The Effects of Sodium Amylobarbitone and Dexamphetamine Sulphate on the Peripheral Visual Field

Abstract

In an earlier investigation (Holland, 1960) the peripheral visual field was examined under three treatment conditions, namely meprobamate (2-methyl-2-n-propyl-1, 3 propanediol dicarbamate), Doriden (glutethimide), and no drug. Results from 24 subjects, each tested three times, indicated that there were significant differences, attributable to the treatments, in both the inner and outer discrimination thresholds and also in the magnitude of the interval of uncertainty between thresholds. In the present experiment it has been thought worth while to examine the visual field for the effects of two other compounds, a stimulant dexamphetamine sulphate (Dexedrine), and a depressant sodium amylobarbitone (Amytal).