Bases neurobiológicas del contraste negativo sucesivo

Successive negative contrast (SNC) is one of the paradoxical effects of reinforcement, resulting from the sudden lessening of the quality/quantity of an expected reinforcer. The present work is a review of the existing information concerning the neurobiological basis of SNC, using both instrumental...

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Autores principales:	Bentosela, M., Muzio, R.N., Mustaca, A.E.
Formato:	JOUR
Materias:	Neurobiological bases Prefontal cortex Reinforcement Successive negative contrast
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_01200534_v33_n3_p299_Bentosela
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_01200534_v33_n3_p299_Bentosela
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spelling	todo:paper_01200534_v33_n3_p299_Bentosela2023-10-03T14:58:00Z Bases neurobiológicas del contraste negativo sucesivo Bentosela, M. Muzio, R.N. Mustaca, A.E. Neurobiological bases Prefontal cortex Reinforcement Successive negative contrast Successive negative contrast (SNC) is one of the paradoxical effects of reinforcement, resulting from the sudden lessening of the quality/quantity of an expected reinforcer. The present work is a review of the existing information concerning the neurobiological basis of SNC, using both instrumental and consummatory procedures. The effects of drugs, cerebral lesions, electrical simulation, and electrophysiological studies of this phenomenon are also analyzed. Most research has been focused on the evaluation of emotional factors involved in SNC, and only a minor attention has been paid to the cognitive ones (such as the internal representation of reinforcers, memory of previous reinforces, and reinforcement expectancy). Pharmacological studies revealed that SNC attenuates or is even abolished when tranquilizing drugs are used, and is not affected neither by antidepressives nor by neuroleptics. Besides, the GABAergic and the cholinergic systems participe in the mnemonic modulation for reinforcement change. Lesion studies showed that the septum, hyppocampus and cingulum might be involved in instrumental SNC, while the amygdala and the pontine parabrachial nuclei participate in the instrumental SNC. Finally, electrophysiological studies suggest that the prefrontal cortex plays an active role in the expression of these phenomena. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01200534_v33_n3_p299_Bentosela
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Neurobiological bases Prefontal cortex Reinforcement Successive negative contrast
spellingShingle	Neurobiological bases Prefontal cortex Reinforcement Successive negative contrast Bentosela, M. Muzio, R.N. Mustaca, A.E. Bases neurobiológicas del contraste negativo sucesivo
topic_facet	Neurobiological bases Prefontal cortex Reinforcement Successive negative contrast
description	Successive negative contrast (SNC) is one of the paradoxical effects of reinforcement, resulting from the sudden lessening of the quality/quantity of an expected reinforcer. The present work is a review of the existing information concerning the neurobiological basis of SNC, using both instrumental and consummatory procedures. The effects of drugs, cerebral lesions, electrical simulation, and electrophysiological studies of this phenomenon are also analyzed. Most research has been focused on the evaluation of emotional factors involved in SNC, and only a minor attention has been paid to the cognitive ones (such as the internal representation of reinforcers, memory of previous reinforces, and reinforcement expectancy). Pharmacological studies revealed that SNC attenuates or is even abolished when tranquilizing drugs are used, and is not affected neither by antidepressives nor by neuroleptics. Besides, the GABAergic and the cholinergic systems participe in the mnemonic modulation for reinforcement change. Lesion studies showed that the septum, hyppocampus and cingulum might be involved in instrumental SNC, while the amygdala and the pontine parabrachial nuclei participate in the instrumental SNC. Finally, electrophysiological studies suggest that the prefrontal cortex plays an active role in the expression of these phenomena.
format	JOUR
author	Bentosela, M. Muzio, R.N. Mustaca, A.E.
author_facet	Bentosela, M. Muzio, R.N. Mustaca, A.E.
author_sort	Bentosela, M.
title	Bases neurobiológicas del contraste negativo sucesivo
title_short	Bases neurobiológicas del contraste negativo sucesivo
title_full	Bases neurobiológicas del contraste negativo sucesivo
title_fullStr	Bases neurobiológicas del contraste negativo sucesivo
title_full_unstemmed	Bases neurobiológicas del contraste negativo sucesivo
title_sort	bases neurobiológicas del contraste negativo sucesivo
url	http://hdl.handle.net/20.500.12110/paper_01200534_v33_n3_p299_Bentosela
work_keys_str_mv	AT bentoselam basesneurobiologicasdelcontrastenegativosucesivo AT muziorn basesneurobiologicasdelcontrastenegativosucesivo AT mustacaae basesneurobiologicasdelcontrastenegativosucesivo
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Bases neurobiológicas del contraste negativo sucesivo

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