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101.
Observational conditioning of snake fear in rhesus monkeys 总被引:5,自引:0,他引:5
102.
Four sex-role instruments were administered to a group of 281 graduate and undergraduate students at an urban university. Concurrent validity was examined through the use of correlational and factor-analytic techniques. Seven problems in interpretation of the categorizations made by the several instruments were identified: (1) item homogeneity of individual scales; (2) convergence of corresponding scales and divergence of scales from their complements; (3) multifactoriality; (4) factor complexity; (5) distribution of content across instruments; (6) interaction between factor complexity and content balance; and (7) correspondence of classifications of subjects across instruments. 相似文献
103.
Norman D. Cook 《Brain and language》1984,23(1):116-125
Previous theories concerning the function of the corpus callosum have included a “topographic” column-to-column excitatory theory and a diffuse “regional” inhibitory theory. Here it is shown that a topographic inhibitory model, in conjunction with a postulate concerning surround inhibition among cortical columns, produces complementary patterns of cortical column firing which, although qualitatively different, do not imply quantitative metabolic asymmetries. The cognitive implications of such homotopic inhibition are discussed. 相似文献
104.
105.
M Jitsumori A A Wright R G Cook 《Journal of experimental psychology. Animal behavior processes》1988,14(2):146-154
Serial-probe-recognition (SPR) performance by 2 monkeys deteriorated over several months of training. Three hundred and twenty different items were presented without repetition within a session (trial unique) but were repeated between sessions. The cause of the deterioration was identified as proactive interference (PI) due to repetitive use of items from day to day. Introduction of novel stimuli across days improved performance from 63% to 82% correct (Experiment 1). Tests with only probe items and no list items (Experiment 2) revealed that the monkeys were using a familiar/novel response strategy in combination with a relational strategy (relating the probe item to the list items) to further improve their SPR performance. Intermixing familiar baseline trials and novel transfer trials within a session (Experiment 3) encouraged the subjects to use a relational strategy, and it improved performance on baseline trials as well as on transfer trials. Possible qualitative similarity between the relational strategy and the familiar/novel response strategy is discussed along with theoretical implications of these findings for experiments which have used small number of repeating stimuli within a session. 相似文献
106.
Observational conditioning of fear to fear-relevant versus fear-irrelevant stimuli in rhesus monkeys 总被引:6,自引:0,他引:6
Two experiments examined whether superior observational conditioning of fear occurs in observer rhesus monkeys that watch model monkeys exhibit an intense fear of fear-relevant, as compared with fear-irrelevant, stimuli. In both experiments, videotapes of model monkeys behaving fearfully were spliced so that it appeared that the models were reacting fearfully either to fear-relevant stimuli (toy snakes or a toy crocodile), or to fear-irrelevant stimuli (flowers or a toy rabbit). Observer groups watched one of four kinds of videotapes for 12 sessions. Results indicated that observers acquired a fear of fear-relevant stimuli (toy snakes and toy crocodile), but not of fear-irrelevant stimuli (flowers and toy rabbit). Implications of the present results for the preparedness theory of phobias are discussed. 相似文献
107.
Expressed emotion and reciprocal affective relationships in families of disturbed adolescents 总被引:1,自引:0,他引:1
Relatives' expressed emotion (EE) is a known risk factor for relapse among recovering psychiatric patients. Recent research has focused on the behavioral correlates of EE, seeking better understanding of the family processes associated with this important variable. The present study used sequence analysis to explore interactions of high-EE and low-EE parent-child dyads in a sample of disturbed adolescents. High-EE mother-child interactions were characterized by bidirectional influence, and, in contrast to adolescents in low-EE dyads, adolescents in high-EE dyads had an oppositional style of responding. In Low-EE mother-child interactions, the adolescents showed more temporal consistency (stability) of affect than their high-EE counterparts. Overall, the results suggest that high-EE mother-child dyads constitute more tightly joined emotional systems than low-EE dyads. Consequently, interventions designed to reduce this connectedness might also reduce the risk of adolescent psychiatric problems. 相似文献
108.
A. N. McLaughlin Cook 《Current psychology (New Brunswick, N.J.)》1982,2(4):261-275
This paper reports an investigation of the mnemonic value of reading a summary before a text. Subjects (194 sixth-form students) read one of two folk-tales, either in isolation or preceded by a ‘List’ or an ‘Overview’ type of summary. Free recall of the story was then tested. Overall, both types of summary produced a significant increase in recall, although further analyses showed that their effects were located primarily in the recall of the latter parts of the stories. It is suggested that future work could usefully extend the analysis to a consideration of longer, and less well structured texts. 相似文献
109.
A. N. Mclaughlin Cook 《Current psychology (New Brunswick, N.J.)》1982,2(1-3):261-275
This paper reports an investigation of the mnemonic value of reading a summary before a text. Subjects (194 sixth-form students) read one of two folk-tales, either in isolation or preceded by a ‘List’ or an ‘Overview’ type of summary. Free recall of the story was then tested. Overall, both types of summary produced a significant increase in recall, although further analyses showed that their effects were located primarily in the recall of the latter parts of the stories. It is suggested that future work could usefully extend the analysis to a consideration of longer, and less well structured texts. 相似文献
110.