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81.
Ethological recording procedures measured collateral behavior in pigeons whose key-pecking performance was suppressed during a tone that ended with unavoidable electric shock. Independent recordings of gross behavior were made by two observers throughout 60-sec intervals immediately before, during, and after tone presentation. Results indicated significant reductions in the frequency of collateral movements and an increase in the time between successive movements during tone presentations. These effects were observed in all subjects, despite differences in the sequential patterns of behavior. Only partial recovery of the behavior evidenced before tone presentation was found during a 60-sec interval following shock. It was concluded that conditioned suppression procedures caused the bird to “freeze” during tone presentation and in this fashion produced a general inhibitory effect on ongoing overt activity, including key pecking. 相似文献
82.
Three models of clinical judgment 总被引:3,自引:0,他引:3
83.
Paul J. Hoffman 《Psychometrika》1958,23(1):85-92
Derivations are presented relating the length of a test to its weight in a composite. Tests of varying length are constructed so that their weights will be of predetermined magnitudes, and the results compared with expectations. Weighting schemes involving standard deviations of raw scores and of true scores are compared. An important secondary derivation is presented from which it is possible to estimate test reliability knowing only the relative length of a test, its shortened form, and the standard deviation of each. 相似文献
84.
Ginger A. Hoffman 《Philosophical Psychology》2016,29(8):1160-1174
The thesis that mental states extend beyond the skull, otherwise known as the extended mind thesis (ExM), has attracted considerable philosophical attention and support. It has also been accused of lacking practical import. At the same time, the field of psychiatry has remained largely unacquainted with ExM, tending to rely instead upon what ExM proponents would consider to be outdated models of the mind. ExM and psychiatry, therefore, have much to offer one another, but the connection between the two has remained largely unexplored. Here, I consider what implications ExM may have for psychiatry and, in so doing, reveal how psychiatry may lend practical import to ExM. First, I detail the possibility of the extension of one mental state relevant to psychiatry. I augment this example by surveying other possibilities for extension in the context of psychiatric diagnoses. I then consider ways in which such extensions might alter psychiatric diagnosis and treatment. Overall, I argue that recognition of the truth of ExM could alter the diagnostic status of certain individuals by correcting both false positives and false negatives, re-conceptualize certain aspects of treatment, help us re-envision psychiatric research, and potentially increase empathy towards those individuals considered to be mentally disordered or mentally different. 相似文献
85.
Amotz Perlman Yaakov Hoffman Joseph Tzelgov Emmanuel M. Pothos Darren J. Edwards 《Quarterly journal of experimental psychology (2006)》2016,69(3):410-431
We examined the effect of context on the learning of spatial coding in four experiments. Two partially overlapping sets of stimuli, which had the very same stimulus–response spatial coding, were presented in unique contexts. Results show contextual locking—that is, response times to the very same item in a more common context (80%) were significantly shorter than those in a less common context (20%). Contextual locking was obtained both when the context was more salient (Experiments 1 and 2) and less salient (Experiments 3 and 4). In addition, results were obtained even when contextualization seemed less necessary (Experiments 2 and 4). Binding of information to context is discussed in relation to chunking, transfer effects, and practical applications pertaining to professional training. 相似文献
86.
87.
A tone ending with electrical shock was periodically presented to pigeons while they pecked a key for food. Pairs of birds were run simultaneously under a yoked program which insured that both birds received the same number and temporal distribution of shocks. For one of the birds, shock was always initiated by a peck; for the other, shock was unavoidable. Both procedures led to reduced rates of pecking in the presence of the tone, and gradients of stimulus generalization were obtained. But the effects of response contingent shock extinguished more rapidly than the effects of unavoidable shock. In general, birds exposed to unavoidable shock tended to respond at intermediate rates throughout tone, whereas those exposed to response contingent shock ceased to peck for part or all of the tone period. 相似文献
88.
89.
Factor analysis of 18 Likert-type items dealing with gender stereotypes about family roles was conducted and yielded two measures: one focused on marital roles and one focussed on child rearing. Respondents were parents of children in the third and fourth grades of a large industrialized city in the Midwest. The sample included 364 families equally divided between middle and lower class with 23% African American and 77% European American. For both scales, more stereotyped scores were obtained by parents who were lower in social status, less educated, full-time homemakers, African Americans, and fathers. Parents' scores related to a separate measure of children's stereotypes and the marital-role attitudes related to actual roles reported by family members. Daughters whose parents obtained less stereotyped scores had a more internal locus of control, showed a trend toward more independent coping skills, and—in the middle class—obtained higher scores on achievement tests.This research was supported by Grant No. 91-1437-91 from the William T. Grant Foundation. 相似文献
90.
Currently, most exposure-based treatments call for clinicians to assess for and remove all safety behaviors during exposure tasks. However, the notion that safety behaviors are detrimental across all scenarios has recently been challenged, and research regarding the effects of safety behaviors on exposure outcomes is limited and inconsistent. In clinical practice, classifying a strategy as a safety behavior can be a complex and challenging endeavor, particularly when distinguishing between harmful safety behaviors and helpful coping behaviors. We outline an approach that emphasizes the pragmatic truth criterion and uses functional outcomes to classify behaviors as serving either safety or coping functions. Our focus on doing what “works” simplifies decision-making for clinicians and maintains the focus of treatment on enhancing functioning. We propose a model for using functional outcomes to distinguish between safety and coping behaviors and illustrate our approach through case examples. 相似文献