Social mediation of puberty: an adaptive female strategy?

Females of two hamster species with contrasting degrees of gregariousness were tested for social influences on the timing of sexual maturation. When female dwarf hamsters (Phodopus sungorus campbelli), a gregarious species, were housed with an adult male at weaning, they began estrous cycles significantly earlier than when they were housed alone or with their family. Females housed with one or two female siblings at weaning matured significantly later than did all other females. Once mature, females housed with familiar males conceived later than did females housed with unfamiliar males. Rearing conditions also affected body weight; those housed with female siblings grew more slowly and attained a lower weight at 8 weeks of age than did females in all other groups. In contrast, when weanling female golden hamsters (Mesocricetus auratus), a solitary species, were housed with either an adult male, two female siblings, or alone, they did not differ in their rate of sexual maturation or growth. It is suggested that the degree to which social factors can accelerate or delay puberty is an adaptive characteristic and may be correlated with the degree of gregariousness of a species.     

Beyond Acceptance and Commitment Therapy: Process-Based Therapy

The Psychological Record - This article describes process-based therapy (PBT) as a natural evolution toward more effective and efficient mental health care. Using acceptance and commitment therapy...     

Suppressing thoughts of past events: Are repressive copers good suppressors?

We investigated the ability of individuals with a “repressive coping style” to strategically control thoughts of events from their past, which made them feel either proud or embarrassed, within the thought suppression paradigm. We examined whether (low) anxiety and (high) defensiveness interacts to influence suppression success over and above anxiety and defensiveness alone using low anxious, repressor, high anxious, and defensive high anxious groups. For the emotionally positive “proud event”, all groups avoided event‐related thoughts when instructed to suppress. For the emotionally negative “embarrassed event”, repressors reported fewer event‐related thoughts than all other groups, even when not instructed to suppress. Repressors also reported the lowest level of suppression effort and showed no “rebound”. We discuss repressors' memory performance in terms of their natural tendency to avoid negative self‐referent material, and thought and memory control in everyday life.     

Contrast and Assimilation Processes in Consumers' Evaluations of Dual Brands

This study extends the branding literature by examining the psychological processes by which consumers evaluate brand alliances. The theoretical basis for this study is the development of models of context effects in brand evaluations (Meyers-Levy & Sternthal 1993 and Levin & Levin 2000). Of particular interest is how dual branding (two restaurant brands with shared features) influences transfer of affect between brands. Although there was a contrast effect in both the separate and dual brand conditions, this contrast effect was significantly reduced in the dual brand condition. Marketing implications of forming brand alliances are discussed.     

Running: An adjunctive group therapy technique

Group therapists who work with severely disturbed patients know that group sessions are often characterized by verbal rambling, frequent and prolonged pauses and high levels of anxiety on the part of group members. This article focuses on the use of a group activity— namely, running—as an adjunct to group psychotherapy. A brief case report will illustrate the application of this innovative treatment technique; then issues that may arise when one leads a running group are dealt with in a question- and -answer format.The author wishes to express his appreciation to Mrs. Vera Kohn for editorial assistance in the preparation of this article.     

Scene structure enhances change detection

Theories of objects recognition, scene perception, and neural representation of scenes imply that jumbling a coherent scene should reduce change detection. However, evidence from the change detection literature questions whether jumbling affects change detection. The experiments reported here demonstrate that jumbling does, in fact, reduce change detection. In Experiments 1 and 2, change detection was better for normal scenes than for jumbled scenes. In Experiment 3, inversion failed to interfere with change detection, demonstrating that the disruption of surface and object continuity inherent to jumbling is responsible for reduced change detection. These findings provide a crucial commonality between change detection research and theories of scene perception and neural representation. We also discuss why previous research may have failed to find effects of jumbling.