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201.
Pigeons were maintained on a multiple schedule in which both components were variable-interval one-minute schedules. When they were switched to a condition in which one component was extinction, behavioral contrast was observed. The median durations of the key pecks in the unchanged component did not decrease in size. The results are incompatible with a theory of behavioral contrast which considers the added pecks to be short-duration responses. In a second experiment, pigeons were required to emit short-duration key pecks in one component of a multiple schedule, and long-duration pecks in the other. Two of three pigeons learned to emit responses appropriate to the requirements of the component in effect, suggesting that the duration of the key-peck response is sensitive to differential reinforcement. 相似文献
202.
D W Schaal 《Journal of the experimental analysis of behavior》1996,66(1):135-141
In this technical article, methods for collecting and representing response rates maintained by schedules of reinforcement are presented. First, the time in a session that each important event (e.g., responses, reinforcers) occurs is collected and stored by a computer. Another computer program is used, then, to convert each response to a percentage of the total responses in a session and to plot these percentages cumulatively as a function of the time in the session that they occurred. In this manner, response rates may be expressed proportionally (i.e., using the same y-axis scale regardless of absolute response rate) without requiring the arbitrary selection of an interval over which responses are aggregated and expressed relative to the entire-session rate. A property of these records is that deviations in the slope of the obtained record from the diagonal, which connects (x, y) = (start of session, 0%) to (x, y) = (end of session, 100%), occurring at any point and for any duration, represent changes in the local response rate from the entire-session rate. This method of representing ongoing responding is illustrated by several records of key pecking of a pigeon on a variable-interval 60-s schedule of food reinforcement. Relative local response rates were also computed from these data at several levels of resolution (i.e., the time over which responses were aggregated), including the level typically employed by those interested in within-session changes in response rates. 相似文献
203.
One of the primary intents of inclusion is the maximization of interaction between persons with and without disabilities. The purpose of this study was to analyze the verbal responding that peers directed toward adolescents with behavioral disorders and, to this effect, several comparisons were made: verbal responding of peers directed toward adolescents with behavioral disorders was compared to verbal responding of peers directed toward regular class adolescents; verbal responding of peers directed toward the same adolescents with behavioral disorders was compared across their self-contained and integrated settings; and verbal responding of peers directed toward adolescents with behavioral disorders in integrated settings was compared to verbal responding of peers directed toward regular class adolescents. Data, collected in real time using portable microcomputers, focused on positive, negative, and neutral social responding and positive, negative, and neutral academic responding. All verbal responding of peers directed toward 14 adolescents with behavioral disorders and 14 regular class peers was recorded. Data were analyzed by group and setting, as well as by social or academic content. Results of the study support inclusion, with high levels of peer responding directed toward adolescents with behavioral disorders in integrated classrooms. Almost all peer responding was positive or neutral in content. Results were discussed as they related to placement of students, social skills training, and previous research. 相似文献
204.
M T Laurence P N Hineline P J Bersh 《Journal of the experimental analysis of behavior》1994,61(2):135-153
Four squirrel monkeys were first exposed to a sequence of procedures that reliably generate responding maintained by brief response-contingent electric shocks arranged according to a fixed-interval schedule. After responding had become stable on the fixed-interval schedule, additional contingencies were added in tandem, whereby after completion of the interval, the spacing of responses affected shock delivery. In one procedure, responses had to be spaced more widely than their previous median value if shock were to be delivered. In the other procedure, responses had to be spaced more closely to produce shock. On the first of these procedures, decreased but stable responses rates would indicate that shock functioned as a positive reinforcer; on the second, increased response rates would indicate the positively reinforcing function. Instead, response rates accelerated on the procedure that targeted more widely spaced responses for shock delivery, and decelerated or ceased on the procedure that arranged for shocks to be produced by more closely spaced responses. Consistent with other recent findings, these results question the interpretation of performances maintained by response-contingent shock as engendered by positive reinforcement and are consistent with aversive-control interpretations. The details of that aversive control are not entirely clear, however, and these same procedures would be informative if applied to shock-maintained behavior that is generated in other ways. 相似文献
205.
206.
Nancy E. Marchand-Martella Ronald C. Martella Martin Agran Charles L. Salzberg K. Richard Young Daniel Morgan 《Journal of applied behavior analysis》1992,25(4):841-851
Peers with mild intellectual disabilities taught first aid skills to 4 students with moderate intellectual disabilities. A multiple probe design across participants was used to examine the effects of the peer teaching program during an acquisition and a partial sequential withdrawal phase. Generalization assessments were conducted in the participants' homes using novel, randomized simulated injuries. Results suggested that the peer teaching program resulted in acquisition of first aid skills, and the participants' skills generalized to the home, to novel simulated-injury locations, and to new trainers. Additionally, a more detailed analysis of the generalized responding suggested that when given a choice among first aid materials, participants treated burns using large adhesive bandages rather than the materials used in training. Participants also successfully treated injuries when novel instructional cues were used. The findings are discussed with respect to training issues, generalization and maintenance of the acquired skills, and the use of peer tutors with disabilities. 相似文献
207.
Pigeons worked individually in a chamber containing a response key and a mirror. Pecking on the key was controlled by a multiple schedule in which a brief period of continuous food reinforcement alternated with a 5-minute period of extinction. Under baseline conditions, aggressive behavior (responding on the mirror) occurred at the onset of each extinction period. In Experiment I (acute drug administration), the aggressive behavior was decreased by doses of cocaine that had little or no effect on key pecking. Such food-reinforced responding was disrupted, however, by higher doses of cocaine. An attempt to mimic the disruptive drugs effects by a prefeeding manipulation was unsuccessful. In Experiment II (chronic drug administration), some tolerance developed to the disruptive effects of cocaine on the food-reinforced responding, except at the highest dose tested. There was no clear-cut indication of tolerance to the initial effect of cocaine on the aggressive behavior at any dose. 相似文献
208.
The history of cumulative recorders manufactured in Japan between the early 1970s and the present is described. The first such instrument was the Tosoku-Kogyo Company's Model T-45A, followed thereafter by its Model T-45B, built on the same chassis as the T-45A, but with different electrical and mechanical components. When Tosoku-Kogyo closed its recorder operations, the recorder continued to be manufactured and sold by Okubo-Sokkouki as its Model OS 180. The appearance of such commercially manufactured cumulative recorders in countries other than the United States further attests to the internationalization of behavior analysis during the mid- to late-20th century. 相似文献
209.
M. Alice Shillingsburg Michael E. Kelley Henry S. Roane April Kisamore Melissa R. Brown 《Journal of applied behavior analysis》2009,42(2):209-223
Topographically similar verbal responses may be functionally independent forms of operant behavior. For example, saying yes or no may have different functions based on the environmental conditions in effect. The present study extends previous research on both the assessment and acquisition of yes and no responses across contexts in children with language deficits and further examined the functional independence of topographically similar responses. All participants in the present study acquired yes and no responses within verbal operants (e.g., mands). However, generalization of the responses across novel verbal operants (e.g., tacts to intraverbals) did not occur without additional training, thus supporting Skinner's (1957) assertion of functional independence of verbal operants. 相似文献
210.
Effects of self‐enhancement and socially desirable responding (SDR) on rater agreement for personality profiles were studied in 304 students. Dyads of participants described themselves and their peer on the Revised NEO Personality Inventory (NEO‐PI‐R) that measures 30 facets of personality. In addition, participants filled in six scales measuring self‐enhancement or SDR. Data analyses focussed on moderator and suppressor effects of SDR on the similarity between self‐reported and other reported NEO‐PI‐R profiles. Three kinds of profile agreement were distinguished: (a) normative agreement; (b) distinctive agreement and (c) profile normativeness, that is, how strongly a self‐reported personality profile resembled the average profile of all participants. There were no moderator or suppressor effects on distinctive agreement, but SDR predicted profile normativeness quite strongly. Copyright © 2009 John Wiley & Sons, Ltd. 相似文献