Métadonnées
Afficher la notice complètePartager cette publication !
Representation-mediated aversion as a model to study psychotic-like states in mice
Langue
EN
Article de revue
Ce document a été publié dans
Bio-protocol. 2017, vol. 7, n° 12, p. 1-11
Résumé en anglais
Several paradigms for rodent models of the cognitive and negative endophenotypes found in schizophrenic patients have been proposed. However, significant efforts are needed in order to study the pathophysiology of ...Lire la suite >
Several paradigms for rodent models of the cognitive and negative endophenotypes found in schizophrenic patients have been proposed. However, significant efforts are needed in order to study the pathophysiology of schizophrenia-related positive symptoms. Recently, it has been shown that these positive symptoms can be studied in rats by using representation-mediated learning. This learning measure the accuracy of mental representations of reality, also called 'reality testing'. Alterations in 'reality testing' performance can be an indication of an impairment in perception which is a clear hallmark of positive psychotic-like states. Thus, we describe here a mouse task adapted from previous findings based on a sensory preconditioning task. With this task, associations made between different neutral stimuli (e.g., an odor and a taste) and subsequent selective devaluation of one of these stimuli have allowed us to study mental sensory representations. Thus, the interest of this task is that it can be used to model positive psychotic-like states in mice, as recently described.< Réduire
Mots clés en anglais
Positive symptoms
Schizophrenia
Delusions
Reality testing
Representation-mediated learning