Effects of preweaning predatory or consummatory experience and litter size on cricket predation in northern grasshopper mice (Onychomys leucogaster)

Preweaning exposure to cricket killing and consumption, but not consumption alone, facilitated postweaning cricket predation. This facilitatory effect did not result from kill-sharing by the parents or from food competition among the offspring. The results were strongly influenced by litter size. Small litters (N = 3–4) were strongly facilitated in all measures of predatory behavior when compared to litters of five to six mice. Since smaller litters of this species also show much higher levels of play behavior, it is suggested that play frequency may strongly facilitate later predatory behavior.     

Teaching psychological knowledge and skills to family physicians

Psychological problems (e.g., anxiety, depression, substance abuse) are prevalent in primary care medical settings. Family physicians (FPs) treat more patients than any other primary care medical specialists. Thus, FPs can play an extremely important role in providing psychological services to their patients. In contrast to other specialists (e.g., internists, obstetricians), FPs are required to complete behavioral science training in their residencies. In this paper, we describe standard undergraduate, graduate, and postgraduate training of FPs. We present our unique program for teaching psychological principles and skills to family practice residents at the University of Kansas Medical Center. And finally, we introduce an instrument, the Interview Rating Scale (IRS), for evaluating the interviewing skills of physicians and residents.