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101.
102.
Geoffrey Hall 《Learning and motivation》1982,13(1):26-43
The responding of pigeons on a variable interval schedule of reinforcement was investigated in four experiments. In some conditions in each experiment reinforced keypecks were accompanied by a brief (0.5-sec) flash of the houselight. This procedure resulted in a low rate of response in comparison with that found in conditions when response-contingent light flashes occurred uncorrelated with reinforcement (Experiments 1 and 2) or when no light flash was presented (Experiment 3). Experiment 4 allowed a comparison between the effects of a signal accompanying the reinforced response and one accompanying the delivery of “free” food. Signaling the delivery of earned food produced a lower rate of response than did signaling the delivery of free food. The role of stimulus-reinforcer and response-reinforcer associations in producing these effects is discussed. 相似文献
103.
An experiment was conducted to investigate how actors' attributions of causality are affected by their expectancy about the outcome of an action and their observation of the actual outcome while in a state of high or low objective self-awareness. In the presence or absence of a camera, subjects delivered therapeutic instructions which were expected to have a positive or a negative effect and which resulted in a positive or a negative effect on a supposedly phobic patient. Principal findings were that (1) attributions to self were greater under high objective self-awareness for positive relative to negative outcomes, (2) attributions to the patient were relatively great under high objective self-awareness when a positive outcome was expected but a negative outcome actually occurred. The results are discussed in terms of the joint role of focus of attention and self-esteem processes in the attribution of causality and in terms of their relationship to Duval and Wicklund's (1973) “focus of attention” attributional analysis. 相似文献
104.
105.
Central capacity limits in consistent mapping,visual search tasks: Four channels or more? 总被引:2,自引:0,他引:2
Donald L. Fisher 《Cognitive psychology》1984,16(4):449-484
The issue of limits in central processing capacity is of long-standing interest to psychologists. Some behaviors appear to draw on limited resources, others appear to have no resource limits. The existence of behaviors which do not compete for limited resources is suggested by the results from visual search experiments which keep constant the mapping of stimuli to responses. Behavior in such experiments is referred to as automatic detection. Results are reported which suggest, unlike the above, that resources are really quite limited in consistent mapping, visual search tasks. The results from this study (and other studies) are in agreement with a model of visual information processing behavior which assumes that the maximum number of cognitive comparison operations which can be executed simultaneously is restricted to somewhere in the neighborhood of four (the exact number depending on the subject). The model makes a strong prediction about the relation between the rate of stimulus presentation and accuracy, a prediction which is supported by the results. It is tentatively proposed that the steady-state, limited-channel model developed here may provide the beginnings of an integrated treatment of certain key results from subitizing and iconic memory experiments as well as visual search experiments. 相似文献
106.
Sharon R. Vaughn Carl A. Ridley Deborah Dungan Bullock 《Journal of applied developmental psychology》1984,5(3):213-223
The purpose of this study was to evaluate the efficacy of an interpersonal problem-solving training program with aggressive young children. There were 13 children in the experimental group and 11 children in the contact control group. Both experimental and contact control group children were evaluated at pretest, posttest, and follow-up on the Behavioral Interpersonal Problem Solving Test (BIPS). Experimental group subjects were exposed to the interpersonal problem-solving skills training program for 50 training sessions. The contact control group participated in reading-story sessions during the same time period. Results and discussion reflect the efficacy of the training procedure and the nature of the change in interpersonal problem-solving behavior in aggressive young children. 相似文献
107.
Two studies assessed the effects of interagent, inconsistent discipline on aggression in young boys. One agent responded to hitting behavior with verbal disapproval while another agent responded with verbal approval. In Experiment 1, the frequencies of hitting responses of first- and second-grade boys were examined under four schedules of adult reactions: (1) consistent disapproval; (2) consistent ignoring: (3) consistent approval; and (4) inconsistent discipline (approval from one agent and disapproval from the other). Aggressive responding was least frequent when met with consistent disapproval whereas the frequency of hitting responses in the inconsistent discipline condition was not different than that in the consistent approval and ignore conditions. In Experiment 2, the frequencies of hitting responses were examined under a schedule of consistent disapproval following a brief schedule of either: (1) inconsistent discipline; (2) consistent approval; or (3) consistent ignoring. Hitting behavior during consistent disapproval was greatest following a period of inconsistent discipline and least frequent following a history of consistent ignoring. These findings replicate the results of correlational field studies of the relation between inconsistent discipline and aggression in boys. In addition, these experimental studies demonstrate a causal link and the direction of effects between these variables. 相似文献
108.
109.
L G Ost 《Behaviour research and therapy》1978,16(3):197-207
The use of four different behavioral techniques in the treatment of six female clients with thunder and lightning phobia is described. The techniques (Systematic desensitization. Covert reinforcement. Stress inoculation training, and Self administered desensitization with tape recorder) were evaluated in single-case experimental designs, using both self-report, behavioral, and physiological data.The immediate and follow-up results showed that five of the clients were completely recovered and the sixth markedly improved after their respective treatment (10–14 session). These results and the questions concerning continuous assessment in single-case design and external validity of laboratory assessment in phobic conditions are discussed. 相似文献
110.