Development of visual attention skills in prelingually deaf children who use cochlear implants

D. L. Horn, R. A O Davis, David Pisoni, Richard Miyamoto

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Objective: To determine the effects of length of cochlear implant use and other demographic factors on the development of sustained visual attention in prelingually deaf children and to examine the relations between performance on a test of sustained visual attention and audiological outcome measures in this population. Design: A retrospective analysis of data collected before cochlear implantation and over several years after implantation. Two groups of prelingually deaf children, one >6 years old (N = 41) and one <6 years old (N = 47) at testing, were given an age-appropriate Continuous Performance Task (CPT). In both groups, children monitored visually presented numbers for several minutes and responded whenever a designated number appeared. Hit rate, false alarm rate, and signal detection parameters were dependent measures of sustained visual attention. We tested for effects of a number of patient variables on CPT performance. Multiple regression analyses were conducted to determine if CPT scores were related to performance on several audiological outcome measures. Results: In both groups of children, mean CPT performance was low compared with published norms for normal-hearing children, and performance improved as a function of length of cochlear implant use and chronological age. The improvement in performance was manifested as an increase in hit rate and perceptual sensitivity over time. In the younger age group, a greater number of active electrodes predicted better CPT performance. Results from regression analyses indicated a relationship between CPT response criterion and receptive language in the younger age group. However, we failed to uncover any other relations between CPT performance and speech and language outcome measures. Conclusions: Our findings suggest that cochlear implantation in prelingually deaf children leads to improved performance on a test of sustained visual processing of numbers over 2 or more years of cochlear implant use. In preschool-age children who use cochlear implants, individuals who are more conservative responders on the CPT show higher receptive language scores than do individuals with more impulsive response patterns. Theoretical accounts of these findings are discussed, including cross-modal reorganization of visual attention and enhanced phonological encoding of visually presented numbers.

Original languageEnglish
Pages (from-to)389-408
Number of pages20
JournalEar and Hearing
Volume26
Issue number4
DOIs
StatePublished - Aug 2005

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Cochlear Implants
Task Performance and Analysis
Cochlear Implantation
Language
Outcome Assessment (Health Care)
Age Groups
Regression Analysis
Preschool Children
Hearing
Electrodes
Demography

ASJC Scopus subject areas

  • Otorhinolaryngology

Cite this

Development of visual attention skills in prelingually deaf children who use cochlear implants. / Horn, D. L.; Davis, R. A O; Pisoni, David; Miyamoto, Richard.

In: Ear and Hearing, Vol. 26, No. 4, 08.2005, p. 389-408.

Research output: Contribution to journalArticle

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