Modelo animal de Anorexia por atividade: um estudo exploratório sobre a relação entre ingestão de alimento e correr na roda de atividade

Abstract

The objective of this study was to check if the food deprivation, obtained through different restrictions on the quantity of food, would increase the reinforcer value of the running wheel activity in male subjects. It were used 8 subjects divided into three feeding conditions: strong deprivation, gradual deprivation and free feeding. After going through a bar pressing training session, having as a consequence the opportunity to run in a wheel, the subjects were exposed to a base line session of the reinforcer value of the running wheel progressive FR schedule. After this session, the subjects were food deprived for 16 or 8 days. After this period all subjects tested for the reinforcer value of the running wheel activity. It was noticed that small quantities of food increased the reinforcer value of the running wheel activity, even when the food restriction haven't lead to a significant loss of weight. Another noticeable aspect was that the reinforcer value of the activity increased in a similar way with both strong and gradual depriving conditions