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21.
Performance of humans in concurrent avoidance/positive-reinforcement schedules 总被引:1,自引:1,他引:0 下载免费PDF全文
Ruddle HV Bradshaw CM Szabadi E Foster TM 《Journal of the experimental analysis of behavior》1982,38(1):51-61
Performance maintained under concurrent schedules consisting of a variable-interval avoidance component and a variable-interval positive-reinforcement component was studied in three human subjects using points exchangeable for money as the reinforcer. The rate of responding in the avoidance component increased, and the rate of responding in the positive-reinforcement component declined, as a function of the frequency of point-losses avoided in the avoidance component. The performance of all three subjects conformed to equations proposed by Herrnstein to describe behavior in concurrent schedules. The logarithms of the ratios of the response rates in the two components, and the logarithms of the ratios of the times spent in the two components, were linearly related to the logarithms of the ratios of the frequency of loss avoidance in the avoidance component to the frequency of reinforcement in the positive-reinforcement component. When a changeover delay of 5.0 sec was imposed, the slopes of the linear functions were close to 1.0 in the case of two subjects, whereas the third subject exhibited significant undermatching. For two subjects the changeover delay was then reduced to 2.0 sec; in both cases the slopes of the linear functions were lower than under the 5.0-sec condition. One subject participated in a third phase, in which no changeover delay was imposed; there was a further reduction in the slopes of the linear functions. 相似文献
22.
Stimulus discriminability in free-operant and discrete-trial detection procedures. 总被引:4,自引:4,他引:0 下载免费PDF全文
D McCarthy M Davison P E Jenkins 《Journal of the experimental analysis of behavior》1982,37(2):199-215
Six pigeons were trained to discriminate different light intensities in four experimental procedures. Experiment 1 compared stimulus discriminability in a yes-no signal-detection task with discriminability measures obtained from two free-operant procedures. Discriminability estimates were significantly lower in the detection procedure. Experiment 2 showed this lowered discriminability to be a function of the delay between stimulus presentation and the availability of the choice-response keys in the standard detection task. In addition, reinforcement sensitivity was lowest when correct choice responses were intermittently, rather than continuously, reinforced. 相似文献
23.
Six dairy cows (Bos taurus) were trained on several pairs of concurrent variable-interval schedules with different types of food available on each alternative. The required response was a plate press made by the animal's muzzle. Performance generally replicated that found with other species. The generalized matching law accounted for the preference data, showing that food preference could be quantitatively analyzed as a special case of response bias. The preference functions showed that the response- and time-allocation ratios were not as extreme as obtained reinforcement rate ratios (undermatching). 相似文献
24.
The performance of rats and pigeons under fixed-interval schedules was studied in two experiments. The duration of postreinforcement pause was a declining proportion of fixed-interval duration. For pigeons this was true both when the duration of the reinforcer was fixed and when it was increased in direct proportion to increases in fixed-interval duration; the longer reinforcer durations did, however, lengthen the postreinforcement pause at higher schedule values. A quantitative analysis of data from Experiments 1 and 2 and from other studies showed that fractional exponent power functions described the relationship between postreinforcement pause and fixed-interval value; similar functions have previously been observed in studies of temporal differentiation. It was concluded that power functions reflect a direct causal, rather than artifactual, relationship between performance and the temporal requirements of reinforcement schedules. 相似文献
25.
Kecia Ali 《The Journal of religious ethics》2015,43(2):268-288
Religious thinking, including among Muslims, connects food and sex, as well as women and animals; both food practices and gender norms are significant for communal identity and boundary construction. Female bodies (properly covered) and animal bodies (properly slaughtered) serve as potent signifiers of Muslim identity, as patriarchal thought sustains the hierarchical cosmologies that affirm male dominance in family and society and allow humans to view animals as legitimately subject to human violence. I argue that Muslims in the industrialized West—especially those concerned with gender justice—ought to be vegetarians and that feminist ethics provides underutilized resources for Muslim thinking about ethics generally and food ethics in particular. Much contemporary Muslim thought about meat is at least as concerned with demonstrating the primacy of “Islamic” identity as with general questions about the formation of virtuous subjects and the development of good societies. This defensive concern with religious authenticity poses a stumbling block to richer thinking. Engagement with non‐Islamic (though not “un‐Islamic”) ethics provides a model for productive dialogue and engagement among parties who disagree about basic presumptions but agree on desirable outcomes, including the development of individuals' ethical sensibilities and the construction of societies conducive to human flourishing. 相似文献
26.
27.
This study analyzes the effects of implementing three speed management strategies, namely speed feedback signs, periodic law enforcement, and speed feedback sign supported with periodic law enforcement on driver speed behavior and compliance. To analyze the effectiveness of each strategy, nine locations in Pima County, Arizona, were studied in a cross-sectional framework. For each study site, the driver’s speed, date, time, and vehicle’s length were collected at a location prior to the speed management zone as the baseline, at the speed management zone, and downstream of the speed management zone. The general effect showed that all the strategies were effective in reducing average speed and the proportion of drivers exceeding the speed limit. In addition, the results of the robust heteroscedastic ANOVA test showed that among all the strategies, the speed feedback sign supported with periodic law enforcement was the most effective one. Moreover, it was shown that by supporting the speed feedback sign with periodic law enforcement, the reduction in average speed and proportion of drivers exceeding the speed limit would last, even after passing the speed management strategy. In other words, the existence of periodic law enforcement could potentially modify drivers’ behaviors and increase the spatial effectiveness of speed feedback signs. Comparing the behavior of truck and passenger car drivers also revealed similar results. That is, both truck and passenger car drivers tend to slow down after observing the speed management strategy. The experimental evidence indicates positive benefits for reducing excessive speeding behaviors at the sites. 相似文献
28.
John B. King Jr. 《Dialog》2020,59(3):225-232
Lutheran antipathy toward the law is harmful to Christian ethics. This antipathy arises from the false notion that law and gospel are opposed. However, the Lutheran Confessions show that law–gospel distinction does not necessarily imply law–gospel opposition. When law and gospel are properly defined, they interrelate harmoniously within a multiperspectival model of Christian ethics. Moreover, the third use of the law then emerges as the basic and primary use. 相似文献
29.
Many recent nonlaboratory-based quantitative analyses of behavior have relied on archival competitive sporting data. However, the ratio-based reinforcement schedules in most athletic competitions and the correlational nature of archival data analyses raise concern over the contributions of such findings to the behavior analytic literature. The current experiment evaluated whether matching in a human operant paradigm would approximate matching observed in nonlaboratory-based sports data. To this end, we used in-game attributes to parametrically manipulate 2- and 3-point shooting in a commercially available basketball video game. The behavior of 6 of 9 participants conformed to the generalized matching equation. These results suggest matching in sporting contexts may be a product of restricted nonindependent concurrent random-ratio schedules. Implications of this experiment, including those in applied behavior analysis and potential influence on gamification, are discussed. 相似文献
30.
Ralph Bolton 《Aggressive behavior》1979,5(3):233-255
The Qolla Indians have high rates of involvement in agonistic forms of interaction. In previous reports the author suggested that ecological and physiological factors are causally associated with intracommunity differential participation in aggressive behavior. The present article described tests of hypotheses using other variables to explain this behavioral differentiation. The hypothesis that aggressiveness and participation in litigation are a function of the amount of social support the individual can potentially mobilize is tested. The relationships between indicators of social status (wealth, education, age, political activities, and ritual participation), on the one hand, and aggressiveness and litigiousness, on the other, also are examined. 相似文献