Article  |   February 2012
Vocabulary and Working Memory in Children Fit With Hearing Aids
 
Author Affiliations & Notes
  • Derek J. Stiles
    University of Iowa
  • Karla K. McGregor
    University of Iowa
  • Ruth A. Bentler
    University of Iowa
  • Correspondence to Derek J. Stiles, who is now at Rush University: derek_stiles@rush.edu
  • Editor: Sid Bacon
    Editor: Sid Bacon×
  • Associate Editor: Emily Tobey
    Associate Editor: Emily Tobey×
  • © 2012 American Speech-Language-Hearing AssociationAmerican Speech-Language-Hearing Association
Article Information
Development / Hearing & Speech Perception / Acoustics / Hearing Disorders / Hearing Aids, Cochlear Implants & Assistive Technology / Attention, Memory & Executive Functions / Speech, Voice & Prosody / Hearing
Article   |   February 2012
Vocabulary and Working Memory in Children Fit With Hearing Aids
Journal of Speech, Language, and Hearing Research, February 2012, Vol. 55, 154-167. doi:10.1044/1092-4388(2011/11-0021)
History: Received January 24, 2011 , Accepted June 1, 2011
 
Journal of Speech, Language, and Hearing Research, February 2012, Vol. 55, 154-167. doi:10.1044/1092-4388(2011/11-0021)
History: Received January 24, 2011; Accepted June 1, 2011
Web of Science® Times Cited: 8

Purpose: To determine whether children with mild-to-moderately severe sensorineural hearing loss (CHL) present with disturbances in working memory and whether these disturbances relate to the size of their receptive vocabularies.

Method: Children 6 to 9 years of age participated. Aspects of working memory were tapped by articulation rate, forward and backward digit span in the auditory and visual modalities, Corsi span, parent surveys, and a sequential encoding task. Articulation rate, digit spans, and Corsi spans were also administered in low-level broadband noise.

Results: CHL and children with normal hearing (CNH) demonstrated auditory advantage in forward serial recall. CHL demonstrated slower articulation rates than CNH, but similar memory spans. CHL with poor executive function presented with poorer performance on the Corsi span task. The presence of background noise had no effect on performance in either group. CHL presented with significantly smaller receptive vocabularies than their CNH peers. Across groups, receptive vocabulary size was positively correlated with digit span in quiet, Corsi span in noise, and articulation rate.

Conclusions: In the presence of mild-to-moderately severe hearing loss, children demonstrated resilient working memory systems. For all children, working memory and vocabulary were related; that is, children with poorer working memory had smaller vocabulary sizes.

Acknowledgments
We would like to acknowledge the assistance of Joan Marttila and Laurie Cooley at Iowa Area Education Agency No. 9; Dawn Violetto at Illinois Child’s Voice; and David Pisoni, Christopher Turner, Sandie Bass-Ringdahl, and Kristin Perk for their contributions and support of this study.
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