基于知识异质性团队的异质性知识网络运行机制

基于知识异质性团队的异质性知识网络是指团队内每个异质性知识成员因原来的学习经历或工作经历所建立起来的跨组织异质性知识网络.本研究旨在探明这一异质性知识网络的互动机制、创新路径与双向动态演变过程.努力将知识管理、社会网络、认知心理学理论结合起来,选择典型的高管团队,研发团队,以现场研究为主,综合运用实验研究和问卷调查等方法对异质性知识网络的三种基本形态、知识流运行特征和模式进行研究.同时考察基于网络交互记忆系统、知识冲突和个人图式拓展的多重创新路径,并在此基础上考察异质性知识网络的双向动态演变过程和相应的结网与优化策略.     

Response to commentaries on discussion paper Gene–environment interdependence

There is a high measure of agreement on the key issues concerning gene–environment interdependence. Contrary to arguments on the need for direct exact replication of findings, it is suggested that “robust” replication using the same constructs is needed. RCTs have an important role for testing for environmental mediation but cannot be used for environmental risks in childhood that show G×E in relation to adult outcomes. Instead, greater use needs to be made of natural experiments. Experimental methods are needed to study biological mediating mechanisms and these should include both animal models and human brain imaging studies. In addition to further research on G×E, further studies of gene–environment correlations are required. Many challenges remain but the future for gene–environment interdependence is bright.     

Encouraging children to think counterfactually enhances blocking in a causal learning task

According to a higher order reasoning account, inferential reasoning processes underpin the widely observed cue competition effect of blocking in causal learning. The inference required for blocking has been described as modus tollens (if p then q, not q therefore not p). Young children are known to have difficulties with this type of inference, but research with adults suggests that this inference is easier if participants think counterfactually. In this study, 100 children (51 five-year-olds and 49 six- to seven-year-olds) were assigned to two types of pretraining groups. The counterfactual group observed demonstrations of cues paired with outcomes and answered questions about what the outcome would have been if the causal status of cues had been different, whereas the factual group answered factual questions about the same demonstrations. Children then completed a causal learning task. Counterfactual pretraining enhanced levels of blocking as well as modus tollens reasoning but only for the younger children. These findings provide new evidence for an important role for inferential reasoning in causal learning.     

Temporal information and children's and adults' causal inferences

Three experiments examined whether children and adults would use temporal information as a cue to the causal structure of a three-variable system, and also whether their judgements about the effects of interventions on the system would be affected by the temporal properties of the event sequence. Participants were shown a system in which two events B and C occurred either simultaneously (synchronous condition) or in a temporal sequence (sequential condition) following an initial event A. The causal judgements of adults and 6–7-year-olds differed between the conditions, but this was not the case for 4-year-olds' judgements. However, unlike those of adults, 6–7-year-olds' intervention judgements were not affected by condition, and causal and intervention judgements were not reliably consistent in this age group. The findings support the claim that temporal information provides an important cue to causal structure, at least in older children. However, they raise important issues about the relationship between causal and intervention judgements.     

Attributions for recovery and adherence to rehabilitation following anterior cruciate ligament reconstruction: A prospective analysis

Abstract

The relationship between causal attributions for recovery and adherence was examined in a sample of 80 individuals (25 females and 55 males) undergoing rehabilitation following anterior cruciate ligament reconstruction. Participants estimated their speed of recovery and then rated their open-ended attributions for recovery on the Revised Causal Dimension Scale (McAuley, Duncan and Russell, 1992). Adherence was assessed in terms of attendance at rehabilitation sessions and practitioner ratings for the remainder of the rehabilitation period. Participants who perceived themselves as recovering rapidly attributed their recovery to more stable and personally controllable factors than participants who perceived themselves as recovering slowly. Causal dimension ratings predicted attendance at rehabilitation sessions, but not practitioner ratings of adherence. The results, which further demonstrate the relevance of causal attributions to health behavior, are compared with previous cross-sectional findings.     

Causal explanations for lack of pregnancy applying the common sense model of illness representation to the fertility context

Abstract

Objectives: The current study explored causal explanations for lack of pregnancy and association with help-seeking behaviour. Differences based on gender and country Human Development Index were examined.

Design: A mixed method design was used.

Main outcome measures: Data were drawn from the International Fertility Decision-Making Study, a cross-sectional study of 10,045 individuals (1690 men; 8355 women) from 79 countries. Respondents rated to what extent they believed their lack of pregnancy was due to something they or their partner had done/not done or other factors and described their reasons for making this rating.

Results: Respondents were aged 18–50 (M?=?31.83) years, partnered and had been trying to achieve a pregnancy/father a child for over six months (M?=?2.8 years). Men and women primarily believed their lack of pregnancy was due to medical problems or chance/bad luck. Thematic analysis of textual responses from 29.7% of the sample found that respondents focused on their personal experience or a salient life event when describing the cause of their lack of pregnancy. Women expressed more regret and helplessness about causes than men. Significant country differences were observed.

Conclusions: Individuals may develop inaccurate causal explanations based on their personal experiences. Access to accurate information is necessary to facilitate timely help-seeking.     

Causal attributions for heart disease: A systematic review

Abstract

The aims of this systematic literature review are to describe the pattern of attributions made for the causes of heart disease, and to determine how this pattern varies with the method by which attributions are elicited, and the respondent group.

A search yielded 47 papers and reports, containing 54 datasets. Lifestyle factors and chronic stress were the most common causes cited across all datasets. Attributions to stressors and fate or luck were more likely to be reported in studies that used interval rating scales than in studies that used dichotomous ratings. Cardiac patients were more likely to mention stressors and fate or luck as causes of heart disease; non-patients rated being overweight and hypertensive as more important

The differences observed between the responses of patients and non-patients may be due to actor - observer differences, or to a methodological difference: patients are often asked to report their own experiences whereas non-patients are asked about the general case.     

Manipulating Morality: Third‐Party Intentions Alter Moral Judgments by Changing Causal Reasoning

The present studies investigate how the intentions of third parties influence judgments of moral responsibility for other agents who commit immoral acts. Using cases in which an agent acts under some situational constraint brought about by a third party, we ask whether the agent is blamed less for the immoral act when the third party intended for that act to occur. Study 1 demonstrates that third‐party intentions do influence judgments of blame. Study 2 finds that third‐party intentions only influence moral judgments when the agent's actions precisely match the third party's intention. Study 3 shows that this effect arises from changes in participants' causal perception that the third party was controlling the agent. Studies 4 and 5, respectively, show that the effect cannot be explained by changes in the distribution of blame or perceived differences in situational constraint faced by the agent.     

Effects of Causal Structure on Decisions About Where to Intervene on Causal Systems

We investigated how people design interventions to affect the outcomes of causal systems. We propose that the abstract structural properties of a causal system, in addition to people's content and mechanism knowledge, influence decisions about how to intervene. In Experiment 1, participants preferred to intervene at specific locations (immediate causes, root causes) in a causal chain regardless of which content variables occupied those positions. In Experiment 2, participants were more likely to intervene on root causes versus immediate causes when they were presented with a long‐term goal versus a short‐term goal. These results show that the structural properties of a causal system can guide the design of interventions.     

Searching for Control: Priming Randomness Increases the Evaluation of Ritual Efficacy

Reestablishing feelings of control after experiencing uncertainty has long been considered a fundamental motive for human behavior. We propose that rituals (i.e., socially stipulated, causally opaque practices) provide a means for coping with the aversive feelings associated with randomness due to the perception of a connection between ritual action and a desired outcome. Two experiments were conducted (one in Brazil [n = 40] and another in the United States [n = 94]) to evaluate how the perceived efficacy of rituals is affected by feelings of randomness. In a between‐subjects design, the Scramble Sentence Task was used as a priming procedure in three conditions (i.e., randomness, negativity, and neutral) and participants were then asked to rate the efficacy of rituals used for problem‐solving purposes. The results demonstrate that priming randomness increased participants' perception of ritual efficacy relative to negativity and neutral conditions. Implications for increasing our understanding of the relationship between perceived control and ritualistic behavior are discussed.