Genetically determined variation in stress responsiveness in rainbow trout: behavior and neurobiology.

Genetically determined variation in stress responsiveness in rainbow trout: behavior and neurobiology. Research Abstract Details 

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Genetically determined variation in stress responsiveness in rainbow trout: behavior and neurobiology. Abstract Text:

Joachim Schjolden,Svante Winberg,

It is becoming increasingly recognized that the diversity in stressors, their intensity, predictability and the context in which they are experienced, will result in behavioral and physiological responses just as diverse. In addition, stress responses are characterized by individual variations where the physiological and behavioral reactions are associated in such a manner that distinct stress coping styles encompassing suites of correlated traits can be identified. These are often referred to as proactive and reactive stress coping styles. Proactive coping is characterized by more aggression, higher general activity and higher sympathetic activation, whereas reactive coping is characterized by immobility, lack of initiative and a higher parasympathetic/hypothalamic activation. Stable coping styles appear to coexist within populations, and these strategies appear to be largely innate. Moreover, the physiological and behavioral traits of coping styles appear to be heritable. These stress coping styles have proven to play a major role in competitive ability and subsequent social position in different species of vertebrates. However, there are also studies showing that social position can affect parameters encompassing the stress coping style of individuals. In this regard it is important, but not always easy, to distinguish between causes and effects of behavioral and physiological responses to stressors. The question raised is to what extent and rigidness stress coping styles are guided by genetic factors.

Genetically determined variation in stress responsiveness in rainbow trout: behavior and neurobiology. Publishing Authors By Initials

J Schjolden,S Winberg,

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Genetically determined variation in stress responsiveness in rainbow trout: behavior and neurobiology. Journal Published:

PUBLICATION TYPE: Review

Journal: Brain, behavior and evolution

VOLUME: 70

Page Numbers: 227-38

Journal Abbreviation: Brain Behav. Evol.

ISSN: 1421-9743

DAY: 18

MONTH: 09

YEAR: 2007

Genetically determined variation in stress responsiveness in rainbow trout: behavior and neurobiology. Information

Number of References: 99

LANGUAGE: eng

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Grant and Affiliation Information for Genetically determined variation in stress responsiveness in rainbow trout: behavior and neurobiology.

AFFILIATION: Norwegian School of Veterinary Science, Institute of Basal Sciences and Aquatic Medicine, Oslo, Norway.

Country: Switzerland

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MEDLINETA: Brain Behav Evol

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