Comparison of Spatial Discrimination in the Temporal and Nasal Sectors of the Monocular Visual Field

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Abstract
A study comparing monocular visual spatial discrimination in temporal and nasal half-fields was undertaken with the Tuebinger perimeter of Harms (1960). Twenty normal male college students performed a series of spatial visual discriminations in which “standard” and “comparison” stimuli were successively presented at varying distances from a fixation point along the mid-horizontal meridian. The results show that under conditions of relatively prolonged presentation of the test stimuli (1.0 sec.) monocular visual discriminations of this type are performed better with the left eye than with the right. The superiority of the left eye was maintained irrespective of whether nasal or temporal half-fields were tested. Furthermore, for a given eye, there was no significant difference in the performance of nasal and temporal half-fields.

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