The Isolation of Motivational, Motoric, and Schedule Effects on Operant Performance: A Modeling Approach

Dissociating motoric and motivational effects of pharmacological manipulations on operant behavior is a substantial challenge. To address this problem, we applied a response‐bout analysis to data from rats trained to lever press for sucrose on variable‐interval (VI) schedules of reinforcement. Motoric, motivational, and schedule factors (effort requirement, deprivation level, and schedule requirements, respectively) were manipulated. Bout analysis found that interresponse times (IRTs) were described by a mixture of two exponential distributions, one characterizing IRTs within response bouts, another characterizing intervals between bouts. Increasing effort requirement lengthened the shortest IRT (the refractory period between responses). Adding a ratio requirement increased the length and density of response bouts. Both manipulations also decreased the bout‐initiation rate. In contrast, food deprivation only increased the bout‐initiation rate. Changes in the distribution of IRTs over time showed that responses during extinction were also emitted in bouts, and that the decrease in response rate was primarily due to progressively longer intervals between bouts. Taken together, these results suggest that changes in the refractory period indicate motoric effects, whereas selective alterations in bout initiation rate indicate incentive‐motivational effects. These findings support the use of response‐bout analyses to identify the influence of pharmacological manipulations on processes underlying operant performance.     

Relations of Gender, Gender-Related Personality Characteristics, and Dating Status to Adolescents�� Cross-Sex Friendship Quality

This study examined how gender, instrumentality, expressivity and dating status were associated with adolescents?? perceived cross-sex friendship quality. Two hundred sixty-two Hong Kong Chinese heterosexual teenagers (117 males, 145 females) aged 14 to 18 rated the levels of companionship, closeness, help, security and conflict in their best cross-sex friendships. Results showed that girls perceived more help but also more conflicts. Instrumentality and expressivity were consistent correlates of closeness and security, but they predicted other features differently in the two genders. Daters reported higher levels of companionship, closeness and help. Dating girls, in particular, perceived these friendships as involving the highest levels of security. These results provide some support for social role theory and interdependency across adolescents?? social relationships.     

Evidence for a sensitive period for acculturation: younger immigrants report acculturating at a faster rate

Though recent adult immigrants often seem less acculturated to their new society than people who immigrated as children, it is not clear whether this difference is driven by duration of exposure or exposure during a sensitive developmental period. In a study aimed at disambiguating these influences, community and student samples of Hong Kong immigrants to Vancouver, Canada, completed the Vancouver Index of Acculturation, a measure that assesses respondents' identification with their mainstream and heritage cultures. A longer duration of exposure was found to be associated with greater identification with Canadian culture only at younger ages of immigration, but not at later ages of immigration. Conversely, identification with Chinese culture was unaffected by either age of immigration or length of exposure to Canadian culture. These findings provide evidence for a sensitive period for acculturation: People are better able to identify with a host culture the longer their exposure to it, but only if this exposure occurs when they are relatively young.     

Anger suppression, interdependent self-construal, and depression among Asian American and European American college students

The present study tested a theoretical model of emotion regulation (Yap, Sheeber, & Allen, 2007) in a sample of Asian American and European American college students (N = 365). Specifically, the mediating role of anger suppression in the effect of temperament and family processes on depressive symptoms was tested across race and levels of interdependent self-construal (a culturally based self orientation emphasizing connectedness with others). Next, the moderation of the suppression-depression relation was tested by race and interdependent self-construal. Results indicated that the hypothesized model fit well across Asian American and European American students, as well as those with high versus low levels of interdependent self-construal. Anger suppression was a significant mediator of the hypothesized indirect effects on depressive symptoms. Moreover, race and interdependent self-construal moderated the suppression-depression link, such that Asian American status and a stronger interdependent self-construal attenuated the relation between anger suppression and depressive symptoms. Understanding both universal and culture-specific aspects of emotion regulation in the development of depressive symptoms will be essential for sound theory, future research, and effective prevention and intervention efforts across diverse populations.     

Antecedents of career exploration among Hong Kong Chinese university students: Testing contextual and developmental variables

In this study we investigate the antecedents of career exploration. We apply the perspectives of Flum and Blustein [Flum, H., & Blustein, D. L. (2000). Reinvigorating the study of vocational exploration: A framework for research. Journal of Vocational Behavior, 56, 380-404] for the first time in Hong Kong, and we also test culture-specific factors in exploration. A quantitative research study was conducted with Chinese students from a university in Hong Kong over a period of up to six months to examine relationships between career exploration and its antecedent variables. Data were obtained from a cross-sectional sample of 271 students and a longitudinal sample of 101 students who participated in either a student internship or a series of career seminars. The results demonstrated that relational support and prior career exploration were related consistently to career exploration as hypothesized, but the claim that achievement motivation is an antecedent of exploration received only limited support. The framework of Flum and Blustein [Flum, H., & Blustein, D. L. (2000). Reinvigorating the study of vocational exploration: A framework for research. Journal of Vocational Behavior, 56, 380-404] was found very relevant in our conceptualization and analysis of career exploration in the Hong Kong context. Implications of this study are discussed and suggestions are made to further extend career exploration research in Hong Kong and other Chinese societies.     

An evaluation of the effectiveness of Diploma-level training in cognitive behaviour therapy

Background

As part of the UK government’s initiative to Increase Access to Psychological Therapies (see http://www.iapt.nhs.uk/for full details of the IAPT programme) there has been an expansion in the provision of post-graduate Diploma training in cognitive behaviour therapy (CBT). Previous evaluations of such training programmes have yielded mixed results but have been limited by small sample sizes and/or limited assessment measures.

Aims

To evaluate the impact of a long-standing Diploma in CBT training programme on a variety of measures of CBT competence.

Method

Trainees’ levels of CBT skill are compared at the beginning and end of CBT training. The effect of therapist factors such as age, professional background and gender on the development of CBT competence is also examined.

Results

Results show that trainees demonstrate higher levels of CBT skills after completing the training than they did before, with the majority achieving pre-determined criteria for competence. Trainees’ gender was not related to their performance but trainees’ age showed a negative association with CBT skill (older trainees performed worse). Trainees’ professional background also had an impact on their level of CBT competence, with trainees who were clinical psychologists demonstrating the highest levels of competence across a range of measures.

Conclusions

CBT Diploma training leads to increases in the level of trainees’ CBT competence, with the majority achieving the levels demonstrated in research trials by the end of training. Thus, this training is likely to lead to improved outcomes for patients. Further research is needed to determine the most efficient ways of enhancing CBT skills.     

Showing,Analysis and the Truth-Functionality of Logical Necessity in Wittgenstein's Tractatus

This paper aims to explain how the Tractatus attempts to unifylogic by deriving the truth-functionality of logical necessityfrom the thesis that a proposition shows its sense. I first interpret the Tractarian notion of showing as the displaying ofwhat is intrinsic to an expression (or a symbol). Then I argue that, according to theTractatus, the thesis that a proposition shows its sense implies the determinacy of sense, the possibility of the complete elimination of non-primitive symbols, the analyticity thesis and the strong analyticity thesis. The picture theory emerges as what provides the only acceptable account of an elementary proposition, subject to the constraint that a proposition must show its sense. The picture theory and the analyticity thesis then entail the contingency thesis (that an elementary proposition is contingent) and the independence thesis (that elementary propositions are mutually logically independent) which, together with the strong analyticity thesis, imply that all logical propositions are tautologies.     

Cognitive-Behavioral Therapy With Chinese Americans: Research, Theory, and Clinical Practice

In this article, we discuss how to conduct cognitive-behavioral therapy with Chinese Americans. We present an integration of theory, research, and clinical practice to help mental health practitioners understand how Chinese culture may potentially influence the CBT treatment process for Chinese immigrants. Several recommendations are provided as to how to adapt and modify CBT to better meet the therapeutic needs of Chinese American clients. A case example demonstrates how cultural modifications of CBT can lead to effective psychotherapy outcomes for Chinese American clients.     

Going beyond self-esteem to predict life satisfaction: The Chinese case

The present study examined three fundamental components contributing to life satisfaction among Chinese college students − who you are, how you conceive of yourself, and how you understand the world in which you function. To account for life satisfaction beyond self-esteem, we used two comprehensive measures of personality and social beliefs that have recently established their cross-cultural applicability: the Cross-Cultural Personality Assessment Inventory and the Social Axioms Survey. It was found that the personality variables tapping interpersonal relationship and social axioms tapping perceptions of social contexts were significantly related to life satisfaction over and above its relationship to self-esteem. These and other constructs were discussed as emic and possibly pancultural contributors to subjective well-being.