Program & Abstract Book - EPFL Latsis Symposium 2009

EPFL Latsis Symposium 2009: Understanding Violence
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th e p s y c h o p a t h o l o g y o f r e p e a t e D
a g g r e s s i o n: an e X p e r i m e n t a l s t u D y
Kudryavtseva, Natalia 1
Poster Abstracts
1 Institute of Cytology and Genetics SD RAS, Novosibirsk, Russia
The sensory contact model allows the aggressive type of behavior to be
formed as a result of repeated experience of victories in daily agonistic
interactions in male mice. Some behavioral domains confirm the development
of learned aggression in the winners similar to those in humans. The
features are: repeated experience of aggression reinforced by victories;
elements of learned behavior after period of confrontations; intent, measured
by increase of the aggressive motivation prior agonistic confrontation;
decreased emotionality. Positive fighting experience in daily social
confrontations changes many characteristics of individual and social behaviors,
these having been estimated in varied situations. Neurochemical
data confirm the activation of brain dopaminergic systems and functional
inhibition of serotonergic system in the winners under influence of repeated
aggression, that create the low threshold for aggressive reaction in
even weakly provoking environment. Changes in opioidergic systems form
aggression abuse in male mice. Long experience of aggression is accompanied
by development of abnormal and violent aggression accompanying
by hyperkinetic and stereotypic reaction, hostile behavior, hostility, maniclike
states, disturbances in social recognition, pronounced anxiety, addictive
state etc [review, Kudryavtseva, 2006].
Kudryavtseva N.N. Psychopathology of repeated aggression: a neurobiological
aspect. In “Perspectives on the Psychology of Aggression” Ed. J.P.
Morgan, NOVA Science Publishers, Inc. 2006. Chapter 2, pp.35-64
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