Journal of Speech, Language, and Hearing Research Vol.53 1394-1400 October 2010. doi:10.1044/1092-4388(2010/09-0236)
© American Speech-Language-Hearing Association
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Research Note

Identifying Behavioral Measures of Stress in Individuals With Aphasia

Jacqueline S. Laures-Gore
Michaela F. DuBay
Georgia State University, Atlanta

Melissa C. Duff
University of Iowa, Iowa City

Tony W. Buchanan
Saint Louis University, St. Louis, MO

Contact author: Jacqueline S. Laures-Gore, Communication Disorders Program, Department of Educational Psychology and Special Education, Georgia State University, P.O. Box 3979, Atlanta, GA 30302-3979. E-mail: spejsl{at}langate.gsu.edu.

Purpose: To develop valid indicators of stress in individuals with aphasia (IWA) by examining the relationship between certain language variables (error frequency [EF] and word productivity [WP]) and cortisol reactivity.

Method: Fourteen IWA and 10 controls participated in a speaking task. Salivary cortisol was collected pre- and posttask. WP and EF were calculated from the language sample elicited during the speaking task.

Results: As expected, IWA had less WP and a higher EF than did control participants, and these effects were related to aphasia severity. Cortisol reactivity of IWA was moderately associated with WP, such that those with higher WP showed greater cortisol reactivity. The control group did not demonstrate this relation. Neither group demonstrated a relation between salivary cortisol reactivity and EF.

Conclusion: WP in individuals with aphasia holds potential as a behavioral index of stress in this population.

KEY WORDS: aphasia, stress, cortisol


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