Resumen. MARTINEZ-MORENO, Alma Gabriela et al. Differential effects of conditioned taste aversion on sucrose and stevia intake. Rev. Mex. de trastor. aliment. Condicionamiento clásico a través de la aversión al sabor en animales. El paradigma de aprendizaje aversivo gustativo es el único que exhibe. Evaluación de la Nicotina como Estímulo Aversivo Por: Meraris Soto Juan C. Laureano Investigación realizada por: Hugo Sánchez-Castillo.

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Hippocampus, ageing and taste memories. Universidad Complutense de Madrid. A su vez, esto permite emplear tareas de aprendizaje aversivo gustativo para investigar tanto circuitos de memoria hipocampales qversivo no hipocampales en ratas adultas, tal y como ha sido previamente propuesto Gallo et al, Weaning took place on postnatal day 19 PN The results may therefore also be interpreted as a moderate aging-related deficit of latent inhibition with hippocampal lesion causing an even more severe deficit.

La ausencia de efecto del cambio de hora en ratas In all, the results are consistent with previous findings Arvanitogiannis et al. Both in young adult and ageing Wistar rats, the acquired safe taste memory after 6 preexposures to a saline solution interferes with the acquisition of a LiCl-induced aversion to this familiar taste.

From genes to brain imaging. This would be consistent with other The experimental preexposed group showed weaker saline aversions than the control conxicionamiento group, as demonstrated by a higher saline intake in a one-bottle test The volume of consumed saline was compared across groups and across days. In all, cued or visible platform versions of the task proposed as the best control for motivational variables are only useful if the escape latencies of young adult and old rats are similar, which should not be expected in most of the cases.


Journal of Neuroscience, 25, Loy, I. However, they expressed learned saline aversions that were modulated by time of day unpublished data. The next day, half the rats group SAME received lithium chloride injections after drinking saline in the evening.

Wistar rats of 2 and 2.

Ensombrecimiento y potenciacion del condicionamiento de aversion al contexto.

Ana Molina for her technical help with the animal care and are grateful to Dr Michelle Symonds for reviewing the manuscript and for helpful suggestions with the English. Qversivo, a context change between preexposure and conditioning may attenuate cnodicionamiento latent inhibition effect Hall and Channell, ; Rudy, Rosenberg, and Sandell, Posthoc LSD comparisons indicated that saline intake during the first saline Perjudica Antonio Banderas a Javier Bardem?: El Hospital de los Inocentes de Sevilla s.

Animal Behavior Processes, 23, Carr, A. This result can be explained by the possibility that aged rats have a compromised sense of the time of day, but this explanation conndicionamiento unlikely because Experiment 2 demonstrated that aged rats do use time of day to modulate the expression of conditioned taste aversion.


Pharmacology, Biochemistry and Behavior. Learning and Motivation, 19. Un Acercamiento Preliminar a las Investigaciones de W. Customer Ratings We have not received enough ratings to display an average for this book. Thus, the rats were randomly assigned to one of 4 groups: Excitotoxic lesions of dorsal hippocampus have been used to assess whether the hippocampus also participates in the segregation of taste and condiciona,iento memories, independent of its role in processing spatial features of experience.


The conxicionamiento as a cognitive map. It shows that rats use the time of day as a context to modulate the effect of previous experience with the to be learned stimuli.

Two forefathers of neuroscience and neurosurgery. Male Wistar rats were housed on a Reviews Neuroscience, 15, Klein, S.

Furthermore, this interpretation is consistent with accumulating data that the electrical activity of the aged hippocampus does not readily distinguish between environments Wilson et al. A, and Spear, N.


Even if the aged rats behave as young adults in cued or visible platform control versions of the task, lower visual in the control tasks compared with those requiring processing of several environmental distal cues in the experimental task cannot be excluded. Time of day-dependent latent inhibition taste aversion learning in rats.

Description El procedimiento conductual para inducir aprendizaje aversivo gustativo es susceptible de diversas modificaciones que implican procesos complejos de aprendizaje. Animal Behavior Processes, 12 1Kelly, K. Thirty Wistar rats were divided into three groups.

Thus, it is conceivable that the aged hippocampus is unable to support certain types of taste memory modulation. Las Investigaciones de W. The fact that the time of day may itself form a context is also supported by a report showing a time of daydependent expression of the behavioral sensitization to amphetamine Arvanitogiannis, Sullivan, and Amir,