Reference Work Entry

Encyclopedia of Clinical Neuropsychology

pp 1176-1178

Grooved Pegboard Test

  • Brad MerkerAffiliated withHenry Ford Health Systems
  • , Kenneth PodellAffiliated withDivision of Neuropsychology, Henry Ford Health Systems




The GPT assesses eye–hand coordination and motor speed and thus requires sensory motor integration and a high level of motor processing (Roy & 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, Boone, Razani, D’Elia, 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, Sax, Rosenberg, Fleck, Shear, Strakowski, 2001), HIV infection (Honn, Para, Whitacre, & Bornstein, 1999), and other conditions of interest to neuropsychologists.

The test apparatus consists of a square metal surface (10.1 cm2) w ...

This is an excerpt from the content