[Dynamics of the microvessel responses in the projection areas of the rat somatosensory cortex].

A mosaic distribution of local cerebral blood flow was found in the rat border cells of the somatosensory brain cortes, as well as development of local functional hyperemia during whisker stimulation. The more intensive the stimulation the shorter were latency and amplitude of the hyperemia. The early phase of the hyperemia seems to be associated with neuronal factors, whereas the late component depended on the endothelium.