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Abstract:
Recently, there has been evidence that patients with
unilateral visual neglect process information in the neglected
field at a semantic level (e.g., McGlinchey-Berroth et al., 1996).
We examined to what extent patients with visual neglect (N = 9)
processed semantic, orthographic, and phonological information in
the neglected field. We used a priming paradigm where laterally
presented primes were identical (e.g., SIT-sit), orthographically
related (e.g., LEMON-demon), phonologically related (e.g.,
ACHE-lake), semantically related (e.g., CAT-dog), or both
orthographically and phonologically related (e.g., MEET-feet) to
the targets. We found equivalent semantic priming in both visual
fields (47 ms). In addition, repetition priming was greater in the
right visual field than the left (285 ms versus 12 ms). There was
no evidence of orthographic, phonological, or
orthographic/phonological priming. Therefore, only when the prime
was semantically related to the target was priming obtained in the
neglected field.
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