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Relation Between Corticosterone And Fear-Related Behavior In Mice Selectively Bred For High Or Low Alcohol Preference, Julia Chester, Aaron M. Kirchhoff, Gustavo D. Barrenha
Relation Between Corticosterone And Fear-Related Behavior In Mice Selectively Bred For High Or Low Alcohol Preference, Julia Chester, Aaron M. Kirchhoff, Gustavo D. Barrenha
Department of Psychological Sciences Faculty Publications
Blunted cortisol responses to stress or trauma have been linked with genetic (familial) risk for both alcoholism and post-traumatic stress-disorder (PTSD). Mouse lines selectively bred for high (HAP) or low (LAP) alcohol preference may be a relevant model of genetic risk for co-morbid alcoholism and PTSD in humans. HAP mice show greater fear-potentiated startle (FPS), a model used to study PTSD, than LAP mice. The relation between corticosterone (CORT) and FPS behavior was explored in four experiments. Naïve male and female HAP2 and LAP2 mice received fear-conditioning or control treatments and CORT levels were measured before and immediately after fear-conditioning …