ERIC Number: EJ874477
Record Type: Journal
Publication Date: 2010-Jan
Abstractor: As Provided
Reference Count: 0
Stress Impairs Optimal Behavior in a Water Foraging Choice Task in Rats
Graham, Lauren K.; Yoon, Taejib; Kim, Jeansok J.
Learning & Memory, v17 n1 p1-4 Jan 2010
Stress is a biologically significant social-environmental factor that plays a pervasive role in influencing human and animal behaviors. While stress effects on various types of memory are well characterized, its effects on other cognitive functions are relatively unknown. Here, we investigated the effects of acute, uncontrollable stress on subsequent decision-making performance in rats, using a computer vision-based water foraging choice task. Experiencing stress significantly impaired the animals' ability to progressively bias (but not maintain) their responses toward the larger reward when transitioning from equal to unequal reward quantities. Temporary inactivation of the amygdala during stress, however, blocked impairing effects on decision making.
Descriptors: Animal Behavior, Rewards, Environmental Influences, Memory, Stress Variables, Water, Behavioral Science Research, Animals, Decision Making, Responses, Brain Hemisphere Functions, Barriers
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Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Authoring Institution: N/A