Selective Partial Ablation of the Frontal Cortex

Movement organization and delayed alternation behavior of monkeys following selective ablation of frontal cortex.

The delayed alternation problem was tested in monkeys either according to the routine procedure (SS test), or when additional cues were added which were operating in the moment of executing the response. These additional cues involved different sensations in effort of the perfomed movement – sliding heavy object vs. sliding light object (sS test), as well as different sensations in pattern of m...

Selective perceptual impairments after perirhinal cortex ablation.

It has been suggested that the primate perirhinal cortex contributes exclusively to memory. However, recent studies in macaque monkeys have implied that the perirhinal cortex may also contribute to object perception. To investigate whether the perirhinal cortex does contribute to perception, we devised several perceptual oddity tasks in which monkeys had to choose which stimulus of several pres...

The two components of the grasp reflex after ablation of frontal cortex in monkeys.

Uncontrolled stress produces severe defect in development of frontal cortex in the rat

One of the most important factors in drug addiction is stress. It has been shown that animals with prenatal stress history are more risky for drug dependence. It have also been shown that frontal cortex play a role in drug dependence. In the present study the effects of two kinds of mild stress during pregnancy on the development of frontal cortex in Wistar rats (250-300 g) were investigated. F...

Uncontrolled stress produces severe defect in development of frontal cortex in the rat

One of the most important factors in drug addiction is stress. It has been shown that animals with prenatal stress history are more risky for drug dependence. It have also been shown that frontal cortex play a role in drug dependence. In the present study the effects of two kinds of mild stress during pregnancy on the development of frontal cortex in Wistar rats (250-300 g) were investigated. F...