Lecithin does not affect EEG spectral analysis or P 300 in Alzheimer disease

Abstract
We studied 10 patients with Alzheimer disease by measuring EEG compressed spectral analysis and the P300 latency and topography before and after 2 weeks of lecithin therapy. There was a significant positive correlation between the degree of dementia measured by the Blessed Dementia Scale and the amount of EEG delta activity. The P300 latency was related to the ability to detect the rare tones in the P300 paradigm. Lecithin therapy increased mean plasma choline levels but did not affect EEG power or the P300 latency or topography.