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251.
In a previous study on Evaluative Conditioning it was found that unlike signal-learning, evaluative learning is resistant to extinction. In the present experiment we tried to replicate and corroborate this finding. In addition, we investigated the effectiveness of a counterconditioning procedure to alter acquired evaluative value. On a within-subject base (n = 30), it was found that the mere contingent presentation of neutral with (dis)liked pictures of human faces was sufficient to change the affective-evaluative tone of the originally neutral stimuli in (negative) positive direction. Next, we replicated the finding that an extinction procedure does not have any influence on the acquired evaluative value of the originally neutral stimuli, and this even in subjects fully aware of the extinction presentations. We demonstrated the effectiveness of a counterconditioning procedure to alter acquired evaluative value, and in addition, found some evidence that awareness of the counterconditioning manipulations is not a prerequisite for its effectiveness. The theoretical consequences of these findings are phrased in terms of a fundamental distinction between signal-learning and evaluative learning, and some important implications for the behavioral treatment of affective-emotional disorders are suggested. 相似文献
252.
This study describes a human electrodermal conditioning experiment involving processes of sensory preconditioning and UCS inflation. In stage 1 of the experiment Ss received six presentations of a CS+ paired with an innocuous 65 dB tone (UCS) and six presentations of an unpaired CS-. In stage 2, Ss in the experimental group had the aversiveness of the UCS inflated as the intensity of the 65 dB tone was increased to 115 dB. In stage 3, Ss were given test presentations of CS+ and CS-. A differential CR to CS+ was found only in stage 3 of the experiment and only in Ss who had experienced the UCS inflation procedure. These results suggest that (i) sensory preconditioning had occurred in stage 1 despite the failure to observe a differential CR in this stage, and (ii) the differential CR observed in stage 3 was mediated by an internal representation of the UCS whose aversiveness had been inflated in stage 2. As well as confirming that processes of sensory preconditioning and UCS inflation can be observed in human as well as animal Ss, these findings have important implications for contemporary conditioning models of clinical fears. In particular, they suggest that a contemporary conditioning model of acquired fears is not bound by the need to discover contiguous stimulus-trauma experiences in the histories of clinical phobias since, in humans at least, processes of stimulus association and UCS revaluation appear to be relatively independent. 相似文献
253.
Interparental conflict and adolescent problem behavior: an examination of mechanisms 总被引:1,自引:0,他引:1
The purpose of the present study was to examine several competing hypotheses which have been utilized to explain the negative relationship between interparental conflict and child/adolescent problems. These mechanisms of operation have included modelling, genetic transmission, disrupted parenting, the role of perceptual/appraisal processes of the conflict, and an inhibition hypothesis. One hundred and forty-two young adolescents and their mothers served as subjects. Eighty were from intact families and 62 from recently divorced families. Data were collected from the perspective of the adolescent, mother, behavioral observer, and social studies teacher. The results indicated that intact and divorced samples had to be considered separately as different pathways contributed to adolescent behavior problems in the two samples. For externalizing problems, a direct path between interparental conflict and problem behavior existed for the divorced sample whereas an indirect path through the adolescent's perceptions of the conflict existed for the intact sample. The different context in which the interparental conflict occurred for the two samples was offered as an explanation of this difference. For internalizing problems a significant direct path existed between conflict and problem behavior for both samples; however, the indirect paths through the adolescent's perceptions and through poor parenting skills contributed only for the divorced sample. The results suggest that various mechanisms appear to operate in influencing how interparental conflict influences behavior problems of young adolescents. Both the type of problem examined and the marital status of the parents appear important in determining the relative impact of the mechanisms. Implications for the behavior therapist are noted. 相似文献
254.
Y Takano 《Cognition》1989,31(2):141-162
Bloom (1981) tested a weak version of the linguistic relativity hypothesis (i.e., "Language affects thinking though it does not determine thinking") in a series of cross-cultural experiments. According to Bloom, Chinese lacks two linguistic devices that are present in English and supposed to be critical in performing theoretical thinking. It was found that the Chinese subjects were outperformed by American counterparts in all the tests designed to assess the ability of theoretical thinking. The results were taken as evidence for the weak version of the linguistic relativity hypothesis. A methodological consideration has revealed, however, that all of his experiments except one are uninterpretable because of the lack of necessary control conditions. In addition, three experiments in the present study have demonstrated that the findings in Bloom's sole interpretable experiment were artifacts due to a methodological flaw. Further theoretical considerations reveal the inadequacy of Bloom's basic methodology and the limitation in the effects of linguistic relativity that may be possible at least theoretically. 相似文献
255.
Issues related to infant intersensory functioning are reviewed. The argument is offered that limitations of sensory inputs during early stages of development are necessary and provide structure and organization which determine behavioural characteristics at later stages. It is also suggested that infant organisms respond to the intensity of stimulation rather than organizational characteristics and that this is responsible for the form of sensory equivalence apparent during early development. A scheme for the investigation of sources of intersensory organization is presented which involves a prospective analysis of how consideration of the times of onset of sensory functions helps us to understand intra- and intersensory development. The advantages of this experimental approach are outlined. 相似文献
256.
Subjects searched for a chromatic target among coloured background items. With low target-background chromatic similarity, response latencies remained uniformly short whether the target was present or not and whether the items were chromatically homogeneous or not. Latencies increased with increases in target-background similarity and were longest with heterogeneous backgrounds, with which the effects of trial type also became manifest. We employed Treisman's model of visual search to account for these findings. In particular, we suggest that similarity increases forced a shift from a preattentive to an attentive search, the latter being importantly shaped by the background's level of chromatic variance. 相似文献
257.
B G Hanson 《Family process》1989,28(3):281-289
This article presents some general theoretical concepts that can be used to consider processes of reality construction in interpersonal contexts. I developed a model of family context that taps affective dimensions of reality construction and used this model to explore these processes as highlighted by the labeling of symptoms of senile dementia. Ethnographic observations of 45 families with aged members were used to sketch a dichotomous typology of family-context patterns that promote symptom identification versus patterns that do not. The model suggests that the categorization of behavior as symptomatic or normal in context may be related to the extent to which reality construction processes are shared among members. 相似文献
258.
Prior discussion of hypothesizing as a session "guideline" has not fully clarified the derivation of hypotheses. Reviewing relevant philosophy of science literature, the authors develop the notions of evidence and evidence-gathering in systemic family therapy. The authors claim evidence-gathering and hypothesizing are interdependent, reciprocal elements of scientific understanding. The structure of evidence is described along with practical and qualitative rules for collecting and using evidence. This model is applied to a case example illustrating the logic of clinical process. Implications are discussed for family therapy training and supervision. 相似文献
259.
Dependency, self-criticism, and depressive attributional style 总被引:1,自引:0,他引:1
Dependency and self-criticism have been proposed as independent factors in depression. Investigated whether depressive individuals characterized by dependency and self-criticism, respectively, differ with regard to internality of causal attributions for negative events. Sixty psychiatric outpatients completed the Depressive Experiences Questionnaire, the Beck Depression Inventory, the semantic differential, and the Attributional Style Questionnaire. Dependency and self-criticism correlated positively with internality and with each other (p less than .0001). Findings did not support the specificity of dependency and self-criticism as subtypes of depression. 相似文献
260.
679 Egyptian boys and 696 girls completed the Junior Eysenck Personality Questionnaire, translated into Arabic. Factor comparisons were moderately high for extraversion and social desirability but weak for neuroticism and psychoticism. Suitable item substitution produced a scoring key resulting in adequate reliabilities with the exception of a somewhat low reliability for the boys on extraversion and low reliabilities on psychoticism for both sexes. Sex differences on means of the dimensions were as usual, boys scoring higher than girls on extraversion and psychoticism, but lower on neuroticism and social desirability. Moreover, on comparing Egyptian with English means, using scales of items in common only, the English boys and girls scored higher than their Egyptian counterparts on extraversion but significantly lower on social desirability. British boys scored higher on psychoticism than did Egyptian boys but British girls scored lower than Egyptian girls. 相似文献