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Previous Volume 329:579 August 19, 1993 Number 8 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: Lehmkuhle and coworkers (April 8 issue)¹ describe abnormalities of the visual evoked potential in children with reading disability. I disagree with the authors' interpretation of their findings as evidence of a selective abnormality of the magnicellular visual pathway.

Their key observation is that transient visual evoked potentials in normal readers and subjects with reading disability are affected differently by a 12-Hz flicker in the background stimuli surrounding a target stimulus. In principle, if a 12-Hz field selectively depressed the sensitivity of magnicellular neurons, these data would suggest that a fast magnicellular pathway participated in the normal visual . . . [Full Text of this Article]

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