between ADHD and ADRA2A. Several EF measures showed association with ADRA2A, as well as moderation, but not mediation, of its association with ADHD. Implications of the results for evaluating the validity
and utility of putative endophenotype measures and for finding candidate gene effects on ADHD are discussed. 相似文献
23.
Acute alcohol intoxication effects on memory were examined using a recollection-based word recognition memory task and a repetition priming task of memory for the same information without explicit reference to the study context. Memory cues were equivalent across tasks; encoding was manipulated by varying the frequency of occurrence (FOC) of words in the study lists. Twenty-two female and male social drinkers (age 21-24 years) completed equivalent versions of the memory tasks in two counterbalanced sessions (alcohol challenge, no-alcohol). Alcohol and the FOC manipulation affected recollection-based memory processing, but not repetition priming. Results supported alcohol's dissociative effects on memory systems. 相似文献
24.
How a general factor of personality (GFP) correlated with employment screening measures in an applied setting was examined. Participants were 540 adult insurance sales job applicants who completed scales from two personality measures, the five scales from the Survey of Work Styles (SWS), an intelligence measure, and a social desirability scale. A joint factor analysis of the personality questionnaires produced four first order factors. A single GFP was also extracted. Strong correlations were found between some of the personality factors and the SWS scales. Strong significant correlations were found between the GFP and three of the four personality factors with social desirability. Neither the GFP nor the personality factors correlated significantly with cognitive abilities. 相似文献
25.
Julie Aitken Schermer Rod A. Martin Nicholas G. Martin Michael Lynskey Philip A. Vernon 《Personality and individual differences》2013
The present study examined the phenotypic, genetic, and environmental correlations between a general factor of personality (GFP) and four humor styles: affiliative, self-enhancing, aggressive, and self-defeating. Participants were 571 same-sex adult twin pairs. Individuals completed the Humor Styles Questionnaire (HSQ) and a short form of the NEO personality scale (from which the GFP was extracted). The GFP was found to be heritable with an estimated value of .31. At the phenotypic level, the GFP was found to correlate significantly with the HSQ scales; positively with affiliative and self-enhancing, and negatively with aggressive and self-defeating. Three of the four phenotypic correlations were found to be attributable to correlated genetic factors, suggesting that these dimensions of humor styles and the GFP may have a common genetic factor. 相似文献
26.
Within multiple social roles, such as careers and personal relationships, psychologists are encouraged to maintain their authenticity. Although the concept of authenticity has a lengthy history in the philosophy and literary fields, only in the last decade have researchers begun empirically studying this unique, yet vague, concept. This study sought to explore and understand what experiences, issues, and concerns psychologists encounter in their efforts to live authentically. A purposeful sample consisted of 17 psychologists, who were individually interviewed. Utilizing a qualitative research design, 328 significant statements were extracted and grouped together, resulting in five emergent themes specifically related to personal and social, nontherapeutic contexts. Participants described how their psychological-mindedness adds to complexity of separating the person from the therapist during encounters with others. They believed that self-exploration, self-awareness, and self-acceptance were important in attaining one's authenticity. Concepts of culture and gender influences, psychological-mindedness, and consistency in social roles were discussed as related to authenticity. Last, participants indicated feeling the most authentic with close friendships, significant others, and family members, and less authentic in casual and/or collegial-professional roles. 相似文献
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Marsha E. Boveja 《Journal of multicultural counseling and development》1998,26(2):110-119
The purpose of this study is to examine the relationship between perceived parenting styles and urban adolescents' learning and studying strategies. The results revealed that those adolescents who perceived their parents as being authoritative tended to engage in more effective learning and study strategies. Implications are discussed for counselors and teachers using this information as a fostering tool in their work with urban adolescents. 相似文献
30.
Grover J Whitehurst Marsha Ironsmith Michael goldfein 《Journal of experimental child psychology》1974,17(2):288-302
Six 4- to 5-yr-old subjects were exposed to five sessions in which an adult model used passive sentences to describe a set of modeling stimuli. Probe stimuli, which the subjects were asked to describe without benefit of modeling and without selective reinforcement were interspersed among modeling stimuli. A matched group of control subjects received probletrials but no modeling trials. Both groups of subjects were subsequently tested on their ability to comprehend active and passive sentence forms. Every subject in the experimental group produced passive sentences on probe trials even though there was considerable variability in the number of passives produced. No control subject produced passives. The modeling procedure increased the comprehension scores of the experimental group above those of the control group though the scores of both groups were above chance. The results were contrasted with earlier studies in which modeling was ineffective in producing passive usage and in which comprehension of the passive was not demonstrated by even older children. 相似文献