Download PDF by Paul F. Brain (auth.), Bruce B. Svare (eds.): Hormones and Aggressive Behavior

By Paul F. Brain (auth.), Bruce B. Svare (eds.)

This quantity is an outline of analysis studying the connection among hormones and competitive habit. The final 15 years have witnessed a tremen­ dous progress of information during this zone, but studies written through experts are almost nonexistent. This paintings is an try to supply a entire and cohesive synthesis of this literature. Chapters 1-7 supply an research of hor­ monal affects at the significant kinds of competitive habit, together with intermale, interfemale, shock-induced, maternal, territorial, and predatory aggression. the point of interest of Chapters 8-12 is an exam of the mechanisms wherein hormones may possibly act to supply adjustments in agonistic responding. Genetic, de­ velopmental, neural, and biochemical affects are thought of. it really is popular that setting, social context, and event modulate the results of hor­ mones on habit. therefore, Chapters 13-15 are designed to check the literature touching on hormone-pheromone interactions, hormonal responses to compe­ tition, and the impression of social context at the endocrine process and competitive habit. often, the foundations complex by means of behavioral endocrinologists are in line with learn in a single species, the rodent. to supply a extra comparative viewpoint and to check particularly the generality of these rules gen­ erated for rodents, Chapters 16-22 study hormone-aggression relationships in numerous species, together with fish, birds, amphibians, reptiles, infrahuman primates, people, ungulates, and bugs. This quantity will be worthy to either starting and complicated researchers in animal habit, behavioral endocri­ nology, physiological psychology, neuroendocrinology, zoology, body structure, and psychiatry.

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Interpretation then becomes difficult because elevated doses may produce atypical actions. 3. Duration of treatment. 4. Species (or even strain of animal) utilized. For example, some species may aromatize "nonaromatizable" androgens. S. Test situation. Some tests reflect effects of hormones on peripheral structures-for example, they reflect altered pheromone production, etc. PITUITARY-GONADAL INFLUENCES ON SOCIAL AGGRESSION 21 6. Prior experience. This may be evident when animals are (a) repeatedly tested, (b) used iri more than one experiment, (c) subjected to different doses throughout the test period, (d) fought against other treatment categories, or (e) prevented from developing the complete behavioral pattern before termination of testing.

In fact, the male could have been ranked either second, fifth, or seventh in the group of seven based just on different measures derived from frequencies of approach-retreat interaction. In addition, the focal role played by the male in several nonagonistic behaviors (grooming, sitting, and nose-to-mouth greetings) suggests that he could even have been assigned the top rank in the group had dominance been defined more broadly to include relative access to affiliative interactions. The top-ranking individual was a male.

Kelley, M. J. Attack and defensive behavior in the albino rat. Animal Behaviour, 1977,25,622-634. Blanchard, D. , Blanchard, R. , Takahashi, L. , & Takahashi, T. Septal lesions and aggressive behavior. Behavioral Biology, 1977,21, 157-161. Booth, J. E. Effects of 19-hydroxylated androgens on sexual differentiation in the neonatal female rat. Journal of Endocrinology, 1976,70,319-320. ]. Studies on the manner in which sex steroids influence aggressiveness in Mus musculus L. Unpublished doctoral dissertation, University of Wales, 1979.

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