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Hand movement span after mild traumatic brain injury: A longitudinal study

Published online by Cambridge University Press:  27 June 2006

KATHERINE A.R. FRENCHAM ,
MURRAY T. MAYBERY  and
ALLISON M. FOX
KATHERINE A.R. FRENCHAM
Affiliation:
School of Psychology, University of Western Australia, Perth, Western Australia
MURRAY T. MAYBERY
Affiliation:
School of Psychology, University of Western Australia, Perth, Western Australia
ALLISON M. FOX
Affiliation:
School of Psychology, University of Western Australia, Perth, Western Australia Private Practice, Perth, Western Australia
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Abstract

This study examined whether memory span was impaired during the acute and post-acute phases following mild traumatic brain injury (mTBI). Twenty-two adults with mTBI were compared with 22 controls on computerized tasks of immediate memory for verbal, spatial, and hand movement sequences under no interference (baseline) and articulatory suppression conditions. Groups were assessed within a month and followed up 3–12 months post-injury. In the acute phase, there were no group differences across tasks under either condition. At follow-up, all spatial and verbal span scores and associated practice effects were equivalent across groups. Yet for the hand movement task, baseline movement span was worse for the mTBI group suggesting that they failed to benefit from practice to the same extent as controls. Furthermore, the fact that this group difference in span scores disappeared when articulatory suppression was imposed indicates that successful hand movement task performance involves verbal recoding. (JINS, 2006, 12, 580–584.)

Keywords

Mild head injuryNeuropsychologyRecoveryImmediate memoryMemory spanInterferencePractice effect
Type
BRIEF COMMUNICATION
Information
Journal of the International Neuropsychological Society , Volume 12 , Issue 4 , July 2006 , pp. 580 - 584
Copyright
© 2006 The International Neuropsychological Society

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