Organization of sex-typical patterns of defense during food protection in the rat: The role of the opponent's sex

Feeding rats defend a food item from an approaching conspecific by turning away, laterally, about 180°. Females and males use a different composition of movements and stepping patterns to perform these defensive dodges. This study was designed to examine the role of the robber's sex on the execution of sex-typical patterns of dodging. All subjects were tested with a partner of each sex. During dodging, females used the female-typical pattern of pivoting around the pelvis, and males used the male-typical midbody pivot, irrespective of the robber's sex. These findings show that the sex-typical patterns of dodging are not determined by the sex of the partner. Females and males however, differed in how they were oriented towards a same sex robber at the end of the dodge. This suggests that while male and female robbers must pose different defensive problems, these differences are dealt with by modifying the sex-typical pattern of dodging rather than by switching to the dodge pattern of the opposite sex. This further suggests that the differences in the composition of the dodge pattern in males and females are not due to extrinsic contingencies, but rather, are due to intrinsic differences in the sex-typical organization of defensive motor patterns. Aggr. Behav. 23:197–214, 1997.© 1997 Wiley-Liss, Inc.     

Emerging Genetic Counselor Roles within the Biotechnology and Pharmaceutical Industries: as Industry Interest Grows in Rare Genetic Disorders,How are Genetic Counselors Joining the Discussion?

Traditionally, the biotechnology and pharmaceutical industry (BPI) has focused drug development at the mass-market level targeting common medical issues. However, a recent trend is the development of therapies for orphan or rare disorders, including many genetic disorders. Developing treatments for genetic disorders requires an understanding of the needs of the community and translating genomic information to clinical and non-clinical audiences. The core skills of genetic counselors (GCs) include a deep knowledge of genetics and ability to communicate complex information to a broad audience, making GCs a choice fit for this shift in drug development. To date there is limited data defining the roles GCs hold within this industry. This exploratory study aimed to define the roles and motivation of GCs working in BPI, assess job satisfaction, and identify translatable skills and current gaps in GC training programs. The authors surveyed 26 GCs working in BPI in the United States; 79 % work for companies focused on rare disorders. GC positions in BPI are growing, with 57 % of respondents being the first GC in their role. GCs in BPI continue to utilize core genetic counseling competencies, though 72 % felt their training did not fully prepare them for BPI. These data suggest opportunities for exposure to BPI in GC training to better prepare future generations of GCs for these career opportunities. GC satisfaction was high in BPI, notably in areas traditionally reported as less satisfying on the National Society for Genetic Counselors Professional Status Survey: salary and advancement opportunities. BPI’s growing interest in rare disorders represents a career opportunity for GCs, addressing both historic areas of dissatisfaction for GCs and BPI’s genomic communication needs.     

Temperament and play interaction behavior across infancy

Temporal stability and convergent validity of infant temperament ratings and play interaction behaviors were examined across early to late infancy. Stability was noted for the temperament dimensions activity, rhythmicity, intensity, mood, and persistence. Stability also was noted for the infant play interaction behaviors looking, smiling, and vocalizing. In addition, convergent validity was noted for attentive-affective behaviors and comparable temperament ratings; for example, gaze aversion and nondistractability, and distress brow behavior and negative mood. Generally easier temperament infants were noted to vocalize more and to cry less frequently during their play interactions.     

Affective behavior and weight changes among hospitalized failure-to-thrive infants

The affective behavior and weight change of 12 nonorganic failure-to-thrive, 12 organic failure-to-thrive, and 12 control infants (M age = 8 months) were compared across their hospitalization. Infant affect was evaluated at approximately the beginning, middle, and endpoints of hospitalization using the Behavioral Assessment Scale. Among the failure-to-thrive infants, positive responses to stimulation at the initial assessment were related to weight loss across the course of hospitalization, while positive responses to the same stimulation at the middle assessment were related to weight gain. These unexpected results coupled with the finding that 70% of the failure-to-thrive infants gained weight and 30% lost weight across hospitalization led to a comparison between infants who gained and infants who lost weight. An increase in positive affect across hospitalization occurred only for the infants who gained weight. Paradoxically, the losers may have experienced hospital stimulation as less adequate than maternal stimulation, while the gainers may have experienced hospital stimulation as more adequate than home stimulation.     

Teenage parenting in different cultures,family constellations,and caregiving environments: Effects on infant development

Teenage parenting was investigated in different ethnic groups (Cuban and American Black), family constellations (single-parent, nuclear, and extended families), and primary caregiving arrangements (mother versus other). One hundred sixty-four infants born to a representative sample of teenage mothers were observed during interactions with their mothers and were given developmental assessments when they were 12, 18, and 24 months of age. Being a Cuban mother, living in a nuclear family, and being a secondary caregiver were each associated independently with stronger social support systems and more positive child-rearing attitudes and mother-infant play interactions. Despite these early advantages, maternal stimulation and infant performance decreased over the second year of life irrespective of ethnic group, family constellation, and caregiving arrangements.     

Vocal and facial expression matching in infants of mothers with depressive symptoms

This study investigated vocal and facial expression matching in 24 10-month-old infants. Half of the mothers had reported depressive symptoms [i.e., elevated scores on the Center for Epidemiological Studies-Depression Index (CES-D)] during the previous week. Infants were tested using a two-screen preference procedure in which they were presented side-by-side videos of different facial expressions modeled by one female reciting a children's story. A centrally located speaker was used to present a vocal expression soundtrack that matched one of the facial expressions. Separate analyses of variances (ANOVAs) were conducted to analyze the proportion total matching and proportion total looking to the happy and sad expressions. Infants of mothers who reported depressive symptoms displayed less accurate matching of the happy facial and vocal expressions and looked more to sad facial expressions compared to infants of mothers who had not reported depressive symptoms above the normal range. Infants' performance on the expression matching task appears to be related to their primary caregivers' reports of depressive symptoms during the previous week. However, other factors that may be related to the group differences also need to be considered. For example, maternal reports of depressive symptoms may be a marker for other underlying factors that may have affected their infants' performance. © 1997 Michigan Association for Infant Mental Health     

Altering withdrawn and intrusive interaction behaviors of depressed mothers

Interaction coaching was given to 44 depressed mothers who had either a withdrawn or intrusive interaction style with their infants. The intrusive and withdrawn mothers were given instructions either to imitate their infants' behavior or to keep their infants' attention. The results suggested that the specific type of interaction coaching for the specific type of depressed mother (imitation for the intrusive mothers and attention-getting for the withdrawn mothers) significantly improved their interaction behaviors with their infants.     

Mothers with Depressive Symptoms Touching Newborns

Previous research has demonstrated the positive effects of early contact on mother–infant touching behaviours. The present study investigated whether the type of maternal touching, shortly after birth, is also determined by the mother's mood state. Mothers with depressive symptoms were compared to non-depressive mothers 1 day after delivery on how they touched their newborns following an initial feeding. The results were counter-intuitive in that no differences were found between mothers with depressive symptoms and non-depressive mothers in type of maternal touching. However, mothers with depressive symptoms talked to their infants less often and talked on the phone more often. In addition, mothers with depressive symptoms showed more neutral and negative facial expressions and fewer positive and more neutral vocal expressions.