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41.
Donnie W. Watson Lorrie Bisesi Susan Tanamly Tiffanie Sim Cheryl A. Branch Eugene Williams III 《Journal of religion and health》2003,42(3):191-200
The issues of poor health care, poverty, crime, and HIV infection make it more difficult for minority communities to combat substance abuse and other diseases that are prevalent in the African-American community. Faith communities in general, and African-American churches in particular, are a largely untapped, but potent, resource to reduce the toll of substance abuse and other health issues. Information about ministers' knowledge, attitudes, and behaviors regarding leading health indicators, the frequency with which they discuss these issues from the pulpit, and organizational readiness to develop and implement interventions can be the foundation of clergy training and health intervention efforts. 相似文献
42.
To date, studies exploring the relationship of counterfactual thoughts with episodic memories and episodic future thoughts have focused mainly on voluntary mental time travel. We explore mental time travel in everyday life and find that episodic counterfactual thinking occurs to a much lesser extent than thinking about the past or the future (12%, 22%, and 54%, respectively), is used mainly for mood regulation purposes, and the temporal distribution decreases as a function of time. We observe similarities in phenomenological detail: memories and counterfactual thoughts sharing similar ratings of sensory detail, memories and future thoughts sharing similar ratings of positivity, and counterfactual and future thoughts sharing similar ratings of mental time travel. We discuss the implications of episodic counterfactual thinking in everyday life. 相似文献
43.
The effects of cocaine were examined under a titrating-delay matching-to-sample procedure. In this procedure, the delay between sample stimulus offset and comparison stimuli onset adjusts as a function of the subject's performance. Specifically, matches increase the delay and mismatches decrease the delay. Titrated delay values served as the primary dependent measure. After establishing stable performance in pigeons, several behaviorally-effective doses of cocaine were administered acutely. Dose-related within-session decreases in titrated delay values were observed. Following acute determinations, the dose of cocaine that produced the most rapid decline without eliminating performance was administered prior to each daily session. Chronic administration resulted in performance trending toward control levels. A redetermination of the dose-response function following chronic exposure revealed reduced potency (i.e., tolerance) under cocaine on titrated delay matching-to-sample performance. Supplemental analyses suggest that cocaine may serve as a disruptor of the stimulus conditions in which the performance was established. 相似文献
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Tolerance to effects of cocaine can be modulated by schedules of reinforcement. With multiple ratio schedules, research has shown an inverse relationship between ratio requirement and amount of tolerance that resulted from daily administration of the drug. In contrast, tolerance to the effects of cocaine on behavior under multiple interval schedules generally has developed regardless of interval value. Under interval schedules reinforcement depends on the animal making one response following a time interval. Thus, as time to respond increases, the time to reinforcement decreases. On the other hand, fixed ratio schedules require a specified number of responses to be made prior to reinforcement. Therefore, delaying the initiation of responding does not coincide with a significant decrease in the time to reinforcement. In the current experiment, 6 pigeons were trained to respond under a three-component multiple schedule, with a different tandem fixed-ratio 1 fixed-interval schedule in each component. The multiple schedule required one response, which was followed by one of three fixed-interval values (5, 15, or 60 s). Thus, the multiple schedule was interval-like because after the fixed-ratio 1, only one more response was required for reinforcement, but it was also ratio-like because the length of the pause at the beginning of each interreinforcer interval affected the time until the next reinforcer. Acute administration of cocaine generally resulted in dose-dependent decreases in responding. Chronic (i.e., daily) administration of a rate-decreasing dose resulted in tolerance patterns similar to those usually obtained with multiple ratio schedules. That is, the magnitude of tolerance was related inversely to schedule size. These results suggest that delay to reinforcement from the initial response may play a role in the development of schedule-parameter-related tolerance. 相似文献
46.
Converging behavioral findings support recent models of motor control suggesting that estimates of the future positions of a limb as well as the expected sensory consequences of a planned movement may be derived, in part, from efference copies of motor commands. These estimates are referred to as forward models. However, relatively little behavioral evidence has been obtained for proposed forward models that provide on-line estimates of current position. We report data from a patient (JD) who reached accurately to visualized targets with and without vision of her hand despite substantial proprioceptive loss. Additionally, we administered a double-start reaching test to examine the possibility that efference copy information could be used to estimate current limb position. JD reached accurately, without vision, to a final target after actively reaching to a landmark, but exhibited severely impaired reaching after passive movements to the landmark. This finding suggests that forward modeling of efference copy signals may provide relatively accurate estimates of current limb position for the purpose of motor planning. The possibility that such estimates may also contribute to the awareness of body position and to self-recognition is discussed. 相似文献
47.
Sheryl Ramsay Ashlea Troth Sara Branch 《Journal of Occupational & Organizational Psychology》2011,84(4):799-816
Work‐place bullying is primarily conceptualized in the literature from an individual or interpersonal perspective with a focus on the victim. The impact of the broader organizational context on bullying has also been considered to a lesser extent. Only a small amount of research exists, however, regarding the group‐level processes that impact on the incidence and maintenance of bullying behaviour. We adopt a group level perspective to theoretically discuss and explain the processes involved in the occurrence and maintenance of work‐place bullying behaviours. Using Social Identity Theory ( Tajfel & Turner, 1986 ) and Social Rules Theory ( Argyle, Henderson, & Furnham, 1985 ), two conceptual frameworks are presented that consider work‐place bullying at the intra‐group and inter‐group levels. Several propositions are put forward regarding the likelihood of bullying in work groups. Suggested directions for empirical research are addressed and practical implications are also discussed. 相似文献
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This study is a replication and extension of the work of Forbes and Ashton (1998). Seventy-seven African American high school students completed the revised version of the Extended Objective Measure of Ego Identity Status. Most of the students were found to be in uncommitted identity statuses. Similar results were found in both the ideological and interpersonal domains. 相似文献
50.
Marc Branch 《Journal of the experimental analysis of behavior》2021,115(1):44-55
Murray Sidman's (1960) Tactics of Scientific Research: Evaluating Experimental Data in Psychology just celebrated its sixtieth anniversary. It is without doubt one of the most influential books in the history of Behavior Analysis. This review outlines the rationales for, and details of, methods for the investigation of the behavior of individual subjects that Sidman presented. Many of his observations and recommendations are as timely as ever, maybe even more so, given the “reproducibility crisis” and one of its major origins. 相似文献