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Robust lateralization developed in right-handed adults who were asked to judge letter pairs as "same" or "different" during 4608 trials. By the end of the first two blocks (768 trials) "same" responses were favored when presented in the RVF (transmitted directly to the left hemisphere) and "different" responses were favored when presented in the LVF (transmitted direction to the right hemisphere). This gradually reversed over sessions with "same" responses becoming faster for letters presented in the LVF, and "different" responses becoming faster for stimuli presented in the RVF. The laterality acquired under these conditions was cumulative and reproducible, appeared in all 16 subjects, and was preserved between sessions a week apart. The data suggest that laterality is a flexible and reversible characteristic of the human brain even when stimulus and task remain constant.
R Stillman, and
E DeRenzo, and
O Wolkowitz, and
H Allen, and
R A Lehman, and
R J Wyatt
December 1988,
Cortex; a journal devoted to the study of the nervous system and behavior,
R Stillman, and
E DeRenzo, and
O Wolkowitz, and
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R J Wyatt
November 1984,
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R Stillman, and
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June 2000,
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R Stillman, and
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O Wolkowitz, and
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February 1970,
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R Stillman, and
E DeRenzo, and
O Wolkowitz, and
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R Stillman, and
E DeRenzo, and
O Wolkowitz, and
H Allen, and
R A Lehman, and
R J Wyatt
May 1982,
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R Stillman, and
E DeRenzo, and
O Wolkowitz, and
H Allen, and
R A Lehman, and
R J Wyatt
November 1979,
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R Stillman, and
E DeRenzo, and
O Wolkowitz, and
H Allen, and
R A Lehman, and
R J Wyatt
December 1972,
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R Stillman, and
E DeRenzo, and
O Wolkowitz, and
H Allen, and
R A Lehman, and
R J Wyatt
April 1975,
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