Studies on Square Drawing Test for Ataxia : I. Bimanual Method: Its Procedure and Results in Healthy Adults.

Square Drawing Test by each hand (Bimanual Method) is presented for detecting qualitatively and evaluating quantitatively the ataxic disorders. The test procedures are described in detail. Results obtained from 30 healthy adults are shown as mean value with standard deviation in each parameter, i. e., 1) length of lines of figures drawn in the prescribed squares, 2) Distance S-E, 3) Distance 1-4, 4) deviation angle. And additionally on 5) derangement of the lines drawn is mentioned. Data of some cases with dizziness and ataxia are introduced briefly though the following paper will contribute on clinical studies on the Square Drawing Test. This simple test will be useful as a link of routine oto-neurological test in clinic and field.