Cognitive culture: theoretical and empirical insights into social learning strategies

Research into social learning (learning from others) has expanded significantly in recent years, not least because of productive interactions between theoretical and empirical approaches. This has been coupled with a new emphasis on learning strategies, which places social learning within a cognitive decision-making framework. Understanding when, how and why individuals learn from others is a significant challenge, but one that is critical to numerous fields in multiple academic disciplines, including the study of social cognition.     

Category norm data and relationships with lexical frequency and typicality within verb semantic categories

The aim of the present study was to expand the scope of category norm and typicality data to include verbs for use when investigating semantic memory in fields such as linguistics, psychology, and aphasiology. Two experiments were conducted. In the first, participants were asked to list verbs within 10 semantic categories (e.g. breaking, cleaning, cooking, etc.) and 10 noun categories (e.g. animals, fruit, tools, etc.). In the second experiment, participants were asked to rate the typicality of verbs within 8 of the previously investigated verb categories. Although participants listed fewer verbs in verb categories than nouns in noun categories, the overall patterns with regard to correlation analyses between production frequency, mean rank of responses, lexical frequency, and typicality were consistent with those observed in noun categories. These patterns are also consistent with those observed in previous research. Potential similarities and differences between nouns and verbs, as well as future applications of such data, are discussed.     

Extending the challenge-hindrance model of occupational stress: The role of appraisal

Interest regarding the challenge-hindrance occupational stress model has increased in recent years, however its theoretical foundation has not been tested. Drawing from the transactional theory of stress, this study tests the assumptions made in past research (1) that workload and responsibility are appraised as challenges and role ambiguity and role conflict are appraised as hindrances, and (2) that these appraisals mediate the relationship between these stressors and outcomes (i.e., strains, job dissatisfaction, and turnover intentions). For a sample of 479 employees, we found that although workload, role ambiguity, and role conflict could be appraised primarily as challenges or hindrances, they could also simultaneously be perceived as being both to varying degrees. Support was also found for a model in which primary appraisal partially mediated the stressor-outcome relationship.     

Validation of the Japanese Version of the Modified Balanced Time Perspective Scale: Factor Structure,Reliability, and Validity Results1

A balanced time perspective (BTP) is defined as a frequent and equal tendency to think positively about both one's past and future. A BTP is related to greater psychological well-being, such as life satisfaction and wisdom, and these BTP associations may vary cross-culturally, although few studies of BTP in non-Western countries exist. In order to advance cross-cultural comparisons of BTP, an important methodological step is to validate BTP measures in different cultures. This study aimed to develop and validate a Japanese version of the modified Balanced Time Perspective Scale (mBTPS). Japanese participants (N = 1,020, aged 18–79 years) completed the mBTPS-J, along with Japanese versions of the Zimbardo Time Perspective Inventory (ZTPI-J) and measures of well-being (life satisfaction and wisdom scales). Factor analysis of the mBTPS-J resulted in a 27-item mBTPS-J consisting of Past, Present, and Future subscales. Correlations between the relevant mBTPS-J and ZTPI-J subscales, and with the well-being measures, supported both convergent and predictive validity, respectively. The demonstrated psychometric strengths of the mBTPS-J will allow for specific testing of important cross-cultural questions.     

The role of self-blame for trauma as assessed by the Posttraumatic Cognitions Inventory (PTCI): a self-protective cognition?

The Posttraumatic Cognitions Inventory (PTCI) assesses cognitions hypothesised to be associated with poor recovery from traumatic experiences and the maintenance of PTSD. The validity of the PTCI has received good support but doubts have been raised about its Self-BLAME subscale. The main aim of the present study was to test the ability of the PTCI subscales to discriminate between traumatised individuals with and without PTSD and to predict posttraumatic symptom severity. Participants (N=63) who had experienced a traumatic event were recruited via the media and completed the PTCI and self-report measures of PTSD and depression symptoms. Full criteria for a diagnosis of PTSD were met by 37 but not by the other 26. There were significant differences between these two groups on the total PTCI score and the Negative Cognitions About SELF and the Negative Cognitions About the WORLD subscales, but not on the Self-BLAME subscale. The two groups were discriminated by the PTCI subscales with 65% accuracy and the multiple correlation (R=.68) between the subscales and posttraumatic symptom severity was highly significant. However, in these analyses, higher scores on the Self-BLAME subscale were associated with less risk of a diagnosis of PTSD and with less posttraumatic symptomatology. Possible interpretations of these results, in terms of statistical suppressor effects and the protective role of behavioural self-blame, are discussed.     

Development of paw preference in rats following unilateral cortical ablations in infancy.

Rats which received unilateral anterior cortical lesions in infancy manifested a preference for the paw contralateral to the intact hemisphere when tested at 5 wk. and at 10 wk. of age. That this effect was locus specific and was not due to a change in the over-all balance of activity between the hemispheres was indicated by the fact that similar lesions made in the posterior cortex did not influence which paw the animals subsequently preferred. The posterior lesions, however, may have lowered the frequency of ambidexterity, a finding interpreted in terms of theoretical arguments concerning bilateral symmetry and the discrimination and memory of left and right.     

An in depth, astute, comprehensive, and erudite attempt at categorization of stuttering theorists

The purpose of this paper is to make the reader aware of the various theoretical categories into which people who have been productive in the area of stuttering can be “slotted.” Readers are encouraged to read the characteristics, as I conceive of them, of each group of people and then see where their favorite “authorities” (which in many cases will undoubtedly include themselves) fit.