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American Journal of Speech-Language Pathology Vol.4 164-168 November 1995.
© American Speech-Language-Hearing Association
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Lexical Retrieval Behaviors of Subjects With Aphasia and Subjects Without Brain Damage on a Rebus Riddle Task

Robert C. Marshall 1
Donald B. Freed 2
1 University of Rhode Island, Kingston
2 Department of Veterans Affairs Medical Center, Portland, OR

This study compared the lexical retrieval behaviors of subjects with aphasia (APH) and subjects with no brain damage (NBD) on a Rebus Riddle task. Most differences between the groups were quantitative. APH subjects solved significantly fewer riddles (49%) than the NBD subjects (82%); their riddle-solving times were significantly longer (M=27.47 seconds) than those of the NBD group (M=8.86 seconds). Riddle-solving time differences resulted from relative absence of behaviors in the correct responses of the NBD group (73%) compared to the APH group (23%). Qualitative analyses revealed similar distributions of lexical retrieval behaviors across the correct responses, cuing successes, and cuing failures for both groups. The Rebus Riddle task was sufficiently difficult to evoke lexical retrieval behaviors by NBD subjects. APH subjects' riddle-solving efforts demonstrated an increase in the frequency of these behaviors, but the types of lexical retrieval behaviors exhibited by both groups were similar.

Key Words: aphasia, lexical retrieval, behavior


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