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Effects of pretraining treatment with testosterone on successive and anticipatory negative contrast
(Pergamon-Elsevier Science Ltd, 2012-02)
Previous research indicated that the suppression of consummatory behavior that follows incentive downshift in male rats is attenuated by testosterone (T) administration during training. The present experiments were designed ...
Negative anticipatory contrast: Does it involve anticipation of an impending reward?
(ELSEVIER SCIENCE BV, 2011)
Negative anticipatory contrast (NAC) corresponds to the suppression in consumption of a first rewarding substance (e.g., saccharin 0.15%) when it is followed daily by a second preferred substance (e.g., sucrose 32%). The ...
Posttrial corticosterone administration enhances the effects of incentive downshift: Exploring the boundaries of this effect
(American Psychological Association, 2009-12)
Posttrial administration of corticosterone was previously shown to enhance consummatory successive negative contrast (cSNC) in rats. The present series of experiments provides additional information that helps determine ...
Successive negative contrast in a bird: starlings' behaviour after unpredictable negative changes in food quality
(Elsevier, 2009-01)
In a successive negative contrast (SNC) procedure, subjects used to a familiar contingency are unexpectedly shifted to a less favourable one. Typically, mammals in the new condition show lower anticipatory and consummatory ...
Dominance hierarchies and social status ascent opportunity: Anticipatory behavioral and physiological adjustments in a Neotropical cichlid fish
(Pergamon-Elsevier Science Ltd, 2012-07)
In this work we characterized the social hierarchy of non-reproductive individuals of Cichlasoma dimerus (Heckel, 1840), independently for both sexes, and its relationship to the opportunity for social status ascent. Female ...
Dominance hierarchies and social status ascent opportunity: Anticipatory behavioral and physiological adjustments in a Neotropical cichlid fish
(PERGAMON-ELSEVIER SCIENCE LTDOxford, 2012-04)
In this work we characterized the social hierarchy of non-reproductive individuals of Cichlasoma dimerus (Heckel, 1840). independently for both sexes, and its relationship to the opportunity for social status ascent. Female ...
Incentive relativity in middle aged rats
(Elsevier Ireland, 2014-01)
Response to a reinforcer is affected by prior experience with different reward values of that reward, a phenomenon known as incentive relativity. Two different procedures to study this phenomenon are the incentive downshift ...
Discriminación de sabores en procedimientos de cambios sorpresivos del reforzador durante la temprana ontogenia de la rataTaste discrimination during the early ontogeny of the rat in procedures involving surprising changes in reinforcement
(Konrad Lorenz Fundación Universitaria, 2012-06)
Se evaluó la respuesta consumatoria de ratas infantes ante diferentes magnitudes de soluciones azucaradas y luego de su devaluación o extinción con el objetivo de detectar la preferencia de las soluciones y la existencia ...
Análise das características de perfil e dos indicadores de desempenho das universidades federais brasileiras
(Universidade Federal de Minas GeraisUFMG, 2016-08-22)
The administrative autonomy of the Federal Institutions of Higher Education (IEFES), prerogative guaranteed by the Federal Constitution of 1988, can be an outlet to improve the performance of higher education. In contrast ...
Psicofísica comparada: Efectos de la pérdida de incentivos y administración de etanol en ratasComparative Psychophysic: Loss of incentive effects in normal rats injected with ethanol
(Centro Interamericano de Investigaciones Psicológicas y Ciencias Afines, 2009-12)
Un problema de la Psicofísica particularmente relevante para el estudio de procesos de condicionamiento es el de la re lación entre las propiedades de refuerzo y físicas de los es tímulos. Papini y Pellegrini (2006) ...