This communication is a report of the results of a study of the blood velocity, as determined by the sodium cyanide method of measuring the arm to carotid circulation time, in patients suffering from various abnormal mental states. The investigation was stimulated by the fact that the blood velocity had been reported previously by Freeman1 as abnormally slow in patients with schizophrenia. If his results could be confirmed it would be an opening wedge in the study of the pathologic physiology of this disease. At a later date, however, Finesinger, Cohen and Thomson,2 utilizing the same method, were unable to confirm Freeman's results and reported that the arm to carotid circulation time for patients suffering from schizophrenia was normal. Because of the marked discrepancy in these reports, the results of the present study are given. This investigation was not confined to a check of the preceding studies on
GOTTLIEB JS. ARM TO CAROTID CIRCULATION TIME IN ABNORMAL MENTAL STATES. Arch NeurPsych. 1939;41(6):1117–1126. doi:10.1001/archneurpsyc.1939.02270180045003
Customize your JAMA Network experience by selecting one or more topics from the list below.