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901.
  总被引:1,自引:0,他引:1  
Eyelid conditioning was carried out in three groups of phobic patients: (i) animal phobies, (ii) agoraphobics, and (iii) social phobics. Several measures, including anxiety and improvement ratings, the Eysenck Personality Inventory, the Cornell Medical Index, and two other symptom check lists were administered. The groups were found to differ on a large number of variables, including conditioned response frequency during acquisition (P < 0.006) and extraversion. These variables were interdependent, and partialling out one on covariance analysis eliminated the significant difference of the other. Number of conditioned responses during extinction significantly differentiated the three groups when anxiety level was partialled out. These findings suggest that the failure to extinguish fears as well as their rapid acquisition may be relevant to the development of animal phobias.  相似文献   
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Two types of housing condition, low and high ambient stimulation, were alternated. The effects of this treatment upon rats' subsequent stimulation-seeking behaviour were assessed in a multiple-choice head-input apparatus. The aim of the experiment was to determine whether adult animals would adapt and re-adapt to varying periods of upward and downward shifts in the levels of housing stimulation. A given housing-stimulation had a lawfully cumulative effect which could be completely reversed when housing conditions altered. The most sensitive measures were latency and response rate in the first 5 min of the test. One measure, relative preference for illuminated stimuli over a dark stimulus, gave an indication of the time-lag involved in adaptation to a new housing condition.  相似文献   
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910.
  总被引:1,自引:0,他引:1  
We studied three groups of children (mute autistics, autistics with echolalic speech, and normals) under two conditions (while the children were engaged in self-stimulation vs. free from self-stimulatory behavior). The children were trained to approach a dispenser, for candy reinforcement, at the sound of a tone. The time interval between the onset of the tone and Ss approach was labelled his response latency. We found that (1) the presence of self-stimulatory behavior was associated with increased response latencies for the mute autistics; (2) the response latencies of the latter group decreased as Ss received increased training in responding to the auditory stimulus; (3) the amount of self-stimulatory behavior varied with the magnitude of reinforcement for other behavior; (4) in a preliminary way, we obtained some control over the response latencies by experimentally manipulating the amount of self-stimulatory behavior. The data were conceptualized in terms of competing reinforcers.  相似文献   
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