Grooved Pegboard Test
The GPT assesses eye-hand coordination and motor speed and thus requires sensory motor integration and a high level of motor processing (Roy and Square-Storer 1994). It is considered a more complex motor task than others such as grip strength or finger tapping. As such, it requires more effort and is more sensitive to psychomotor speed (Mitrushina et al. 2005). The test has been used extensively for identifying lateralized impairment such as that in Parkinson’s disease (Demakis et al. 2002). In addition, it has been found to be sensitive in detecting general slowing due to medication or disease progression (Tiffin 1968) and used to evaluate cognitive and motor slowing in bipolar disorder (Wilder-Willis et al. 2001), HIV infection (Honn et al. 1999), and other conditions of interest to neuropsychologists.
The test apparatus consists of a square metal surface (10.1 cm2) with a 5 × 5 matrix of keyhole-shaped holes in various orientations. The task requires the...
References and Readings
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