Abstract
Abstract Intraindividual comparisons of sensory-perceptual and motor functions frequently provide one of the bases for inferring brain damage and/or dysfunction in cases involved in litigation. Valid determination of whether the lateralized deficit is due to brain damage or peripheral nerve injury is imperative in many such cases. This report presents a longitudinal study of a case of peripheral nerve injury, together with guidelines for differentiating central and peripheral injuries. Measurements of grip strength were made twice daily on a single subject for 89 days following a mild right ulnar nerve injury. The results revealed mild residual impairment long after the subjective symptoms of pain and numbness had resolved. The valid differentiation of central versus peripheral bases for lateralized sensory-perceptual and motor deficits is especially important in cases of traumatic head injury, because either basis (central and/or peripheral) is often implicated (especially with multiple injuries), and he...
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