Psychology Commons^™

Case Effects In Letter-Name Matching: A Qualitative Visual Field Difference, Joseph B. Hellige

Psychological Science Faculty Works

Subjects indicated whether or not two letters presented simultaneously to the left or right visual field had the same name. On same-name trials, reaction time was faster when both letters had the same case (physically identical, or PI, pairs) than when they were of different case (name identical, or NI, pairs) and reaction time was faster for left visual field presentations than for right visual field presentations. For left visual field presentations, the letter-case effect was as large on different-name trials as on same-name trials, indicating that the NI-PI difference was not simply a physical identity effect. In contrast, for …