title: The elevated T-maze as a measure of two types of defensive reactions: a factor analysis.
abstract: Using factor analysis, we investigated whether the defensive reactions seen in the elevated T-maze measure different behaviours. Rats were submitted to the elevated T-maze followed by the open-field test. Avoidance 1 and 2 loaded on the same factor, while escape 2 and 3 loaded on a second factor. Baseline avoidance did not load together with locomotor activity in the open-field. These results indicate that the elevated T-maze generates two different defensive behaviours.
authors.affiliation: Laboratório de Fisiologia e Farmacologia do Sistema Nervoso Central, Departamento de Farmacologia, Universidade Federal do Paraná, Curitiba, Brazil.
authors.forename: José Carlos Miranda
authors.initials: JC
authors.lastname: Torrejais
authors.forename: Camila Castilho Machado
authors.initials: CC
authors.lastname: Rosa
authors.forename: Roseli
authors.initials: R
authors.lastname: Boerngen-Lacerda
authors.forename: Roberto
authors.initials: R
authors.lastname: Andreatini
mesh_terms: D000818:Animals; D001007:Anxiety / Q000523:psychology; D001362:Avoidance Learning / Q000502:physiology*; D001522:Behavior, Animal / Q000502:physiology*; D005163:Factor Analysis, Statistical; D005239:Fear / Q000502:physiology*; D008297:Male; D018782:Maze Learning / Q000502:physiology*; D023421:Models, Animal; D009043:Motor Activity / Q000502:physiology; D009483:Neuropsychological Tests; D009484:Neuropsychology / Q000379:methods*; D016584:Panic Disorder / Q000523:psychology; D051381:Rats; D017208:Rats, Wistar