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191.
Modifications were made to Kristofferson’s (1976) response-stimulus synchronization procedure which resulted in a further reduction in the estimate of minimum S-R latency variance. Minimum variances near 50 msec2 were obtained whether mean latency was 310 or 550 msec. Within this range, latency distributions were the same, symmetrical and sharp-peaked, and unlike typical RT. All responses fell within a 50-msec time window. This independence of mean latency and latency variance was present throughout acquisition. A special technique allowed isolation of the controlling stimulus for synchronization timing, and showed that subjects were able to transfer control to another modality with no loss of performance. Results are discussed in terms of support for the notion of nonvariable, internally timed delays which can be inserted in the S-R chain. These delays are easily adjustable, but, once set, are deterministic. The role of feedback in acquisition and maintenance of synchronization performance is also examined. 相似文献
192.
Using a visual search paradigm, we investigated how age affected attentional bias to emotional facial expressions. In Experiments 1 and 2, participants searched for a discrepant facial expression in a matrix of otherwise homogeneous faces. Both younger and older adults showed a more effective search when the discrepant face was angry rather than happy or neutral. However, when the angry faces served as non-target distractors, younger adults' search was less effective than happy or neutral distractor conditions. In contrast, older adults showed a more efficient search with angry distractors than happy or neutral distractors, indicating that older adults were better able to inhibit angry facial expressions. In Experiment 3, we found that even a top-down search goal could not override the angry face superiority effect in guiding attention. In addition, RT distribution analyses supported that both younger and older adults performed the top-down angry face search qualitatively differently from the top-down happy face search. The current research indicates that threat face processing involves automatic attentional shift and a controlled attentional process. The current results suggest that age only influenced the controlled attentional process. 相似文献
193.
Chen SX Hui NH Bond MH Sit AY Wong S Chow VS Lun VM Law RW 《The Journal of social psychology》2006,146(2):223-244
Researchers have extended the literature on strategies of gaining compliance with a request to incorporate cultural variations into the analytic framework. In the present investigation, the authors sought to go beyond previous studies of the factors increasing compliance rates by reexamining how researchers conceptualize and measure personal, social, and cultural influences on compliance behavior in the United States, Poland, and Hong Kong. The authors found that different levels of compliance were affected by culture, principles of influence, and the individual's personal orientation of idiocentrism/allocentrism (I/A). In the present study, the authors extended previous cross-cultural work by decomposing the I/A into 2 separate individual difference variables: normative perceptions and evaluative perceptions. The interaction of person and situation on compliance showed the power of situational demands and the strength of different aspects of personal collectivism. Different patterns of compliance at the culture level revealed the importance of culture in shaping this behavioral tendency. Thus, the authors' integration of personal, social, and cultural influences provided an interactive model to help researchers explain compliance more comprehensively. 相似文献
194.
Metamemory refers to knowledge about one's memory capabilities and strategies that can aid memory, as well as the processes
involved in memory self-monitoring. Although metamemory has been studied in cognitive psychology for several decades, there
have been fewer studies investigating the neuropsychology of metamemory. In recent years, a growing number of studies of neurological
patient groups have been conducted in order to investigate the neural correlates of metamemory. In this review, we examine
the neuropsychological evidence that the frontal lobes are critically involved in monitoring and control processes, which
are the central components of metamemory. The following conclusions are drawn from this literature: (1) There is a strong
correlation between indices of frontal lobe function or structural integrity and metamemory accuracy (2) The combination of
frontal lobe dysfunction and poor memory severely impairs metamemorial processes (3) Metamemory tasks vary in subject performance
levels, and quite likely, in the underlying processes these different tasks measure, and (4) Metamemory, as measured by experimental
tasks, may dissociate from basic memory retrieval processes and from global judgments of memory. 相似文献
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Data are reported relating various demographic and intelligence attributes of socially disadvantaged clients to successful or unsuccessful outcome of a comprehensive vocational assessment and guidance program. Mothers of illegitimate children tended to complete the assessment program but to remain unemployed. Age was positively related to success, whereas education was unrelated. Verbal and performance IQ were positively related to outcome for females. Successful Caucasian males were higher in verbal IQ than successful male Caucasians, but no difference was found for Negro males. Performance IQ was nonpredictive of outcome for both white and Negro males. Higher verbal than performance IQ was positively correlated with success for male Caucasians. 相似文献
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A sample of community-based older adults were interviewed and given a questionnaire in order to examine the effects of stress, social support, and locus of control on two measures of health: the number of actual symptoms and self-ratings of health. Subjects were 83% white, 63% female, and represented middle- and working-class backgrounds. All variables showed association with symptom levels, and for men, both locus of control and friend support networks predicted subjective ratings of health even after controlling for the level of symptomatology. Moreover, an internal locus of control was found to buffer the deleterious effect of symptoms of physical illness on self-rated health. The results suggest that a supportive network and a sense of control build confidence in one's capacity to cope both with external stressors and with sickness itself, but these factors are stronger influences for males than for females. 相似文献