Autores: Marcela Scherem de Azevedo; Fabiana Leopoldo de Souza; Márcio Vinícius Fagundes Donadio; Aldo Bolten Lucion; Márcia Giovenardi.
Resumen
the objective of this study was to assess the role of environmental/nest components and maternal behavior after several neonatal interventions on subsequent behavioral responses. Male Wistar rats were subjected different neonatal interventions and were later evaluated for innate fear-like behavior in adulthood. The experimental groups included nonhandled (i.e...animals were not touched). handled (i.e...animals were separated from the homecage for 10 min/day, and pups remained in their cages without being touched), and tactile stimulation (i.e...the mother was removed from the homecage,and pups were stimulated with a brush for 10 min/day within the nest). The mother's behavior was recorded during the neonatal period, and the male pups were later testesd in the open field adults. The results revaled that only mothers whose pups were handled had an incrase in the duration of licking behavior compared with the other groups.
