Altruism and Aggression: Social and Biological Origins by Carolyn Zahn-Waxler, E. Mark Cummings, Ronald J. Iannotti

By Carolyn Zahn-Waxler, E. Mark Cummings, Ronald J. Iannotti

During this well timed assortment, organic and behavioral scientists tackle questions rising from new examine in regards to the origins and interconnections of altruism and aggression inside and throughout species. They discover the genetic underpinnings of affiliative and competitive orientations in addition to the organic correlates of those behaviors. they give thought to environmental variables--family styles, childrearing practices--that effect prosocial and delinquent behaviors. they usually study inner strategies akin to empathy, socio-inferential skills, and cognitive attributions, that keep watch over "kindness" and "selfishness." the 1st part makes a speciality of organic, sociobiological, and ethological techniques. It explores the software of animal types for figuring out either human and infrahuman social habit. the second one part makes a speciality of the advance, socialization, and mediation of altruism and aggression in little ones. a number of matters underly either sections. those comprise the position of attachment tactics, separation misery, reciprocal interchanges, and social play in deciding on the volume and caliber of competitive and affiliative interactions; the functionality of feelings (e.g. empathy, guilt, and anger) as instigators of altruism and aggression; and the character of intercourse transformations. numerous chapters current information on feelings that mediate altruism and aggression and likewise on styles of organization among prosocial and delinquent behaviors. The authors take an ethological standpoint, putting particular value at the have to discover altruism and aggression within the genuine lives and usual habitats of people and different animals.

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Extra info for Altruism and Aggression: Social and Biological Origins (Cambridge Studies in Social and Emotional Development)

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Imprinting and learning. Morphine has a powerful effect in sustaining social habits in the absence of any primary reinforcement, while naloxone speeds extinction of such habits in juvenile rats using a discriminated homing task (Panksepp & DeEskinazi, 1980). In studies of chick imprinting, we have found that naloxone does not block the development of a following response, although animals exhibit increased separation distress vocalizations (J. Panksepp, P. Bishop, & G. Davies, 1981, unpublished data).

Animals were individually housed at all times except during the 5-min test periods depicted. 3. 5 mg/kg of naloxone. Drug treatment was instituted from thefirsttest period, starting at 22 days of age. Animals were tested thereafter every other day until they were 50 days of age. Following the 7th test, drug conditions were reversed. After the 14th test, the original drug conditions were reinstituted for one 5-min test period. ) Taken together, however, these effects were not particularly robust, perhaps because of the power of social learning that had developed during the 4 days of baseline testing.

Bishop, unpublished data). To our knowledge, these are among the smallest doses of neuroactive agents to have yielded reliable behavioral effects. Conversely, opiate withdrawal can increase DVs (Newby-Schmidt & Norton, 1981), suggesting that social withdrawal symptoms are aggravated by the central state accompanying narcotic withdrawal (see Fig. 1). Furthermore, brain systems that mediate DVs are situated within high opiate receptor zones (Herman, 1979), and artificial activation of brain opioid systems with stimulation of the periaqueductal gray matter reduces the activity of distress vocalization circuitry (Herman & Panksepp, 1981).

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