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. 2020 Oct 23;11:578401. doi: 10.3389/fpsyt.2020.578401

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Copyright © 2020 Noel, Failla, Quinde-Zlibut, Williams, Gerdes, Tracy, Zoltowski, Foss-Feig, Nichols, Armstrong, Heckers, Blake, Wallace, Park and Cascio.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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PPS is smaller and sharper in ASD than TD and SZ. Y-axis is the difference between tactile RTs during approaching and receding visual stimuli when matched for time. X-axis is distance, in the frame of reference of the approaching stimuli. Namely, D1 corresponds to D1 for approaching, and D11 for receding (which are matched in time). Negative values along the y-axis indicate a further facilitation as a function of distance for approaching than for receding visual stimuli, as would be expected of a PPS effect. Error bars are ±1 S.E.M., the vertical line in each panel (TD = black, ASD = red, SZ = blue) is the average central point of the sigmoidal fit (the fit shown is for the average subject). Shaded area is ±1 S.E.M.