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71.
Carlos F. Aparicio William M. Baum Christine E. Hughes Raymond C. Pitts 《Journal of the experimental analysis of behavior》2016,105(2):322-337
Studies of choice holding food‐amount ratio constant while varying food‐rate ratio within sessions showed that local changes in preference depend on relative amount of food. The present study investigated whether sensitivity of choice to food‐rate ratio and sensitivity to food‐amount ratio are independent of one another when food‐rate ratios are varied across sessions and food‐amount ratios are varied within sessions. Food deliveries for rats’ presses on the left and right levers were scheduled according to three different food‐rate ratios of 1:1, 9:1, and 1:9; each food‐rate ratio lasted for 106 sessions and was arranged independently of seven food‐amount ratios (7:1, 6:2, 5:3, 4:4, 3:5, 2:6, and 1:7 food pellets) occurring within sessions in random sequence. Each amount ratio lasted for 10 food deliveries and was separated from another by a 60‐s blackout. Sensitivity to rate ratio was high (1.0) across food deliveries. Sensitivity to amount ratio was low when food rates were equal across alternatives, but was high when rate ratio and amount ratio opposed one another. When rate ratio and amount ratio went in the same direction, choice ratio reached an elevenfold limit which reduced sensitivity to approximately zero. We conclude that three factors affect sensitivity to amount: (1) the limit to preference, (2) the equal effect on preference of amounts greater than four pellets, and (3) the absence of differential effects of switches in amount in the equal‐rates (1:1) condition. Taken together, these findings indicate that rate and amount only sometimes combine independently as additive variables to determine preference when amount ratios vary frequently within sessions. 相似文献
72.
Stephen Ferrigno Kelly D. Hughes Jessica F. Cantlon 《Psychonomic bulletin & review》2016,23(1):141-147
Basic quantitative abilities are thought to have an innate basis in humans partly because the ability to discriminate quantities emerges early in child development. If humans and nonhuman primates share this developmentally primitive foundation of quantitative reasoning, then this ability should be present early in development across species and should emerge earlier in monkeys than in humans because monkeys mature faster than humans. We report that monkeys spontaneously make accurate quantity choices by 1 year of age in a task that human children begin to perform only at 2.5 to 3 years of age. Additionally, we report that the quantitative sensitivity of infant monkeys is equal to that of the adult animals in their group and that rates of learning do not differ between infant and adult animals. This novel evidence of precocious quantitative reasoning in infant monkeys suggests that human quantitative reasoning shares its early developing foundation with other primates. The data further suggest that early developing components of primate quantitative reasoning are constrained by maturational factors related to genetic development as opposed to learning experience alone. 相似文献
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74.
Reappraisal Buffers the Association Between Stress and Negative Mood Measured Over 14 Days: Implications for Understanding Psychological Resilience
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Judith Johnson Daryl B. O'Connor Christopher Jones Christopher Jackson Gareth J. Hughes Eamonn Ferguson 《欧洲人格杂志》2016,30(6):608-617
Reappraisal is thought to be an adaptive emotion regulation strategy, and research suggests that individuals who habitually reappraise report more positive patterns of affect overall. However, some experimental studies indicate that a greater tendency to reappraise can exacerbate stress response, and it is unclear whether reappraisal confers resilience or exacerbates response to naturally occurring stressors. In order to address this, the present study investigated whether reappraisal prospectively moderated the association between daily stressors and daily negative mood measured over 14 days. Participants (n = 236) completed a measure of reappraisal at baseline, before completing daily online entries of stress and positive and negative mood. Data were analysed using multilevel modelling. Results suggested that reappraisal moderated the association between stress and negative mood, such that higher levels of reappraisal were associated with lower levels of negative mood in response to stress. Moreover, higher reappraisal was also independently associated with lower levels of daily negative mood and higher levels of positive mood. These results suggest that higher reappraisal may confer resilience to stress. Copyright © 2016 European Association of Personality Psychology 相似文献
75.
Faking revisited: Exerting strategic control over performance on the Implicit Relational Assessment Procedure
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Sean Hughes Ian Hussey Bethany Corrigan Katie Jolie Carol Murphy Dermot Barnes‐Holmes 《European journal of social psychology》2016,46(5):632-648
Across four studies, we demonstrate that effects obtained from the Implicit Relational Assessment Procedure, like those obtained from other indirect procedures, are not impervious to strategic manipulation. In experiment 1, we found that merely informing participants to “fake” their performance without providing a concrete strategy to do so did not eliminate, reverse, or in any way alter the obtained outcomes. However, when those same instructions orientated attention toward the core parameters of the task, participants spontaneously derived a strategy that allowed them to eliminate their effects (experiment 2). When the participants were provided with a viable response strategy, they successfully reversed the direction of their overall Implicit Relational Assessment Procedure effect (experiment 3). By refining the nature of those instructions, we managed to target and alter individual trial‐type effects in isolation with some success (experiment 4). 相似文献
76.
Leading members of the Slavophile circle shared a commonWeltanschauung, fostered by a complex reaction to thesocial and political changes taking place in mid-nineteenth-centuryRussia. There was, however, considerable diversity in their views aboutthe character and value of the Russian state apparatus. While theyall criticised the bureaucratic ethos of the tsarist state,a number of them recognised that it played a critical role in stabilising deep-seated social tensions in Russian society. Inthe late 1850s, some members of the Slavophile circle also cameto recognise that the state apparatus could play a positiverole in eliminating serfdom. Nevertheless, in the wake ofthe Emancipation Edict of 1861, conflict over the roleof the Russian state became the most divisive issuefor surviving members of the Slavophile circle. 相似文献
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Synthese - This article argues that there can be epistemic dilemmas: situations in which one faces conflicting epistemic requirements with the result that whatever one does, one is doomed to do... 相似文献
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80.
Stephanie A. Robinson Alycia N. Bisson Matthew L. Hughes Jane Ebert Margie E. Lachman 《Psychology & health》2019,34(2):232-254
Objective: A common barrier to exercise is a perceived lack of time. The current pilot study examined the effects of an implementation intention intervention to enhance exercise self-efficacy, increase confidence to exercise when facing time constraints, and increase physical activity in middle-aged adults (n?=?63, aged 35–69). Design: Participants received a pedometer (Fitbit) to objectively measure activity and were randomly assigned to either a control or intervention condition. After a 1-week baseline, the intervention condition received instructions to plan how, where, and when they would add steps to their daily routine to meet their step goal, using personalised schedules and maps. Both groups were contacted nightly via email. Main Outcome Measures: Physical activity (steps and time spent in moderate-to-vigorous activity), goal achievement, exercise self-efficacy, time-relevant exercise self-efficacy and affect. Results: Compared to the control, the intervention condition significantly increased in steps, time spent in moderate-to-vigorous activity, and time-relevant exercise self-efficacy. Goal achievement was related to greater time-relevant exercise self-efficacy and more positive affect at the daily level. Conclusion: Findings suggest that the personalised planning intervention increased physical activity and confidence in achieving physical activity goals under time constraints. Avenues for future directions, especially for producing more sustained effects, are discussed. 相似文献