The role of the cerebellum in auditory processing using the SSI test.
The Synthetic Sentence Identification (SSI) test assesses central auditory pathways by measuring auditory and visual sensitivity and testing selective attention. Cerebellum activation in auditory attention and sensorial activity modulation have already been described. Assessing patients with cerebellar lesions alone using the SSI test can confirm the role of the cerebellum in auditory processing.


OBJECTIVE
To evaluate the role of the cerebellum in auditory processing in individuals with normal hearing and in those with chronic cerebellum lesions, using the SSI test.


METHODS
Cross-sectional cohort study. A study group comprising 18 patients with chronic cerebellar lesion and a control group of 20 healthy individuals were assessed. The SSI test was applied in an Ipsilateral Competitive Message (ICM) and Contralateral Competitive Message (CCM) modes. To compare the results between groups, we used the chi-square test for qualitative variables.


RESULTS
A statistically significant difference was found between the study and control groups using the ICM mode of the SSI test (p=0.035), but not in the CCM mode (p=0.083).


CONCLUSIONS
The results on the SSI confirmed cerebellar participation in auditory processing in individuals with chronic cerebellar lesions and in those with normal hearing assessed in this study.
ENT Residency Program, Hospital do Servidor Público Municipal.
Patricia Maria
PM
Sens
Clemente Isnard Ribeiro de
CI
Almeida
Marisa Mara Neves de
MM
Souza
Josyane Borges A
JB
Gonçalves
Luiz Claudio do
LC
Carmo
D000158:Acoustic Impedance Tests; D000293:Adolescent; D000328:Adult; D001302:Audiometry, Speech; D001306:Auditory Pathways / Q000503:physiopathology*; D001309:Auditory Threshold; D016022:Case-Control Studies; D002526:Cerebellar Diseases / Q000503:physiopathology*; D002531:Cerebellum / Q000502:physiology*; D002648:Child; D002908:Chronic Disease; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013063:Speech Discrimination Tests; D013065:Speech Intelligibility / Q000502:physiology*; D013067:Speech Perception / Q000502:physiology*; D055815:Young Adult