Speech perception abilities of adult and pediatric Nucleus implant recipients using the Spectral Peak (SPEAK) coding strategy.
A series of 73 postlinguistically deafened adults and 34 prelinguistically deafened children were evaluated with the Spectral Peak (SPEAK) coding strategy of the Nucleus 22-channel cochlear implant. The adults who received consecutive implants demonstrated rapid acquisition of open-set speech recognition skills in the initial postoperative period. Group mean sentence recognition improved to 53.5% (n = 52) after 2 weeks, 62.1% (n = 55) after 1 month, 69.8% (n = 57) after 3 months, and 74.4% (n = 42) after 6 months of use. At the 6-month evaluation interval, 43% of subjects scored greater than 90% on sound-alone sentence recognition in quiet and only one patient (2.4%) scored less than 10%. Mean monosyllabic word recognition was 35.6% after 6 months of use. The 34 prelinguistically deafened children were converted from the Multipeak strategy to Spectral Peak strategy at four large pediatric implant centers. After 6 months of using the new coding strategy, the children demonstrated significant improvements in their speech perception abilities.
Staller
S
S
Cochlear Corporation, Englewood, CO 80112, USA.
Menapace
C
C
Domico
E
E
Mills
D
D
Dowell
R C
RC
Geers
A
A
Pijl
S
S
Hasenstab
S
S
Justus
M
M
Brunelli
T
T
Adam
A
A
Borton
T
T
Lemay
M
M
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D019929:Cochlear Implantation; D003054:Cochlear Implants; D003638:Deafness / Q000151:congenital / Q000503:physiopathology / Q000601:surgery; D005069:Evaluation Studies as Topic; D005260:Female; D005500:Follow-Up Studies; D006309:Hearing / Q000502:physiology; D006801:Humans; D007858:Learning; D008297:Male; D008875:Middle Aged; D010700:Phonetics; D011474:Prosthesis Design; D012815:Signal Processing, Computer-Assisted; D013067:Speech Perception / Q000502:physiology*; D013997:Time Factors