Coherence patterns of the infant sleep EEG in absence of the corpus callosum.

The role of the corpus callosum in the relationship between the EEGs of the two cerebral hemispheres was studied by comparing 3 infants with congenital agenesis of the corpus callosum with a group of neurologically normal infants. Coherence functions were computed for symmetrical pairs of EEG derivations; in the frequency bands below 4 Hz they were in general much lower in the acallosal infants than in the normals.