Consistent with this observation, recent voxel-based morphometry studies have reported a greater volume of cortex surrounding the calcarine sulcus in congenitally deaf signers relative to hearing non-signers (Allen, Emmorey, Bruss, & Damasio, 2013 ; Lepore et al., 2010 ). In contrast, the marginally significant M130 amplitude modulation did co-occur with a significant topographic shape difference ( Figures 3 and 4 ), suggesting a qualitative change in the generator patterns between the two conditions by 130 ms in the visual processing stream, plausibly in the occipitotemporal cortex (Tarkiainen et al., 2002 ).
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The Processing of Biologically Plausible and Implausible forms in American Sign Language: Evidence for Perceptual Tuning.
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