Generalization peak shift in rats under conditions of positive reinforcement and avoidance

Rats were trained to discriminate between two click frequencies. One frequency was associated with either variable-interval food reinforcement (Experiment 1) or free-operant avoidance (Experiment 2). The other frequency was associated with the absence of food in Experiment 1 and the absence of shock in Experiment 2. On a click frequency generalization test, the rats in both experiments showed positive peak shift with the shape of the relative gradients being very similar. This is the first reported instance of peak shift in rats when responding was maintained by an avoidance contingency. Nondifferentially trained controls showed that this shift was due exclusively to associative processes, with nonassociative stimulus factors in themselves apparently making no contribution to increased rates at particular stimulus values. These results show the comparability of appetitive and aversive control and support the position that gradient differences do not result from approach versus avoidance per se.     

Theory of mind, inhibitory control, and preschool-age children's suggestibility in different interviewing contexts

The current study examined the relations among 3- to 5-year-olds' theory of mind, inhibitory control, and three measures of suggestibility: yielding to suggestive questions (yield), shifting answers in response to negative feedback (shift), and accuracy in response to misleading questions during a pressured interview about a live event. Theory of mind aided in the prediction of suggestibility about the live event, and inhibitory control was a moderator variable affecting the consistency of children's sensitivity to social pressure across situations. The findings indicate that theory of mind and inhibitory control predict children's suggestibility about a live event above and beyond yield, shift, and age and that the construct validity of shift may improve as children's inhibitory control develops.     

Child Psychosocial Functioning and Parent Quality of Life Among Clinically Referred Children

We examined factors that account for quality of life among parents of clinically referred children. Families (N = 201) of children (ages 3-14) referred for oppositional, aggressive, and antisocial behavior participated. Parent and family contextual factors and child psychosocial functioning (symptoms and impairment) were predicted to influence parents' quality of life. As predicted, socioeconomic disadvantage, parent stress and psychopathology, poor interpersonal relations, and limited social support were related to lower levels of quality of life. Once these factors were controlled, child psychosocial functioning also contributed positively to quality of life. Further research on quality of life in the family can have important implications for understanding the context of both child and parent functioning.     

The independence of positive and negative affect depends on the affect measure

This study examined the degree of independence between Positive Affect (PA) and Negative Affect (NA) within a given situation. The affective state was measured before and after an experimentally induced success or failure experience in an anagram task. Two types of affect measures were used to assess PA and NA: the Positive and Negative Affect Schedule (PANAS) and a Pleasantness-Unpleasantness scale. Consistent with our hypotheses, results show that PA and NA are independent when measured with the PANAS but are correlated when assessed with the other scale. These PA-NA correlations differed significantly from each other before and after emotion induction, respectively. Additional analyses indicate that both PA scales are differentially sensitive to the mood induction procedure. The findings are discussed with respect to circumplex models of emotion.     

心理主体的回归--重新评价冯特

本文针对心理学界长期以来对德国心理学家冯特的不全面评价 ,指出冯特对心理学的贡献不仅仅是创立了独立的心理学 ,他对心理学最大的贡献在于准确把握了心理学的发展方向 :关注主体。冯特以整体原则为指导 ,关注自我意识 ,并限定了实验手段的使用范围。在冯特的理论中 ,是以人为中心 ,研究方法服从于研究对象。冯特对心理学的理解对今天的心理学研究有着重要的现实影响     

Relationships Between Men’s and Women’s Body Image and Their Psychological, Social, and Sexual Functioning

This study was designed to examine the relationships between different aspects of body image and psychological, social, and sexual functioning throughout adulthood. The respondents were 211 men and 226 women (age range 18–86 years; mean = 42.26). Respondents completed measures of self-rated attractiveness, body satisfaction, body image importance, body image behaviors, appearance comparison, social physique anxiety, self-esteem, depression, anxiety, and social and sexual functioning. Body image was associated with self-esteem for all groups, but was unrelated to other aspects of psychological, social, and sexual functioning. There were some exceptions; a disturbance in body image was related to problematic social and sexual functioning among middle-aged men and to depression and anxiety symptoms in late adulthood among men and women. Middle-aged men who presented with the type of body image disturbance typical of women were more likely to have impaired interpersonal functioning. These results demonstrate that social aspects of body image appear to be important in understanding psychological functioning in later life.     

正、负性情绪的跨文化心理测量:PANAS维度结构检验

对中国大学生(N=201)和美国大学生(N=321)进行PANAS测评,以检验该量表中、英文版的因素效度。探索性因素分析会聚性地验证了该量表的PA和NA两维度结构具有跨文化一致性,中、英文量表两因子的累积方差贡献率分别为51.31％和44．25％,接近Watson等的研究结果。然而研究结果也显示测项偏差问题,因此中文量表的PA分量表的测项组成不等同于原量表。中、英文量表的PA与NA分量表同样具有较高内在一致性信度,表明其符合心理测量学要求。     

Positive affect and physical activity: Testing effects on goal setting,activation, prioritisation,and attainment

Objective: The present research tested whether incidental positive affect promotes pursuit of physical activity goals. Four key features of goal pursuit were examined – setting physical activity goals (Study 1), goal activation (Study 2), and goal prioritization and goal attainment (Study 3).

Design: Participants (N_s = 80, 81, and 59, in Studies 1–3, respectively) were randomized to positive affect (joy, hope) or neutral affect (control) conditions in each study.

Main Outcome Measures: Questionnaire measures of goal level, goal commitment, and means selection (Study 1); a lexical decision task indexed goal activation (Study 2), a choice task captured goal prioritization and MET minutes quantified goal attainment (Study 3).

Results: Study 1 showed that positive affect led to a greater number of intended physical activities, and that joy engendered greater willingness to try activities. In Study 2, a positive affect induction led to heightened activation of the physical activity goal compared to the control condition. The joy induction in Study 3 led to greater physical activity, and a trend towards greater goal prioritization.

Conclusion: These findings suggest that positive affect enhances the pursuit of physical activity goals. Implications for health behavior theories and interventions are outlined.