Portal de Periódicos da CAPES

Tracking Development of Speech Recognition

2008; Lippincott Williams & Wilkins; Volume: 29; Issue: 2 Linguagem: Inglês

10.1097/mao.0b013e3181627a37

1537-4505

Nae Yuh Wang, Laurie S. Eisenberg, Karen Johnson, Nancy E. Fink, Emily A. Tobey, Alexandra L. Quittner, John K. Niparko, Karen Johnson, Jean L. DesJardin, Melinda Gillinger, William M. Luxford, Amy Martinez, Leslie Visser-Dumont, Carren J. Stika, Sophie E. Ambrose, Dianne Hammes-Ganguly, Jennifer Mertes, Steve Bowditch, Jill Chinnici, Howard W. Francis, Rick Ostrander, Jennifer Yeagle, Nancy Mellon, Mary O.Leary Kane, Sarah Wainscott, Jennifer Wallace, Annelle V. Hodges, Thomas J. Bałkany, Alina Lopez, Leslie Goodwin, Stacy L. Payne, Teresa A. Zwolan, Amy Donaldson, H. Alexander Arts, B P Butler, Hussam El-Kashlam, Krista Heavner, Mary Beth O'Sullivan, Steve A. Telian, Ellen Thomas, Anita Vereb, Carolyn J. Brown, Holly F. B. Teagle, Craig A. Buchman, Carlton J. Zdanski, Hannah Eskridge, Harold C. Pillsbury, Betty Loy, Paul W. Bauer, Angela Boyd, Laura Cantu, Carol Cokely, S Florence, Janee Gisclair, Laura Levitan, Joy Penrad, Shannon Raby, Jamie Rasmus, Peter S. Roland, Heather MacFadyen, Donise Pearson, Deborah M. Rekart, Lauren Sacar, Melissa Sweeney, Linsey S. Wagner, Nicole Weissner, B. Williams, Patricia Bayton, Thelma Vilche, Daniel Habtemariam, Alexandra L. Quittner, Pam Leibach, Ivette Cruz, Noel L. Cohen, Julia L. Evans, Ann E. Geers, Karen Iler Kirk,

Speech and Audio Processing

Objective: To develop a speech recognition index that summarizes data collected through an array of age-appropriate hierarchical speech recognition tests in a longitudinal study. Study Design: Prospective cohort. Setting: Six tertiary referral centers in the Childhood Development after Cochlear Implantation (CDaCI) Study. Patients: One hundred eighty-eight children implanted at age 5 years or younger and 97 age-comparable normal-hearing controls. Intervention: Cochlear implantation. Main Outcome Measures: Outcome measures were the following: Infant-Toddler Meaningful Auditory Integration Scale, Meaningful Auditory Integration Scale, Early Speech Perception Test, Pediatric Speech Intelligibility Test, Multisyllabic Lexical Neighborhood Test, Lexical Neighborhood Test, and Hearing in Noise Test, obtained before implantation and at 6, 12, 18, and 24 months postimplant. Results: A speech recognition cumulative index, speech recognition index in quiet (SRI-Q), was created to combine information from tests administered in quiet. This index allows simultaneous display of data from all tests in the speech recognition hierarchy and is sensitive to improvements in performance over time as a function of age. SRI-Q also provides a composite of performance on multiple tests, allowing both the tracking of "growth curve" in speech recognition across a wide age range over an extended follow-up period and the comparison of normal-hearing and implanted children on multiple measures. The data range for individual tests is also preserved for ease of interpretation. Conclusion: SRI-Q allows tracking of global development of speech recognition over time as children progress through a hierarchy of speech perception measures and complements the more detailed assessments obtained from individual tests within the hierarchy.