Reticulo-reticular relationship during sleep and waking.

The mode of interaction between so-called sleep-waking centers during different phases of consciousness was investigated in the cat. Averaged evoked responses were recorded from different centers to electrical stimulation of a center. The results showed that most sleep-waking centers are not simply engaged in the realization of a single phase, but operate during different phases in dynamic relationship with other centers. It was suggested that the mechanism of SS would be more diffusely distributed in the brain stem that presently conceived and that in contrast to the mechanism of PS, that of SS would have more extensive interaction with the mechanisms responsible to other phases.