1. Foot shock facilitates reward seeking in an experience-dependent manner.
- Author
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Strickland, JA, Dileo, AD, Moaddab, M, Ray, MH, Walker, RA, Wright, KM, and McDannald, MA
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REWARD (Psychology) , *FOOT , *LABORATORY rats , *ELECTRIC shock , *ANIMAL behavior - Abstract
• Experience shapes reward seeking around foot shock. • Foot shock suppresses reward seeking with limited experience (1–2 sessions). • Foot shock facilitates reward seeking with continued experience (10–16 sessions). • Foot shock facilitation is unrelated to fear discrimination and foot shock suppression. Animals organize reward seeking around aversive events. An abundance of research shows that foot shock, as well as a shock-associated cue, can elicit freezing and suppress reward seeking. Yet, there is evidence that experience can flip the effect of foot shock to facilitate reward seeking. Here we examined cue suppression, foot shock suppression and foot shock facilitation of reward seeking in a single behavioural setting. Male Long Evans rats received fear discrimination consisting of danger, uncertainty, and safety cues. Discrimination took place over a baseline of rewarded nose poking. With limited experience (1–2 sessions), all cues and foot shock suppressed reward seeking. With continued experience (10–16 sessions), suppression became specific to shock-associated cues, foot shock briefly suppressed, then facilitated reward seeking. Our results provide a means of assessing positive properties of foot shock, and may provide insight into maladaptive behaviour around aversive events. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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