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991.
992.
Three experiments using a conditioned punishment paradigm with rat subjects examined the possibility that the nonmonotonic acquisition function previously found to characterize simultaneous conditioning was due to the noninformative nature of the conditioned stimulus (CS). In Experiment 1 the suppressive effects of a CS previously presented with an unconditioned stimulus (US) in a simultaneous and forward (informative) manner were compared following 20 and an additional 60 conditioning trials. Excitatory conditioning similarly diminished with increased trials for both the simultaneous and forward procedures. Experiment 2 employed a between-groups design. Simultaneous, forward, and trace conditioning procedures were compared following 20 or 100 trials. Each of the three 100-trial groups showed less resistance to extinction than their 20-trial counterparts. Experiment 3 determined that the decrement in excitatory conditioning for the 100-trial groups was not due to the greater number of US presentations, per se, but rather to the number of CS-US pairings. The nonmonotonic acquisition function observed with all three conditioning procedures indicated that informational factors were not responsible for the decrement observed in simultaneous conditioning. The pattern of results suggested that subjects receiving extended conditioning trials were better able to discriminate between training and testing.  相似文献   
993.
The purpose of this study was to compare thresholds for angular acceleration derived by subjective cupulometry and by a staircase method. Thresholds for the perception of rotation and the oculogyral illusion were determined for 10 Os who were rotated about their vertical axis. The cupulometric thresholds were significantly higher, more variable, and not predictable from the staircase thresholds. Furthermore, cupulometry failed to distinguish between the thresholds for the perception of rotation and the oculogyral illusion, although both indicators functioned according to the prediction of the underlying linear model. Individual differences supported the general conclusion that cupulometric thresholds bear no relationship to the sensory threshold derived in a classical psychophysical manner.  相似文献   
994.
Distributing the presentation of sublists of words into multiple learning rooms produced better free recall scores than a single learning room condition for subjects who were given a comprehensive recall test in a new environment. No such effects occurred on recognition or list differentiation tests in Experiment 2, implying a retrieval explanation rather than one relying upon learning or list differentiation effects. Experiment 3 found that the contextual dependence of recall li.e., recall tested in a learning context is better than recall tested in a new context was nullified by using multiple learning rooms, rather than a single room for input. The data are consistent with an explanation that states that the multiple learning rooms become associated with the different sublists during learning and subsequently act as memory landmarks that guide the course of retrieval.  相似文献   
995.
H. H. Kelley's (American Psychologist, 1973, 28, 107–128) framework for studying attribution processes is introduced as a means of accounting for characteristic asymmetries in success/failure attributions. It is argued that while success/failure asymmetries should occur in the presence of single-observation information, asymmetries should be eliminated when individuals are allowed to observe the covariation between their own actions and outcomes. Subjects participated in a 15-trial stock market simulation in which type of information (single-observation or covariation) and goodness of outcome (relative success or failure) were manipulated. The obtained results supported the experimental hypotheses. Given single-observation information, subjects were more likely to accept personal responsibility for good than for poor outcomes. However, subjects' attributions were not affected by goodness of outcome when they were provided with covariation information. The implications of these findings are discussed in terms of the current debate between motivational and information-processing explanations of asymmetries in success/failure attributions.  相似文献   
996.
Two experiments were conducted in order to examine the accessibility of attitudes from memory as a function of the manner of attitude formation. The findings of the first experiment indicated that subjects could respond more quickly in a response-time task to inquiries about their attitudes when the attitudes were based upon direct behavioral experience with the attitude objects than when they were based upon nonbehavioral experience. It was suggested that, relative to indirect experience, behavioral experience may facilitate the attitude formation process and increase attitude accessibility once the attitude is formed. A second experiment found support for both of these notions. Two additional experiments indicated that repeated association of the attitude object and the attitudinal evaluation enhanced both attitude accessibility and attitude-behavior consistency. It was suggested that the strength of the object-evaluation association is a critical determinant of accessibility, which, in turn, acts as a central factor in the process by which attitudes affect later behavior. It was further suggested that the manner of attitude formation affects attitude-behavior consistency because direct experience produces a stronger object-evaluation association and, hence, a more accessible attitude than does indirect experience.  相似文献   
997.
The study was conducted to examine observers' attention to adults following warm and neutral interactions with them. Forty-two preschool and 36 third grade girls interacted with a pair of female models in one of three treatment conditions in which models were, respectively, warm and neutral, neutral and neutral, or warm and warm. Subiects then witnessed the models play a picture-preference game and were asked to recall the models' responses. Analyses of the children's overt attention to the models' responses revealed a greater attention to a warm model when in the presence of both a warm and neutral model and less distraction by nonsocial stimuli when at least one warm model was present. A significant positive correlation was obtained between attention to and recall of the models' responses.  相似文献   
998.
999.
1000.
The effects of social punishment, positive practice, and timeout on the noncompliant behavior of four mentally retarded children were assessed in a multitreatment withdrawal design. When programmed, the experimental procedure occurred contingent on noncompliance to experimenter-issued commands. Commands were given at 55-sec intervals throughout each experimental session. The results showed (1) lower levels of noncompliance with social punishment than with the positive-practice or timeout conditions, and (2) that relatively few applications of social punishment were required to obtain this effect. The advantages of social punishment over other punishment procedures, considerations to be made before using it, and the various aspects of the procedure that contribute to its effectiveness were discussed.  相似文献   
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