Effects of Alcohol on Brain-Tissue Impedance in Animals and Man

Abstract
The effect of blood alcohol levels to 240 mg./lOO ml. on the impedance of the amygdala, hippocampus, lateral geniculate bodies (normal and degenerated, 1 year after striatal cortex ablation), and the midbrain reticular formation, has been examined in cats. The characteristic response to alcohol was a fall in both the reactive and resistive components of impedance. No regional differences were found. There was no significant change in impedance in the degenerated lateral geniculate bodies. The pes hippocampus of 2 human subjects showed the same response to alcohol as the normal cat brain.