Master's Theses



Degree Name

Master of Science (MS)


This study was conducted to determine if release from proactive inhibition (PI) could be demonstrated for visual / nonverbal stimuli as has been previously observed in the verbal domain. Forty undergraduate students received a modified version of the Wickens' Release from Proactive Inhibition paradigm in which subjects memorized visual stimuli from one category over four trials followed by a switch to a second category or a continuation of the same class of visual material on the fifth trial. The subjects did demonstrate significant build-up of proactive inhibition over the first four trials, in addition, they released from proactive inhibition when the category of visual stimuli was changed on the fifth trial. The results were found with both the traditional error measure of memory and with a new response time measure.


Robert Markley

Date of Award

Summer 1989

Document Type

Thesis - campus only access


© 1989 John Howard Lohrey


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