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71.
We examined the association between scales measuring physical anhedonia, social anhedonia, and perceptual aberration and premorbid functioning, clinical state, and current level of adjustment in 91 psychotic subjects. The patients were examined at the onset of their first psychotic episode and again 18 months later. For patients with schizophrenia, anhedonia was significantly related to premorbid functioning. No association was found between the scales and clinical state or level of adjustment at intake or follow-up. In affective disorder patients, no correlation was found between premorbid functioning (a stable characteristic) and scale scores, but moderately large correlations emerged between the scales and clinical state and level of adjustment at both assessment times. These results suggest that schizophrenic and affective disorder patients endorse items on these scales for different reasons. We hypothesize that for patients with schizophrenia, the scales assess enduring personality characteristics, whereas for the affective disorder patients, they assess clinical condition at the time of testing. 相似文献
72.
South SC Krueger RF Johnson W Iacono WG 《Journal of personality and social psychology》2008,94(5):899-912
In contrast with early theories of socialization that emphasized the role of parents in shaping their children's personalities, recent empirical evidence suggests an evocative relationship between adolescent personality traits and the quality of the parent-adolescent relationship. Research using behavior genetic methods suggests that the association between personality and parenting is genetically mediated, such that the genetic effects on adolescent personality traits overlap with the genetic effects on parenting behavior. In the current study, the authors examined whether the etiology of this relationship might change depending on the adolescent's personality. Biometrical moderation models were used to test for gene- environment interaction and correlation between personality traits and measures of conflict, regard, and involvement with parents in a sample of 2,452 adolescents (M age = 17.79 years). They found significant moderation of both positive and negative qualities of the parent-adolescent relationship, such that the genetic and environmental variance in relationship quality varied as functions of the adolescent's levels of personality. These findings support the importance of adolescent personality in the development of the quality of the parent-adolescent relationship. 相似文献
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74.
Sequence learning under dual-task conditions: alternatives to a resource-based account 总被引:2,自引:0,他引:2
In two experiments with the serial reaction-time task, participants were presented with deterministic or probabilistic sequences under single- or dual-task conditions. Experiment 1 showed that learning of a probabilistic structure was not impaired over a first session by performing a counting task, but that such an interference arose over a second session, when the knowledge was tested under single-task conditions. In contrast, the effects of the secondary task arose earlier for participants exposed to deterministic sequences. This difference between deterministic and probabilistic sequences disappeared in Experiment 2, where the counting task was performed on tones associated to the locations. Comparisons between sessions indicated that the secondary task affected not only the expression but also the acquisition of sequence learning, and that greater interference was observed in those conditions that yielded more explicit knowledge. These results suggest that the effects of a dual task on the measures of implicit sequence learning may be partly due to the intrusion of explicit knowledge and partly due to the disruption of the sequence produced by the inclusion of random events. 相似文献
75.
Albert Pepitone A. Maderna E. Caporicci E. Tiberi G. Iacono G. Di Majo M. Perfetto A. Asprea G. Villone G. Fua 《International journal of psychology》1970,5(1):1-10
Une série d'études inter-culturelles a été consacrée à L'effet de L'équité sur le comportement de choix, dans un jeu de type Dilemme du Prisonnier. Les résultats antérieurement collectés montrent que les sujets américains choisissent de maximiser leur gain en fonction de leur niveau d'estime de soi: une distribution des récompenses en fonction du mérite semble correspondre à un besoin d'équité; mais les sujets italiens qui ont une faible estime d'eux-mêmes tendent à maximiser plus fréquemment leur gain: ils ont tendance à être “ ego-défensifs”. Dans les études qui sont présentées ici, une récompense initiale est donnée à L'un des deux partenaires, sur la base d'un “test” d'aptitude à la prédiction (Distribution Juste), ou bien la récompense est donnée arbitrairement, sans tenir compre du test (Distribution Injuste). Les sujets doivent ensuite faire une serie de cinquante choix. Les choix des sujets américains renètent un besoin d'équité dans la condition Distribution Injuste, le sujet qui a reçu une récompense choisit moins souvent de maximiser ses gains que le sujet qui n'a pas reçu de récompense; dans la condition Distribution Juste, les sujets maintiennent L'inégalité créée par la récompense initiale. Sur L'ensemble des trois échantillons italiens qui ont été étudiés séparément, on observe une tendance à minimiser L'injustice dans la condition Distribution Injuste; mais dans la condition Distribution Juste, on observe un effet de défense du moi. Différentes interprétations théoriques des résultats sont discutées. 相似文献
76.
77.
This paper contains five observations concerning the intended meaning of the intuitionistic logical constants: (1) if the explanations of this meaning are to be based on a non-decidable concept, that concept should not be that of `proof"; (2) Kreisel"s explanations using extra clauses can be significantly simplified; (3) the impredicativity of the definition of can be easily and safely ameliorated; (4) the definition of in terms of `proofs from premises" results in a loss of the inductive character of the definitions of and and (5) the same occurs with the definition of in terms of `proofs with free variables". 相似文献
78.
This study attempted to extend Shedler and Block's (1990) influential study, which found that adolescent drug experimenters had the healthiest personality functioning compared to abstainers and frequent users. Using a prospective design, we examined the relationship between antecedent and concurrent personality and age-18 substance use in a community sample of 1,298 twins (96% Caucasian, 49% male). Personality measures at ages 11 and 18 assessed positive emotionality (agentic and communal), negative emotionality, and constraint. Substance use groups-abstainers, experimenters, and problem users-were created at age 18. Age-18 substance use groups differed in age-11 and age-18 constraint such that problem users were lower than experimenters, who were lower than abstainers. Age-18 substance use groups did not differ in age-18 positive emotionality. However, abstainers were significantly lower than experimenters in communal positive emotionality, whereas female abstainers scored higher in agentic positive emotionality than female experimenters, who scored higher than female problem users. Experimenters were significantly lower in negative emotionality than problem users. Our findings are inconsistent with the notion that experimenters had the healthiest personality functioning and instead suggest different strengths and weaknesses for each group. Future studies should examine agentic and communal positive emotionality separately. 相似文献
79.
80.
Brian M. Hicks Wendy Johnson C. Emily Durbin Daniel M. Blonigen William G. Iacono Matt McGue 《Journal of abnormal child psychology》2014,42(5):845-859
Utilizing the large, longitudinal Minnesota Twin Family Study (N?=?2510; 96 % European American ancestry), we examined the influence of several person-environment transactions on adolescent substance abuse. We focused on the two childhood personality traits found to be most predictive of substance abuse in this sample—socialization (willingness to follow rules and endorse conventional values) and boldness (social engagement and assurance, stress resilience, thrill seeking)—and the environmental variables of antisocial and prosocial peers, academic engagement, parent–child relationship quality, and stressful life events. Path analysis revealed that low socialization had a selection effect for each environmental risk factor, that is, socialization at age 11 predicted environmental risk at age 14, after controlling for the stability of the environmental variables from ages 11 to 14. Antisocial peers and academic engagement at age 14 then mediated some of the risk of low socialization on substance abuse at age 17, but the majority of risk for substance abuse was accounted for by the stability of socialization from age 11 to 14. Boldness at age 11 also increased risk for substance abuse, but did so primarily via a direct effect. The findings help to parse the nature of person-environment transactions across multiple personality traits and contextual risk factors that contribute to adolescent substance abuse. 相似文献