Lecture_8_Notes-1 - Lecture 8 Notes Stress Axis The natural progression for the stress response is An animal has natural baseline levels of

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Lecture 8 Notes – Stress Axis The natural progression for the stress response is: - An animal has natural baseline levels of corticosterone - The animal is exposed to a stressor - The animal detects that stressor and perceives it as a stressor - The HPA axis responds for a given amount of time (longevity of response) - Both the initial response and the longevity of the response determine downstream physiological effects and behavioral outcomes (which can be mediated by the physiological effects) There are several ways that stress is measured in animals: 1.) Random blood sampling within 3 minutes – provides a baseline measure 2.) Behavioral or physiological stress challenge -Behavioral examples: Handling challenge Cold/heat stress challenge Food limitation Presentation of an intruder -Physiological example: ACTH challenge *Stress challenges assess how well an animal can respond to a stressor! One problem with current measurements of corticosterone is that handling to
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This note was uploaded on 04/08/2011 for the course POUL 3123 taught by Professor Navara during the Spring '09 term at University of Georgia Athens.

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Lecture_8_Notes-1 - Lecture 8 Notes Stress Axis The natural progression for the stress response is An animal has natural baseline levels of

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