Scientific article
Open access

Dressmakers show enhanced stereoscopic vision

Published inScientific Reports, vol. 7, no. 3435
Publication date2017

The ability to estimate the distance of objects from one's self and from each other is fundamental to a variety of behaviours from grasping objects to navigating. The main cue to distance, stereopsis, relies on the slight offsets between the images derived from our left and right eyes, also termed disparities. Here we ask whether the precision of stereopsis varies with professional experience with precise manual tasks. We measured stereo-acuities of dressmakers and non-dressmakers for both absolute and relative disparities. We used a stereoscope and a computerized test removing monocular cues. We also measured vergence noise and bias using the Nonius line technique. We demonstrate that dressmakers' stereoscopic acuities are better than those of non-dressmakers, for both absolute and relative disparities. In contrast, vergence noise and bias were comparable in the two groups. Two non-exclusive mechanisms may be at the source of the group difference we document: (i) self-selection or the fact that stereo-vision is functionally important to become a dressmaker, and (ii) plasticity, or the fact that training on demanding stereovision tasks improves stereo-acuity.

Citation (ISO format)
CHOPIN, Adrien, LEVI, Dennis M., BAVELIER, Daphné. Dressmakers show enhanced stereoscopic vision. In: Scientific Reports, 2017, vol. 7, n° 3435. doi: 10.1038/s41598-017-03425-1
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Article (Published version)
ISSN of the journal2045-2322

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