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Reliability of Mental Chronometry for Assessing Motor Imagery Ability After Stroke
Francine Malouin, PhD, Carol L. Richards, PhD, Anne Durand, PhD, Julien Doyon, PhD Archives of Physical Medicine and Rehabilitation Volume 89, Issue 2, Pages (February 2008) DOI: /j.apmr Copyright © 2008 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
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Fig 1 The TDMI screening test: bar graphs illustrating the mean number of movements ± standard deviation at test and retest during the imagination of stepping movements over varying time periods with the affected and unaffected legs of the CVA subjects (n=20), as well as in the dominant and nondominant legs of the control (CTL) subjects (n=9). Note the increase in the number of simulated movements with the increase of time periods. See text for details. Archives of Physical Medicine and Rehabilitation , DOI: ( /j.apmr ) Copyright © 2008 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
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Fig 2 Graphs illustrating individual performance in the CVA group (n=20) during (A) the imagination and (B) the execution of stepping movements with the affected (left column) and unaffected legs (right column). (C) Corresponding I/E time ratios (mean of 2 series). The dotted line indicates total temporal congruence (I/E time ratio = 1). Note that, except in patients with slow movements, the test-retest values for the imagination and execution conditions are very close. Likewise, I/E time ratios at test and retest are close particularly in the patients with corresponding fast movements. Note that the I/E time ratios rise above 1 in slower patients as they take more time to imagine than execute the movement; similar pattern is observed on both sides. Archives of Physical Medicine and Rehabilitation , DOI: ( /j.apmr ) Copyright © 2008 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
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Fig 3 Graphs illustrating individual performance in the control group (n=46) during (A) the imagination and (B) the execution of stepping movements with the dominant (left column) and nondominant legs (right column). (C) Corresponding I/E time ratios (mean of 2 series). The dotted line indicates total temporal congruence (I/E time ratio = 1). The test-retest values for the imagination and execution conditions are very similar for both conditions, on both sides in most subjects. Likewise, I/E time ratios are quite similar over time in most subjects. Note (see arrow) that subject 42, who took more time to imagine than to execute stepping movements, had a higher I/E time ratio and that this pattern is observed bilaterally. Archives of Physical Medicine and Rehabilitation , DOI: ( /j.apmr ) Copyright © 2008 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
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