Pupillary Response to Value-Linked Words

Abstract
Pupillary measurements were taken on 12 Ss who viewed sequences of words reflecting values of high, low, and neutral importance to them. No significant relationships were found between most measures of pupil size and word value. Changes in pupil size between word pairs of different value were evenly divided between constrictions and dilations according to chance. This lack of supporting evidence for current theories of pupillometrics is discussed in terms of experimental research problems.