[Functional interneuronal connections in the motor cortex of waking and anesthetized cats]

Neuronal interconnections in the motor cortex of alert and anesthetized cats were studied using the techniques of multiunit activity recording and cross-correlative histograms. The number of neuronal interconnections did not decrease in cortical microareas during the deepening of anesthesia, but their reconstruction and levelling of inputs and outputs of all microareas' cells occurred. During the reconstruction of interrelationships among functional microareas an activation occurred in the neurons which had been rather inert in the cortex of alert cats. The data obtained suggest differential participation of the cat motor cortex' neurons in information processing at the level of microareas.