Language processing fluency and verbal working memory in prelingually deaf long-term cochlear implant users: A pilot study
| Autor: | David B. Pisoni, William G. Kronenberger, Allison M. Ditmars, Shirley C. Henning |
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| Rok vydání: | 2018 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent medicine.medical_treatment education Pilot Projects Deafness Audiology behavioral disciplines and activities Article 050105 experimental psychology Executive Function Young Adult 03 medical and health sciences Speech and Hearing 0302 clinical medicine Cochlear implant otorhinolaryngologic diseases medicine Humans 0501 psychology and cognitive sciences Child 030223 otorhinolaryngology Processing fluency Language Language Tests Working memory 05 social sciences Term (time) Cochlear Implants Memory Short-Term Otorhinolaryngology Speech Perception Feasibility Studies Female Psychology Spoken language |
| Zdroj: | Cochlear Implants International. 19:312-323 |
| ISSN: | 1754-7628 1467-0100 |
| Popis: | OBJECTIVE: Verbal working memory (WM) is more strongly correlated with spoken language skills in prelingually deaf, early-implanted cochlear implant (CI) users than in normal-hearing peers, suggesting that CI users access WM in order to support and compensate for their slower, more effortful spoken language processing. This pilot study tested the feasibility and validity of a dual-task method for establishing the causal role of WM in basic language processing (lexical access speed) in samples of 9 CI users (ages 8-26 years) and 9 normal-hearing peers. METHODS: Participants completed tests of lexical access speed (rapid automatized picture naming test and lexical decision test) under two administration conditions: a standard condition and a dual-task WM condition requiring participants to hold numerals in working memory during completion of the lexical access speed tests. RESULTS: CI users showed more dual-task interference (decline in speed during the WM condition compared to the standard condition) than normal-hearing peers, indicating that their lexical access speed was more dependent on engagement of WM resources. Furthermore, dual-task interference scores were significantly correlated with several measures of speed-based executive functioning, consistent with the hypothesis that the dual-task method reflects the involvement of executive functioning in language processing. CONCLUSION: These pilot study results support the feasibility and validity of the dual-task WM method for investigating the influence of WM in the basic language processing of CI users. Preliminary findings indicate that CI users are more dependent on use of WM as a compensatory strategy during slow-effortful basic language processing than normal-hearing peers. |
| Databáze: | OpenAIRE |
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