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Reward devaluation disrupts latent inhibition in fear conditioning

Opened Access Reward devaluation disrupts latent inhibition in fear conditioning

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Autor: Casa Rivas, Luis Gonzalo de La
Mena, Auxiliadora
Ruiz-Salas, Juan C.
Quintero Sánchez, Esperanza
Papini, Mauricio R.
Departamento: Universidad de Sevilla. Departamento de Psicología Experimental
Fecha: 2018
Publicado en: Learning & Behavior, 46 (1), 49-59.
Tipo de documento: Artículo
Resumen: Three experiments explored the link between reward shifts and latent inhibition (LI). Using consummatory procedures, rewards were either downshifted from 32% to 4% sucrose (Experiments 1–2), or upshifted from 4% to 32% sucrose (Experiment 3). In both cases, appropriate unshifted controls were also included. LI was implemented in terms of fear conditioning involving a single tone-shock pairing after extensive tone-only preexposure. Nonpreexposed controls were also included. Experiment 1 demonstrated a typical LI effect (i.e., disruption of fear conditioning after preexposure to the tone) in animals previously exposed only to 4% sucrose. However, the LI effect was eliminated by preexposure to a 32%-to-4% sucrose devaluation. Experiment 2 replicated this effect when the LI protocol was administered immediately after the reward devaluation event. However, LI was restored when preexposure was administered after a 60- min retention interval. Finally, Experiment 3 showed tha...
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Cita: Casa Rivas, L.G.d.L., Mena, A., Ruiz-Salas, J.C., Quintero Sánchez, E. y Papini, M.R. (2018). Reward devaluation disrupts latent inhibition in fear conditioning. Learning & Behavior, 46 (1), 49-59.
Tamaño: 549.1Kb
Formato: PDF

URI: https://hdl.handle.net/11441/73956

DOI: 10.3758/s13420-017-0282-1

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