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Effect of lecithin on memory in normal adults
Am J Psychiatry 1983;140:1010-1012.
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Abstract

In a double-blind, placebo-controlled, crossover study of the effect of lecithin on memory test performance, nine normal paid volunteers (age range = 22-55 years) took single oral doses of placebo and lecithin (20 g) 5 hours before cognitive testing. Lecithin raised plasma choline levels during the test session to nearly double the placebo levels, but a categorized serial learning task, a word recognition task, a paired associates learning task, and a test of retrieval by category demonstrated no significant change in memory performance. Lecithin did not selectively enhance memory for low-imagery words. Lecithin also had no effect on psychomotor speed.

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lecithin ; memory
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