Paratonia, an alteration of tone to passive movement, was assessed in 25 adult patients with degenerative dementia and correlated with other tests of frontal lobe function (echopraxia, distractibility, word fluency) and cognitive function (Mini-Mental State Examination) in a study at Ohio State University Medical Center, Columbus, OH. A modified Kral procedure which measures continued movement after cessation of passive movement (facilitory paratonia) correlated better with a subjective rating of facilitory paratonia than with oppositional paratonia (gegenhalten). The Kral procedure also predicted echopraxia. Both forms of paratonia and the Kral procedure each predicted scores on the MMSE for frontal lobe cognitive function. [1]