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- Title
Prism adaptation in left-handers.
- Authors
Redding, Gordon; Wallace, Benjamin
- Abstract
Two experiments with left-handers examined the features of prism adaptation established by previous research with right-handers. Regardless of handedness, (1) rapid adaptation occurs in exposure pointing with developing error in the opposite direction after target achievement, especially with early visual feedback in target pointing; (2) proprioceptive or visual aftereffects are larger, depending on whether visual feedback is available early or late, respectively, in target pointing; (3) the sum of these aftereffects is equal to the total aftereffect for the eye-hand coordination loop; (4) intermanual transfer of visual aftereffects occurs only for the dominant hand; and (5) visual aftereffects are larger in left space when the dominant hand is exposed to leftward displacement. A notable handedness difference is that, while transfer of proprioceptive aftereffects only occurs to the nondominant hand in right-handers, transfer occurs in both directions for left-handers, but regardless of handedness, such transfer only occurs when the exposed hand is tested first after exposure. A discussion then focuses on the implications of these data for a theory of handedness.
- Subjects
HANDEDNESS; VISUAL perception; PROPRIOCEPTION; PROPRIOCEPTORS; SENSORY receptors
- Publication
Attention, Perception & Psychophysics, 2011, Vol 73, Issue 6, p1871
- ISSN
1943-3921
- Publication type
Article
- DOI
10.3758/s13414-011-0147-1