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In the present study, the authors examined the effects of diazepam (Valium) on various physical, social, and emotional variables within the framework of a task designed to test risk-taking behavior. Participants received either 10 mg of diazepam or a placebo. After the participants tasted strong-flavored liquids, they were able to engage in a risky behavior (i.e., drinking from a confederate's "used" water bottle). Half the participants received additional verbal pressure to drink from the bottle. The authors expected that diazepam would increase health-risk behavior, but the results were inconsistent with that prediction. The second goal of the experiment was to explore diazepam's effects on arousal, mood, social anxiety, and taste. Diazepam users exhibited differences in taste perception and social anxiety, which might in part explain the health-risk results. 相似文献
613.
Pollina DA Dollins AB Senter SM Krapohl DJ Ryan AH 《The Journal of applied psychology》2004,89(6):1099-1105
In a preliminary attempt to determine the generalizability of data from laboratory mock-crime studies, the authors examined the similarities and differences among the cardiovascular, electrodermal, and respiration responses of deceptive and nondeceptive individuals elicited to crime-relevant and crime-irrelevant questions. Participants in the laboratory group were randomly assigned to nondeceptive (n = 28) or deceptive (n = 27) treatment groups, and a mock-crime scenario was used. The field participants were confirmed nondeceptive (n = 28) or deceptive (n = 39) criminal suspects who underwent polygraph examinations between 1993 and 1997. The results indicated that there were salient differences between field and similarly obtained laboratory polygraph response measures. However, accuracy of laboratory participants' classifications using logistic regression analysis was not significantly different from field participants' classification accuracy. 相似文献
614.
In three experiments, we examined how readers learn and generalize new pronunciations for vowel graphemes. Children ages 6 1/2 to 9 (n = 97) and college students (n = 21) were taught a nonword that included a novel vowel pronunciation in the middle position (e.g., zuop is pronounced /zup/). They were then asked to pronounce other nonwords that contained the same vowel grapheme. Participants were more likely to use the taught pronunciation when the target item and the training item shared a consonant as well as a vowel than when they shared only the vowel. The new pronunciation was not significantly more likely to appear when the target shared the vowel and final consonant (rime) of the training stimulus than when it shared the initial consonant and vowel. We discuss implications for views of reading and its development. 相似文献
615.
Vyse S 《The Behavior analyst / MABA》2004,27(1):43-53
Historically, behavior analysis and trait psychology have had little in common; however, recent developments in behavior analysis bring it closer to one of the core assumptions of the trait approach: the stability of behavior over time and, to a lesser extent, environments. The introduction of the concept of behavioral momentum and, in particular, the development of molar theories have produced some common features and concerns. Behavior-analytic theories of stability provide improved explanations of many everyday phenomena and make possible the expansion of behavior analysis into areas that have been inadequately addressed. 相似文献
616.
Gralinski-Bakker JH Hauser ST Stott C Billings RL Allen JP 《Research in human development》2004,1(4):291-326
In this report, we drew on data from an ongoing longitudinal study that began in 1978 (Hauser, Powers, Noam, Jacobson, Weiss, & Folansbee, 1984). Focusing on late, young-adult life among individuals who were psychiatrically hospitalized during adolescence, we examined markers of resilience empirically defined in terms of adult success and well-being. The study includes a demographically similar group recruited from a public high school. Major goals were to (a) develop preliminary models of adaptive functioning among adults in their 30s, (b) examine the extent to which adults with histories of serious mental disorders can be characterized by these models, and (c) explore predictors of successful adult lives from indicators of individuals' psychosocial adjustment at age 25.Results showed significant cohort effects on indexes of adaptive functioning, especially for men. Findings suggest that social relations as well as self-views of competence and relatedness play important roles in characterizing adjustment during the adult years. In addition, indexes of psychosocial adjustment as well as symptoms of psychiatric distress and hard drug use at age 25 made a difference in adult social functioning and well-being, providing hints of possible mechanisms likely to facilitate the ability to "bounce back" after a difficult adolescence. 相似文献
617.
Nonclinical participants watched a trauma film under two processing conditions. During part of the film participants carried out a concurrent visuospatial grounding task consisting of the construction of shapes out of plasticine (modelling clay), while the rest of the film constituted a control, no task condition. The visuospatial task was predicted to selectively compete for processing resources required for intrusive image formation. As predicted, spontaneous intrusive images during the succeeding week were significantly less common from those parts of the film that coincided with the concurrent task. The task had no effect on levels of distress or peritraumatic dissociation, consistent with the hypothesis that intrusions were reduced because the task competed for resources necessary for encoding into an image-based memory system. 相似文献
618.
Karver MS 《Journal of abnormal child psychology》2006,34(2):242-253
This study examined whether characteristics of behavioral items reported by parent and child are related to parent–child agreement. Data were collected from 20 judges rating 59 child behaviors on 11 dimensions hypothesized to affect parent–child agreement. Data from 675 parent–child dyads (85% female caregivers, 62% male children, aged 7–17) reporting on 59 child behaviors were used to examine agreement. Behavior characteristics accounted for 43% of variability in parent–child agreement. Three components, saliency to the parent, saliency to the child, and observability/willingness to report, contributed uniquely to prediction of agreement. 相似文献
619.
620.
Klapp ST 《Journal of motor behavior》2003,35(2):135-150
Reaction time (RT) prior to speech articulation increased as a function of response complexity. The RT findings formed 2 patterns, each of which was a different Response Complexity x Paradigm (choice RT vs. simple RT) interaction. That result extends previous findings from manual button-pressing tasks (S. T. Klapp, 1995) to a different action modality. Two different types of response programming, INT and SEQ, are assumed in the interpretation. Whereas INT can be identified with response programming within a word, SEQ fits a different interpretation related to timing of onsets of speech units. A critical assumption is that a long response is represented as a sequence of chunks; that organization is subject to manipulation. New findings suggest some modifications of the previous theory. 相似文献