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251.
Leonard H. Epstein Janet Wagner Sheila Nudelman Bonita L. Marks 《Journal of psychopathology and behavioral assessment》1987,9(4):423-428
The stability of resting metabolic rate and diet-induced thermogenesis was assessed in a group of 8- to 12-year-old children over two sessions. Children were first oriented to the laboratory and participated in a practice session to adapt them to the laboratory procedures. The two metabolic sessions began with the measurement of resting metabolic rate. The children were then provided a caloric challenge, with metabolic measures taken at 30-min intervals for 150 min. Results showed stable resting and integrated diet-induced thermogenic responses across sessions. Differences in the pattern of response from 30 to 60 min were observed, with the response peaking earlier in the first session.This experiment was supported in part by Grant HD19532 NICHD awarded to the first author. 相似文献
252.
253.
Sandra J. McKenzie Karla R. Klein Leonard H. Epstein James McCurley 《Journal of psychopathology and behavioral assessment》1993,15(2):129-139
The generalizability of behaviors across observational conditions is a critical issue in behavioral assessment. Generalizability theory was used to examine two aspects of audio recorded parent-child interactions recorded over 6 days of home measurement and 1 day of laboratory measurement in a behavioral treatment program for childhood obesity. Families audiotaped parent-child home meetings during which they reviewed self-monitored diet and exercise records that were coded for the following types of interactions: praise statements, negative statements, prompts for new behaviors, and statements promoting problem solving. A similar meeting was audiotaped in our laboratory. The first question explored was the number of measurements needed to generalize to the universe of the six home measures. Results showed an increase in generalizability over measurements for each behavioral category. Using generalizability coefficients of .60 or more, praise, negative comments and prompts, respectively, could be reliably observed based on 1, 4, or 4 days of measurement. Second, the effects of setting (laboratory versus home) were assessed for 1 day of measurement in each environment. Again using generalizability coefficients of .60, generalizability analysis showed that the lab setting could not be generalized to the home setting based on 1 day of measurement, with generalizability coefficients ranging from .27 for negative comments to .57 for praise. Results suggest that 4 days of behavioral assessment in the home can be used to establish generalizable data for all the dependent measures studied. However, generalizability coefficients suggested that 1 day of laboratory measurement was not adequate to generalize to typical home behavior.This research was supported in part by Grant NIH HD 23713 awarded to the third author. 相似文献
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255.
Four experiments designed to investigate a visual search task are reported. In each experiment, subjects searched for either a two-dimensional shape rotated in depth among frontal-parallel distractors or a frontal-parallel shape among distractors that were rotated in depth. The principal independent variable was search-set size. In addition, over the four experiments, a variety of spatial arrangements and two axes of rotation in depth were sampled. The chief aim of the experiments was to adduce evidence bearing on the attentional demands of searching for depth. The slopes of the reaction-time (RT) functions were taken as diagnostic. Experiments 1-3 exhibited positive slopes for the RT-set-size function. These slopes appear to be due to a conscious adoption of a serial search strategy by the subjects. When this tendency was suppressed by the procedures of Experiment 4, the slope of the RT-set-size functions did not differ significantly from zero. We conclude that, in agreement with the findings of other studies, slant-in-depth can be detected preattentively. 相似文献
256.
Lawrence Epstein Ph.D. 《Group》1990,14(3):151-156
257.
258.
Yakov M. Epstein Robert L. Woolfolk Paul M. Lehrer 《Journal of applied social psychology》1981,11(1):1-13
The present study testcd the hypotheses that crowded subjects would evidence higher levels of arousal than uncrowded subjects and that the arousal of crowded subjects would not habituate with the passage of time. In a laboratory setting, subjects were exposed three tinies over a 3-week period to either crowding with physical contact or an uncrowded environment. A high degree of convergence in support of the experimental hypotheses was provided by behavioral, physiological, and self-report measures. Crowded subjects were more physiologically aroused; rated by confederates to be more tense, uncomfortable, and annoyed; and reported more negative affect than uncrowded subjects. No evidence for habituation of. response to crowding was found. 相似文献
259.
Epstein R 《The Behavior analyst / MABA》1981,4(1):43-55
Simulations of complex human behaviors with pigeons are providing plausible environmental accounts of such behaviors, as well as data-based commentaries on non-behavioristic psychology. Behaviors said to show "symbolic communication," "insight," "self-awareness," and the "spontaneous use of memoranda" have thus far been simulated, and other simulations are in progress. 相似文献
260.
J B Simpson A N Epstein J S Camardo 《Journal of comparative psychology (Washington, D.C. : 1983)》1978,92(4):581-601
The proposal of the subfornical organ (SFO) as a site of receptors for drinking induced by angiotensin II (AII) was investigated with several mutually confirmatory experiments. Intracranial injections of physiological doses of AII elicited drinking if and only if applied directly to the SFO (Experiment I). Ablation of the SFO selectively (Experiment 2) and permanently (Experiment 4) eliminated drinking elicited by physiological doses of intravenously infused AII. Animals in which SFO had been ablated responded normally to cellular dehydration but reduced responding to the extracellular thirsts of beta-adrenergic activation and hyperoncotic colloid dialysis (Experiment 3). Infusion of saralasin, an AII antagonist, directly into the SFO selectively and reversibly antagonized intravenous AII drinking (Experiment 5). The hypothesis that the SFO contains dipsogenic receptors for circulating AII is strongly supported. 相似文献