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Social and Behavioral Sciences Commons™
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Full-Text Articles in Social and Behavioral Sciences
The Role Of Dentate Gyrus Pituitary Adenylate Cyclase Activating Polypeptide (Pacap) In Contextual Fear Discrimination, Samantha Kelly Moriarty
The Role Of Dentate Gyrus Pituitary Adenylate Cyclase Activating Polypeptide (Pacap) In Contextual Fear Discrimination, Samantha Kelly Moriarty
Graduate College Dissertations and Theses
When dysregulated, neural systems important for fear behaviors can contribute to mental health disorders such as anxiety, phobias, and post-traumatic stress disorder (PTSD). In PTSD, a myriad of symptoms is possible, but a hallmark feature of the disorder is generalizing fear. This occurs when fear is experienced inappropriately in relation to the environment or circumstances. To study this behavior in rodent models, contextual fear conditioning is used. Contextual fear conditioning is a learning theory preparation where rodents are conditioned with an aversive stimulus such as foot-shock in one distinct context (A), while concurrently being exposed to a safe context (B). …
Contextual Control Of Instrumental Actions And Habits Following Retroactive Interference, Michael Steinfeld
Contextual Control Of Instrumental Actions And Habits Following Retroactive Interference, Michael Steinfeld
Graduate College Dissertations and Theses
It is commonly accepted that instrumental responses that have been extinguished can return. For example, in a phenomenon known as the renewal effect, extinguished behaviors return upon removal from the extinction context. Another well-accepted notion is that instrumental behaviors can be thought of as goal-directed actions, which form over the course of moderate amounts of practice or training, and habits, which form after extended practice. Despite years of research on both topics, what happens to actions and habits following extinction is poorly understood. The present experiments examined the renewal of actions and habits following retroactive interference paradigms such as extinction …