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81.
The authors demonstrated individual differences in inhibited behavior and withdrawal responses of laboratory-born rhesus monkeys when initially exposed to a snake. Most monkeys displayed a small significant increase in their behavioral inhibition in the presence of a snake. A few monkeys had marked responses, and some actively withdrew. Although the responses of the most extreme laboratory-born monkeys were comparable to feral-born monkeys, the responses of the laboratory-born monkeys rapidly habituated. The individual differences in the responses of na?ve monkeys likely reflect a continuum from orienting to wariness to fear. A neurobiological model is presented that addresses potential mechanisms underlying these individual differences, their relation to fear, and how they may predispose to phobia development. 相似文献
82.
The authors tested an attribution-affect model of schizophrenic relapse attending to the role of families' positive affect (warmth) and negative affect (criticism). Coders listened to interviews of 40 family members taken from C. E. Vaughn, K. S. Synder, S. Jones, W. B. Freeman, and I. R. Falloon (1984) and rated their attributions of controllability for the symptoms and behaviors of their relatives with schizophrenia. For family members not designated as emotionally overinvolved, perceptions that their ill relatives' symptoms and behaviors were under the patients' control were related to family members' warmth and criticism and to patients' clinical outcomes. Of the affective reactions, only criticism predicted outcome. In addition, patients' use of street drugs was related to attributions, criticism, and outcome. Together these findings suggest that families' attributions and criticism are important in understanding the relationship between family factors and course of illness. 相似文献
83.
Nelson Cowan J. Scott Saults Lara D. Nugent Emily M. Elliott 《International journal of psychology》1999,34(5-6):353-358
It is not clear from the literature why, as children develop, there are important increases in memory span, the number of just-presented items that the participant can repeat in the correct serial order. To understand this, some recent results on capacity limits and processing rates were re-analyzed. We first describe results using a conventional measure of performance in immediate memory tasks that is affected by the list length (proportion correct). Next we describe results using a less conventional measure (number correct) that is unaffected by list length under circumstances in which attention to the list during its presentation is curtailed. This measure can estimate an individual's limited-capacity storage ability. Last, we examine measures of spoken response timing that do and do not change with list length. We show that unconventional measures that do not change with list length, but do change with development, are especially useful in assessing basic changes in information processing parameters, including increases in memory capacity and processing speed. 相似文献
84.
D L Nelson C L McEvoy T A Schreiber 《Journal of experimental psychology. Learning, memory, and cognition》1990,16(1):31-41
Studying a familiar word activates its associates in long-term memory. In the present experiments we manipulated the number of associates activated by words studied in the presence of unrelated context words, meaningfully related context words, or in the absence of modifying context words. Memory was tested by either cued or free recall. The results showed that the number of directly activated associates can facilitate, have no effect, or disrupt recall for studied words. The direction and magnitude of the effects of number of activated associates is shown to be determined by the encoding/retrieval context. Implications for the distinction between episodic and semantic memory are discussed. 相似文献
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Affording Emerging Adulthood: Parental Financial Assistance of their College-Aged Children 总被引:1,自引:0,他引:1
Laura M. Padilla-Walker Larry J. Nelson Jason S. Carroll 《Journal of Adult Development》2012,19(1):50-58
The purpose of this study was to examine parents’ attitudes about and patterns of providing financial assistance to their
children during college, and how varying levels of parental financial support were related to children’s beliefs (e.g., perceptions
of adulthood), behaviors (e.g., work hours, drinking, and drug use), and identity development. The sample consisted of 402
undergraduate students (62% women) recruited from four college sites across the United States (M age = 19.89), and one of their parents (310 mothers and 92 fathers). Using cluster analysis, results suggested four distinct
approaches to parental financial involvement and found that emerging adults’ beliefs, behaviors, and identity development
differed as a function of parents’ cluster membership. Discussion focuses on implications for emerging adult children whose
parents endorse varying levels of financial involvement. 相似文献
90.
SM Nelson KB McDermott SE Petersen 《Trends in cognitive sciences》2012,16(8):399-400; author reply 400-1