Temporal context, preference, and resistance to change

According to behavioral momentum theory, preference and relative resistance to change in concurrent-chains schedules are correlated and reflect the relative conditioned value of discriminative stimuli. In the present study, we explore the generality of this relation by manipulating the temporal context within a concurrent-chains procedure through changes in the duration of the initial links. Consistent with previous findings, preference for a richer terminal link was less extreme with longer initial links across three experiments with pigeons. In Experiment 1, relative resistance to change and preference were related inversely when responding was disrupted with response-independent food presentations during initial links, replicating a previous finding with rats. However, more food was presented with longer initial links, confounding the disrupter and initial-link duration. In Experiment 2, presession feeding was used instead and eliminated the negative relation between relative resistance to change and preference, but relative resistance to change was not sensitive to relative terminal-link reinforcement rates. In Experiment 3, with more extreme relative terminal-link reinforcement rates, increasing initial-link duration similarly decreased preference and relative resistance to change for the richer terminal link. Thus, when conditions of disruption are equal and assessed under the appropriate reinforcement conditions, changes in temporal context impact relative resistance to change and preference similarly.     

特征变化的连续性影响客体连续表征的维持

本研究采用客体回溯范式考察了特征变化的连续性对维持客体连续表征的作用。实验1和实验2分别探索了形状维度上的变化方式（不变、渐变、突变）和亮度维度上的变化方式（不变、渐变、随机变化）对客体预览利化效应的影响。在特征连续条件下（不变或渐变）,两个实验都获得了客体预览利化效应。而在特征不连续变化条件下（突变或随机变化）,该效应消失。这些结果说明特征变化的连续性同样影响客体连续表征的维持。     

Shifting foundations: religious belief change and adjustment in college students

In a sample of 154 college students, prevalence of religious belief change and its relationship to religiosity and coping variables were examined twice over the course of one month. Students who reported belief change (62%) scored higher than those who did not on measures of religiosity and fared worse on adjustment measures. Significant differences in coping strategies were noted, with the change group using more religious coping and alcohol and drugs to cope. Within the change group, a higher degree of change was related to higher levels of religiousness and religious coping, and poorer adjustment at baseline and follow-up.     

变化盲视的最新研究进展

变化盲视指观察者不能探测到客体或情境中的变化 ,是近十年以来认知心理学的研究热点之一。变化盲视可发生在各种实验条件下。例如 ,在扫视、眨眼、电影镜头切换时发生的变化以及真实情景的交互作用中发生的变化 ,观察者都有可能探测不到。本文介绍了近年来对于变化盲视的研究成果 ,包括经常使用的实验范式和对这个现象的解释等     

心理资本与建言行为的关系:变革开放性和组织支持感的作用研究

基于积极心理资本理论和情感事件理论相结合的理论视角,研究采用两阶段追踪问卷调查方法收集数据,探讨了心理资本与员工建言行为的关系以及变革开放性和组织支持感在这个过程中的作用机制。数据分析结果表明:员工心理资本显著正向影响建言行为,变革开放性在心理资本与建言行为之间起着部分中介作用,组织支持感显著调节心理资本通过变革开放性影响建言行为的间接效应,在高组织支持感的条件下,变革开放性在心理资本影响建言行为过程中的中介作用显著,但是在低组织支持感的条件下,变革开放性的中介作用不明显。。     

Our obligations to future generations: the limits of intergenerational justice and the necessity of the ethics of metaphysics

Abstract

Theories of intergenerational justice are a very common and popular way to conceptualise the obligations currently living people may have to future generations. After briefly pointing out that these theories presuppose certain views about the existence, number and identity of future people, I argue that the presuppositions must themselves be ethically investigated, and that theories of intergenerational justice lack the theoretical resources to be able to do this. On that basis, I claim it is necessary to do the ‘ethics of metaphysics’ in order to fully comprehend what, if anything, we may owe future generations. I defend these claims against some important objections.     

The Discursive Performance of Change Process in Systemic and Constructionist Therapies: A Systematic Meta‐Synthesis Review of In‐Session Therapy Discourse

Despite the emphasis of systemic and constructionist approaches on discourse and interaction, to date there has been no comprehensive overview of how change process is performed within in‐session therapeutic dialogue. In this paper, we present a qualitative meta‐synthesis of 35 articles reporting systemic and constructionist therapy process data from naturally occurring therapeutic dialogue. The studies were selected following the screening against eligibility criteria of a total sample of 2,977 studies identified through a systematic search of PsycINFO and MEDLINE databases. Thematic analysis of the 35 studies’ findings identified four main themes depicting change process performance: (a) shifting to a relational perspective, (b) shifting to non‐pathologizing therapeutic dialogue, (c) moving‐forward dialogue, and (d) the dialogic interplay of power. Findings highlight the interactional and discursive matrix within which systemic and constructionist change process occurs. Findings illuminate the value of qualitative research studies sampling naturally occurring therapeutic discourse in bringing this matrix forth, particularly when utilizing discursive methodologies like conversation or discourse analysis.     

Stability and change of basic personal values in early adulthood: An 8-year longitudinal study

We examined four types of stability and change in values during young adulthood. 270 respondents (aged 20–28, 54% female) completed the Portrait Values Questionnaire at three time points, separated by 4 years. Rank-order stability coefficients of the 10 values averaged 0.69 (T1-T2) and 0.77 (T2-T3). The mean importance of conservation, self-transcendence, and power values increased over time, the mean importance of achievement values decreased, and openness to change values remained stable. For 75% of respondents, the correlations of the within-person value hierarchies exceeded 0.45 from T1 to T2 and 0.61 from T2 to T3. Correlations among individual change scores for the 10 values formed coherent patterns of value change that mirror the circular structure of Schwartz’s theory.     

Unsignaled delay of reinforcement, relative time, and resistance to change

Two experiments with pigeons examined the effects of unsignaled, nonresetting delays of reinforcement on responding maintained by different reinforcement rates. In Experiment 1, 3-s unsignaled delays were introduced into each component of a multiple variable-interval (VI) 15-s VI 90-s VI 540-s schedule. When considered as a proportion of the preceding immediate reinforcement baseline, responding was decreased similarly for the three multiple-schedule components in both the first six and last six sessions of exposure to the delay. In addition, the relation between response rates and reinforcement rates was altered such that both parameters of the single-response version of the matching law (i.e., k and Re) were decreased. Experiment 2 examined the effects of unsignaled delays ranging from 0.5 s to 8.0 s on responding maintained by a multiple VI 20-s VI 120-s schedule of reinforcement. Response rates in both components increased with brief unsignaled delays and decreased with longer delays. As in Experiment 1, response rates as a proportion of baseline were affected similarly for the two components in both the first six and last six sessions of exposure to the delay. Unlike delays imposed between two stimulus events, the effects of delays between responses and reinforcers do not appear to be attenuated when the average time between reinforcers is longer. In addition, the disruptions produced by unsignaled delays appear to be inconsistent with the general finding that responding maintained by higher rates of reinforcement is less resistant to change.     

Gricean Belief Change

One of the standard principles of rationality guiding traditional accounts of belief change is the principle of minimal change: a reasoner's belief corpus should be modified in a minimal fashion when assimilating new information. This rationality principle has stood belief change in good stead. However, it does not deal properly with all belief change scenarios. We introduce a novel account of belief change motivated by one of Grice's maxims of conversational implicature: the reasoner's belief corpus is modified in a minimal fashion to assimilate exactly the new information. In this form of belief change, when the reasoner revises by new information p ∨ q their belief corpus is modified so that p∨q is believed but stronger propositions like p∧q are not, no matter what beliefs are in the reasoner's initial corpus. We term this conservative belief change since the revised belief corpus is a conservative extension of the original belief corpus given the new information.