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181.
Joseph E. O. Newton John L. Chapin Oddist D. Murphree 《Integrative psychological & behavioral science》1976,11(2):105-120
Methylphenidate, 0.5 mg/kg, injected intravenously, was used in 10 normal (A line) and 10 genetically nervous (E line) dogs
in a blind-design experiment to aid in prediction, from cardiovascular recordings alone, of behavioral normalityversus nervousness. The prediction was 75 per cent correct, based on heart rate (HR), form of the electrocardiogram (EKG), pattern
of sinus arrhythmia, and pattern of HR response to methylphenidate. Nervous dogs were found to have slower baseline HR’s,
delayed return of HR to baseline after methylphenidate, greater occurrence of baseline EKG abnormalities and much greater
frequency of these after methylphenidate. Degree of nervousness was found to correlate rather highly (1)negatively with baseline HR level, (2)negatively with speed of BP response, and (3)positively with frequency of some of the EKG manifestations. These data, indicative of a relative inertness of physiological functions
of nervous pointer dogs compared with normal pointers, are consistent with the behavioral and some of the biochemical findings
previously reported. 相似文献
182.
It was shown that a McCollough-type color aftereffect could be induced using a pair of patterns each of which contained lines of many orientations (radial lines and concentric circles). That is, the two patterns appear to be color adapted independently. The effect could simply be a new version of the McCollough effect facilitated by a tendency to fixate the centers of the patterns. Also, the size features of the displays could be used as the basis of a spatial frequency analyzer explanation. Experimental data were used to test both of these suggestions, but very little support was found for either. It was therefore suggested that the major basis of the effect was the color adaptation of “curvature analyzers.” 相似文献
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A cognitive model of the processes underlying the arousal of a state of communication apprehension is proposed. This model draws upon current work in cognitive science to specify the nature of the relevant structures and the nature of the processes that operate over those structures. An empirical test of the model indicates strong support in that the interaction of long-term memory contents and perceived evaluative ness of the situation was a significant predictor of anxiety. Additionally, the model allowed the prediction of changes in physiological arousal (heart rate) over time that closely paralleled observed heart rate. 相似文献
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