1. N. P. Bekhtereva, P. V. Bundzen, and Yu. L. Gogolitsyn, Brain Codes of Mental Activity [in Russian], Leningrad (1977).
2. V. M. Kamenskaya, in: Problems of Pathology of Higher Nervous Activity of Somatic Disturbances, Clinical Picture and Treatment of Psychoses [in Russian], Kiev (1965), pp. 55?58.
3. K. V. Sudakov, in: Sensory Organization of Movements [in Russian], Moscow (1975), pp. 204?210.
4. A. A. Ukhtomskii, Collection of Works [in Russian], Leningrad (1950), pp. 163?172.
5. M. N. Livanov, Spatial Organization of Brain Processes [in Russian], Moscow (1972).