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Successive negative contrast after partial reinforcement in the consummatory behavior of rats
(Elsevier Inc, 2004-12)
Rats given access to a 32% sucrose solution later reject a 4% solution significantly more than controls that have only received the 4% solution. In Experiment 1, this consummatory successive negative contrast (cSNC) effect ...
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 ...
Mediational role of hormones in incentive contrast
(International Society for Comparative Psychology, 2014-08)
Frustration can be defined as an emotional state generated by the omission or devaluation in the quantity or quality of an expected appetitive reward. Thus, reactivity to a reward is affected by prior experience with the ...
Do dogs experience frustration? New contributions on successive negative contrast in domestic dogs (Canis familiaris)
(Elsevier Science, 2019-05)
An unexpected change in reward quantity or quality frequently elicits a sharp decrease of responses as well as a negative emotional state. This phenomenon is called successive negative contrast (SNC) and, although it has ...
Consummatory successive negative contrast in rats: Assessment through orofacial taste reactivity responses
(Academic Press, 2018-08)
Rats exposed to a downshift from a large reward (32% sucrose) to a small reward (4% sucrose) show an abrupt and transient reduction in consumption in comparison with animals that are always exposed to the small reward. ...
Choice responses during consummatory successive negative contrast in ratsRespuestas de elección durante el contraste negativo sucesivo consumatorio en ratas
(Universidad del Rosario, 2011)
In rats, a change from a preferred solution (e.g. 32% sucrose) to a less preferred (e.g. 4%) produces an abrupt decrement in consumption below the levels of an unshifted group that always had access to the less preferred ...
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 ...
Ontogeny of consummatory successive negative contrast in rats
(John Wiley & Sons Inc, 2014-07)
Consummatory successive negative contrast (cSNC) occurs whenorganisms repeatedly exposed to a high-magnitude reward are suddenly given alow-magnitude reward. This results in a significant reduction in the consumption ofthe ...
Emotional reactivity to incentive downshift in adult rats exposed to binge-like ethanol exposure during adolescence
(Frontiers Media S.A., 2019)