Pupillary size change as correlated with mental activity.

Download
Author
Hope, Robert Edward
Date
1971-03Advisor
Poock, Gary K.
Metadata
Show full item recordAbstract
An indirect measurement of mental activity was correlated with .
changes in pupil size during simple multiplication solving. There was
also a close correlation between mental activity and the difficulty of
the problem. With an increase in difficulty, there was an associated
increase in pupil size for correctly answered problems, but an associated
decrease in pupil size for wrong replies.