SciELO - Scientific Electronic Library Online

vol.20 issue1The EEA model: definitions, unit of analysis and possible applicationsStress and coping strategies of master's-level health sciences students author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Psicologia: Reflexão e Crítica

Print version ISSN 0102-7972On-line version ISSN 1678-7153


COSTA, Valéria Catelli Infantozzi et al. Acquisition of a non-matching to place task by rats with neonatal hippocampal lesion induced by ionizing radiation. Psicol. Reflex. Crit. [online]. 2007, vol.20, n.1, pp.96-103. ISSN 0102-7972.

Costa, Bueno e Xavier (2005) showed that rats with hippocampus dentate gyrus lesions produced by colchicine have post-surgical tests deficits in spatial tasks involving conditional discrimination (non-matching-to-place, NMTP), although repetitive training does promote the recovery of the lamed subject's performance. The purpose of this experiment was to assess the performance of rats with selective lesions of dentate gyrus induced by neonatal ionizing radiation in the NMTP task. The irradiated group showed deficits in the first training sessions when compared to the control group. Nevertheless, the performance of lesion and control groups was similar at the end of the sessions, as previously reported. The results are discussed in light of the cognitive map theory.

Keywords : Ionizing radiation; spatial discrimination; NMTP task acquisition; hippocampus; dentate gyrus.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License