Hormonal regulation of aggression: Evidence for a relationship among genotype,receptor binding,and behavioral sensitivity to androgen and estrogen

Gonadectomized male mice from the CF-1, CFW, and CD-1 strains were exposed to different androgens (testosterone, dihydrotestosterone, methyltrienolone) or estrogens (estradiol, diethylstilbestrol) and tested for aggressive behavior. Genetic differences in sensitivity to the aggression-promoting property of the various treatments were found. CF-1 mice responded to either androgenic or estrogenic stimulation, CFW males were most sensitive to the estrogen treatments, while CD-1 males responded to androgen but were relatively insensitive to the aggression-promoting property of estrogens. These data suggest that there may be multiple aggression-activating systems and that the functional pathway varies with genotype. Additional experiments examined whether receptor binding in the hypothalamic-preoptic-septal region was related to the genetic differences in behavioral responsiveness. The binding data suggested that sensitivity to the aggression-promoting property of estrogens was related to either a higher concentration of binding sites or to higher affinity binding between estrogen and its receptor. A systematic relationship between dihydrotestosterone binding and behavioral responsiveness to androgen was not found.     

Network Analysis in Community Psychology: Looking Back,Looking Forward

Network analysis holds promise for community psychology given the field's aim to understand the interplay between individuals and their social contexts. Indeed, because network analysis focuses explicitly on patterns of relationships between actors, its theories and methods are inherently extra‐individual in nature and particularly well suited to characterizing social contexts. But, to what extent has community psychology taken advantage of this network analysis as a tool for capturing context? To answer these questions, this study provides a review of the use network analysis in articles published in American Journal of Community Psychology . Looking back, we describe and summarize the ways that network analysis has been employed in community psychology research to understand the range of ways community psychologists have found the technique helpful. Looking forward and paying particular attention to analytic issues identified in past applications, we provide some recommendations drawn from the network analysis literature to facilitate future applications of network analysis in community psychology.     

Using computer‐assisted instruction to increase the eye gaze of children with autism

Many children diagnosed with autism spectrum disorders have difficulty making appropriate eye contact and engaging in joint attention. The current study evaluated a computer‐assisted instruction package (pairing visual stimuli with vocal stimuli) as a novel treatment to improve the eye gaze accuracy in 3 elementary school children with autism. The researchers measured the latency from a recorded verbal stimulus to the students making eye contact with pictures of familiar individuals displayed on a computer screen, and the duration for which eye gaze on the stimulus was maintained. An automated infrared camera system for measuring eye gaze was utilized that eliminated the need for an instructor to make subjective judgments regarding participants' eye gaze. For all three participants, duration of eye contact increased, and latency to responding decreased following exposure to the computer‐assisted instruction. The implications of these findings for the treatment of individuals with autism are discussed, along with suggestions for future research on the topic.     

Assessing gender differences in the relationship between religious coping responses and alcohol consumption

The purpose of this study is to see if the use of religious coping responses is associated with alcohol intake. In addition, tests are conducted to see if the relationship between religion and alcohol use varies by gender. Data from a recent nationwide survey (N?=?2173) indicate that greater use of religious coping responses is associated with less alcohol consumption. The findings further reveal that even though women use religious coping responses more often than men, the relationship between the use of religious coping responses and alcohol consumption is stronger for men than for women. This suggests that, with respect to alcohol consumption, men may benefit more from using religious coping responses than women. The theoretical implications of these results are discussed.     

Assessing the Relationships among Religion,Humility, Forgiveness,and Self-Rated Health

The purpose of this study is estimate a model that contains five hypotheses: (1) people who attend worship services more often will receive more spiritual support; (2) individuals who receive more spiritual support will be more humble; (3) people who are more humble will be more likely to forgive; (4) people who are more forgiving will find a greater sense of meaning in life; and (5) a greater sense of meaning in life will be associated with better self-rated health. Data from a nationwide survey of adults age 18 and older (N = 1,744) provide support for each hypothesis.