Effects of quantity and distribution of reward on consummately succesive negative contrast (cCSNC)

When adult rats have access to a sucrose solution 32% in daily 5 minutes sessions during to days (Phase 1), and (hen are given access to a sucrose solution 4% (Phase 2), they will consume lese of the latter solution, as compared to other animals that always experienced the 4% solution, producing a c...

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Autores principales: Pellegrini, S., Ruetti, E.M., Mustaca, A.E., Muzio, R.N.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01200534_v36_n2_p317_Pellegrini
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spelling todo:paper_01200534_v36_n2_p317_Pellegrini2023-10-03T14:58:00Z Effects of quantity and distribution of reward on consummately succesive negative contrast (cCSNC) Pellegrini, S. Ruetti, E.M. Mustaca, A.E. Muzio, R.N. Incentive value Reinforcement Successive negative contrast When adult rats have access to a sucrose solution 32% in daily 5 minutes sessions during to days (Phase 1), and (hen are given access to a sucrose solution 4% (Phase 2), they will consume lese of the latter solution, as compared to other animals that always experienced the 4% solution, producing a consummately successive negative contrast effect (cSNC). Three experiments were made to study the effects on cSNC of varying the quantity of solution ingested by the animals during Phase 1. Experiment 1 compared consummatory responding of a group with free access to 32% solution during Phase 1, with that of a group that received the same volume of 32% solution as the 4% controls. The group, that consumed less quantity of 32% solution showed an attenuated cSNC effect. Experiment.2 manipulated the quantity of consumed solution varying the extension of the daily sessions (10 minutes). In this condition there was a similar cSNC to that observed when 5 minutes sessions are used. In the Experiment 3, duration (5 versus 10 minutes) and number of sessions (5 versus 10) were varied. This experiment showed that (a) cSNC did not change as a function of session duration, and (b) cSNC was diminished in animals receiving access to fewer but longer sessions as compared to more but shorter sessions. Altogether, these results suggest that consummatory contrast (contrary to instrumental contrast), besides the discrepancy of experienced concentration, is more affected by ihe reward distribution as by reward quantity. Results are discussed in relation to changes Iti the incentive value according to the characteristics of reward administration. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01200534_v36_n2_p317_Pellegrini
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Incentive value
Reinforcement
Successive negative contrast
spellingShingle Incentive value
Reinforcement
Successive negative contrast
Pellegrini, S.
Ruetti, E.M.
Mustaca, A.E.
Muzio, R.N.
Effects of quantity and distribution of reward on consummately succesive negative contrast (cCSNC)
topic_facet Incentive value
Reinforcement
Successive negative contrast
description When adult rats have access to a sucrose solution 32% in daily 5 minutes sessions during to days (Phase 1), and (hen are given access to a sucrose solution 4% (Phase 2), they will consume lese of the latter solution, as compared to other animals that always experienced the 4% solution, producing a consummately successive negative contrast effect (cSNC). Three experiments were made to study the effects on cSNC of varying the quantity of solution ingested by the animals during Phase 1. Experiment 1 compared consummatory responding of a group with free access to 32% solution during Phase 1, with that of a group that received the same volume of 32% solution as the 4% controls. The group, that consumed less quantity of 32% solution showed an attenuated cSNC effect. Experiment.2 manipulated the quantity of consumed solution varying the extension of the daily sessions (10 minutes). In this condition there was a similar cSNC to that observed when 5 minutes sessions are used. In the Experiment 3, duration (5 versus 10 minutes) and number of sessions (5 versus 10) were varied. This experiment showed that (a) cSNC did not change as a function of session duration, and (b) cSNC was diminished in animals receiving access to fewer but longer sessions as compared to more but shorter sessions. Altogether, these results suggest that consummatory contrast (contrary to instrumental contrast), besides the discrepancy of experienced concentration, is more affected by ihe reward distribution as by reward quantity. Results are discussed in relation to changes Iti the incentive value according to the characteristics of reward administration.
format JOUR
author Pellegrini, S.
Ruetti, E.M.
Mustaca, A.E.
Muzio, R.N.
author_facet Pellegrini, S.
Ruetti, E.M.
Mustaca, A.E.
Muzio, R.N.
author_sort Pellegrini, S.
title Effects of quantity and distribution of reward on consummately succesive negative contrast (cCSNC)
title_short Effects of quantity and distribution of reward on consummately succesive negative contrast (cCSNC)
title_full Effects of quantity and distribution of reward on consummately succesive negative contrast (cCSNC)
title_fullStr Effects of quantity and distribution of reward on consummately succesive negative contrast (cCSNC)
title_full_unstemmed Effects of quantity and distribution of reward on consummately succesive negative contrast (cCSNC)
title_sort effects of quantity and distribution of reward on consummately succesive negative contrast (ccsnc)
url http://hdl.handle.net/20.500.12110/paper_01200534_v36_n2_p317_Pellegrini
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AT ruettiem effectsofquantityanddistributionofrewardonconsummatelysuccesivenegativecontrastccsnc
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