TY - JOUR
T1 - Increased cortical activation during hearing of speech in cochlear implant users
AU - Naito, Yasushi
AU - Tateya, Ichiro
AU - Fujiki, Nobuya
AU - Hirano, Shigeru
AU - Ishizu, Koichi
AU - Nagahama, Yasuhiro
AU - Fukuyama, Hidenao
AU - Kojima, Hisayoshi
N1 - Funding Information:
This study was supported by Grant-in-Aid for Scientific Research (B2) 09470370 and 11877293 from the Japanese Ministry of Education, Science, Sports and Culture and a Health Scientific Research Grant for Research on Eye and Ear Sciences, Immunology, Allergy and Organ Transplantation from the Japanese Ministry of Health and Welfare.
PY - 2000/5
Y1 - 2000/5
N2 - To investigate the cortical activities while listening to noise and speech in cochlear implant (CI) users, we compared cerebral blood flow in postlingually deafened CI users with that in normal hearing subjects using positron emission tomography. While noise activation in CI users did not significantly differ from that in normal subjects, hearing speech activated more cortical areas in CI users than in normal subjects. A comparison of speech activation in these two groups revealed higher activation in CI users not only in the temporal cortices but also in Broca's area and its right hemisphere homologue, the supplementary motor area and the anterior cingulate gyrus. In postlingually deafened subjects, the hearing of speech coded by CI may be accompanied by increased activation of both the temporal and frontal cortices. Copyright (C) 2000 Elsevier Science B.V.
AB - To investigate the cortical activities while listening to noise and speech in cochlear implant (CI) users, we compared cerebral blood flow in postlingually deafened CI users with that in normal hearing subjects using positron emission tomography. While noise activation in CI users did not significantly differ from that in normal subjects, hearing speech activated more cortical areas in CI users than in normal subjects. A comparison of speech activation in these two groups revealed higher activation in CI users not only in the temporal cortices but also in Broca's area and its right hemisphere homologue, the supplementary motor area and the anterior cingulate gyrus. In postlingually deafened subjects, the hearing of speech coded by CI may be accompanied by increased activation of both the temporal and frontal cortices. Copyright (C) 2000 Elsevier Science B.V.
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U2 - 10.1016/S0378-5955(00)00035-6
DO - 10.1016/S0378-5955(00)00035-6
M3 - Article
C2 - 10771191
AN - SCOPUS:0034111006
VL - 143
SP - 139
EP - 146
JO - Hearing Research
JF - Hearing Research
SN - 0378-5955
IS - 1-2
ER -