I would like to bring your attention two errors in the article "High-Technology Advances Spur Progress In Study of Human Brain" about Alan Gevins and EEG Systems Laboratory [The Scientist, Nov. 26, 1990, page 1]. First, the caption to the third figure, "Be Prepared" [page 4], indicates that the patterns on the right are predictive of accurate responses when, in fact, they are predictive of inaccurate responses. Second, the Air Force pilots in our study of sustained mental work were recorded wi
Second, the Air Force pilots in our study of sustained mental work were recorded with either 33 or 51 channels. The data from subjects who more recently had 124-channel EEG recordings and magnetic resonance images are used in making three-dimensional models of the brain.
Judy Illes
EEG Systems Laboratory
San Francisco
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