Research Note

Experimental Brain Research

, Volume 197, Issue 4, pp 403-408

First online:

Proprioceptive target matching asymmetries in left-handed individuals

  • Daniel J. GobleAffiliated withSchool of Kinesiology, University of MichiganDepartment of Biomedical Kinesiology, Katholieke Universiteit Leuven Email author 
  • , Brittany C. NobleAffiliated withSchool of Kinesiology, University of Michigan
  • , Susan H. BrownAffiliated withSchool of Kinesiology, University of Michigan

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Abstract

In right-handers, the ability to reproduce proprioceptive targets has been shown to be asymmetric, favoring the non-preferred left arm. The present study sought to determine whether a similar arm/hemisphere asymmetry exists for left-handers. Ten strong left-handed adults used the left or right arm to perform proprioceptive target matching tasks that varied in processing demands (i.e., need for memory, interhemispheric transfer) and target amplitude (20, 40°). Similar to right-handers, left-handed individuals had smaller total errors when matching with the non-preferred arm. This asymmetry was greatest in conditions with increased processing demands and larger amplitude targets. These results provide the first evidence to date of right arm/left hemisphere dominance for proprioceptive target matching in left-handers that is the “mirror image” of right-handers.

Keywords

Handedness Sensory feedback Proprioception Task complexity Kinesthesis Upper limb Laterality