Nathalie Boutros  Michael Davison    Douglas Elliffe 《Journal of the experimental analysis of behavior》2009,91(1):41-60

Five pigeons responded on steady-state concurrent variable-interval variable-interval schedules of food presentation in which half of the foods were removed and replaced with nonfood stimuli. Across conditions, the stimuli were either paired or unpaired with food, and the correlation between the ratio of food deliveries on the two alternatives and the ratio of nonfood stimuli was either −1, 0, or +1. Neither the pairing of stimuli with food, nor the correlation between stimuli and food, affected generalized-matching performance, but paired stimuli had a demonstrable effect at a local level of analysis. This effect was independent of the food–stimulus correlation. These results differ from results previously obtained in a frequently changing environment. We attribute this difference in results to differences in the information value of response-contingent stimuli in frequently changing versus relatively constant environments, as well as to differences between forward pairing and simultaneous pairing of the stimuli with food.  相似文献   

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A Silberberg  J R Thomas    N Berendzen 《Journal of the experimental analysis of behavior》1991,56(3):575-584

Each of 5 adult male humans sat in a 4 degrees C room where they could warm themselves by illuminating six heat lamps for 10-second periods according to a concurrent variable-interval variable-ratio schedule. Left-button presses on a response panel switched between the schedules and started a 2-second changeover delay. Right-button presses illuminated the heat lamps if assigned by the associated schedule and if the changeover delay had timed out. Panel lights identified the schedule in effect and each effective right-button press. A discrimination procedure--either a multiple variable-interval variable-ratio schedule or the presentation of each schedule individually on alternate days--preceded exposure to the choice procedure for some subjects. For subjects not exposed to a discrimination procedure prior to exposure to choice, or if such exposure failed to result in higher rates to the ratio than to the interval schedule, relative response rates matched relative reinforcement rates. However, if subjects responded at higher rates to the ratio schedule than to the interval schedule during a prior discrimination procedure, relative rates on a subsequent choice procedure deviated from matching in the direction of reinforcement-rate maximizing. In eight of 11 conditions, choice appeared to be governed by maximizing processes. In all cases, human concurrent ratio-interval performances differed from those of nonhumans in that matching was never obtained with local ratio-interval rate differences.  相似文献   

    

Timothy J. Trull  Michael T. Nietzel  Amanda Main 《Behavior Therapy》1988,19(4):527-538

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William M. Furey  Laura A. Basili 《Behavior Therapy》1988,19(4):555-564

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Ryan D Ward  Amy L Odum 《Journal of the experimental analysis of behavior》2008,90(3):301-311

The present experiment developed a methodology for assessing sensitivity of conditional-discrimination performance to within-session variation of reinforcer frequency. Four pigeons responded under a multiple schedule of matching-to-sample components in which the ratio of reinforcers for correct S₁ and S₂ responses was varied across components within session. Initially, five components, each arranging a different reinforcer-frequency ratio (from 19 to 91), were presented randomly within a session. Under this condition, sensitivity to reinforcer frequency was low. Sensitivity failed to improve after extended exposure to this condition, and under a condition in which only three reinforcer-frequency ratios were varied within session. In a later condition, three reinforcer-frequency ratios were varied within session, but the reinforcer-frequency ratio in effect was differentially signaled within each component. Under this condition, values of sensitivity were similar to those traditionally obtained when reinforcer-frequency ratios for correct responses are varied across conditions. The effects of signaled vs. unsignaled reinforcer-frequency ratios were replicated in two subsequent conditions. The present procedure could provide a practical alternative to parametric variation of reinforcer frequency across conditions and may be useful in characterizing the effects of a variety of manipulations on steady-state sensitivity to reinforcer frequency.  相似文献   

    

Professor  Director Marsha M. Linehan PhD  ABPP 《Suicide & life-threatening behavior》2008,38(5):483-485

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Shaelyn M.  Strachan  Lawrence R.  Brawley 《Journal of applied social psychology》2007,37(5):969-988

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Rosemary A.  Yates  Jan M.  Noyes 《Journal of applied social psychology》2007,37(6):1341-1362

This study aims to advance understanding of Internet interactions by considering the impact of Web site design and self-monitoring style on consumer preference. Four quasi-commercial Web sites were constructed containing identical information presented via a context-based (animated) or content-based (unanimated) design, and 2 advertisements of either image- or information-oriented style. Using a between-participants design, the study found that all individuals favored context-based over content-based Web site design. Matching advertising appeal to individual self-monitoring needs was found to increase Web site effectiveness of consumer preference for high self-monitors, and within Web site satisfaction and level of persuasion for low self-monitors. Results suggest that to reach their potential as a consumer-sensitive tool, Web sites must be engaging in their design and tailor their communications to accommodate individual differences.  相似文献   

    

Robyn  Brouer  Ken  Harris 《Journal of applied social psychology》2007,37(7):1418-1441

This paper examines the relationship between leader–member exchange (LMX) and experienced work tension. The dispositional moderators of positive affectivity (PA) and negative affectivity (NA) and the situational moderator of frequency of interaction with the supervisor are included. We tested these relationships in a sample of 537 employees from various organizations. Specifically, we found that high NA coupled with high LMX produced the highest levels of work tension. Additionally, low frequency of interaction with the supervisor coupled with high LMX produced the highest levels of work tension. Finally, we found that the lowest levels of work tension were reported when individuals had high PA, high LMX, and high frequency of interaction with their supervisors.  相似文献   

    

Urte  Scholz  Falko F.  Sniehotta  Benjamin  Schüz    Andries  Oeberst 《Journal of applied social psychology》2007,37(11):2706-2725

This study investigated whether an individual's plan execution self-efficacy precedes mastery of the respective action plan or vice versa. Study participants were 122 cardiac rehabilitation patients. Plan execution self-efficacy and mastery of a personal action plan on physical activity were assessed each week for 6 weeks after discharge from rehabilitation. Physical exercise was assessed 2 months after discharge. Multilevel cross-lagged panel analyses resulted in a positive effect of mastery on subsequent self-efficacy, whereas self-efficacy did not predict subsequent mastery at the within-person level. At the between-person level, however, self-efficacy predicted following physical exercise. Thus, the predictive power of self-efficacy was developed in relation to mastery of personal action plans over time. Implications for behavior change interventions are discussed.  相似文献