Effects of delta sleep-inducing peptide on the intercentral integration during experimental epilepsy

In free behavior experiments on cats it has been shown, that the intraperitoneal injection of delta-sleep-inducing peptide (100 mg/kg) may change organization of the pathology integration-epileptic discharges did not spread all the structures simultaneously. The slow-waves were registered in central medium of the thalamus and nucl. caudati. The epileptic discharges were registered first in visual and auditory cortex, hippocampus. After that they were observed in the motor cortex, nucl. caudati and centrum medianum of the thalamus.     

Functional interactions between the intralaminar nuclei of the thalamus and the caudate nuclei in the formation of motor programs

It has been shown that at the beginning of motor program forming, homogeneous and cyclic excitations take place between the nonspecific thalamic structures and caudate nuclei. Later on reciprocity of the afferent inflows to the nuclei under consideration occurs, that indicates a different pattern of the involvement of these structures into intercentral integration controlling avoidance behavior.     

Effect of destruction of the frontal and parietal regions of the neocortex on the ability of dogs to solve extrapolation problems

Parietoectomized dogs (n = 8), like intact ones (n = 102), are able to extrapolate the direction of the movement of an alimentary stimulus when presented with a complex task variant. In this they differ from animals with a prefrontal lobectomy (n = 10) in which, according to the authors' previous data (1971), the ability to elementary rational activity in Krushinsky extrapolation test (1977), is impaired.