Home > Papers > PLoS ONE: Aging Affects the Mental Rotation of Left and Right Hands

PLoS ONE: Aging Affects the Mental Rotation of Left and Right Hands

doi:10.1371/journal.pone.0006714

Methodology/Principal Findings
Twenty young (mean age: 23.9±2.8 years) and nineteen elderly (mean age: 78.3±4.5 years) subjects, all right-handed, were required to determine the laterality of hands presented in various positions. To do so, they mentally rotated their hands to match them with the hand-stimuli.

We showed that: (1) elderly subjects were affected in their ability to implicitly simulate movements of the upper limbs, especially those requiring the largest amplitude of displacement and/or with strong biomechanical constraints; (2) this decline was greater for movements of the non-dominant arm than of the dominant arm.

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