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ORIGINAL ARTICLE
BRAINSTEM AUDITORY EVOKED POTENTIALS AND FREQUENCY-FOLLOWING RESPONSES IN PATIENTS WITH TRAUMATIC BRAIN INJURY
1
Departamento de Fonoaudiologia, Universidade Federal de São Paulo- UNIFESP, Brazil
2
Departamento de Fonoaudiologia, Universidade Federal de São Paulo - UNIFESP, Brazil
3
Departamento de Fonoaudiologia, Center for Advanced Electrophysiology and Neuroaudiology – CENA, Brazil
4
Departamento de Fonoaudiologia, Universidade Federal de São Paulo - UNIFEP, Brazil
A - Research concept and design; B - Collection and/or assembly of data; C - Data analysis and interpretation; D - Writing the article; E - Critical revision of the article; F - Final approval of article;
Publication date: 2022-03-29
Corresponding author
Ana Karina Lima Buriti
Departamento de Fonoaudiologia, Universidade Federal de São Paulo- UNIFESP, Botucatu, 04023-900, São Paulo, Brazil
Departamento de Fonoaudiologia, Universidade Federal de São Paulo- UNIFESP, Botucatu, 04023-900, São Paulo, Brazil
J Hear Sci 2022;12(1):21-28
KEYWORDS
TOPICS
ABSTRACT
Background:
Traumatic brain injuries (TBIs) damage the peripheral and central auditory pathways, impairing the patient’s sensory and cognitive processing with possible impacts on their quality of life. The objective of this study was to assess the integrity of neural processing in individuals with mild TBI.
Material and methods:
A descriptive, quantitative study on 10 people who had suffered mild TBI. We used two procedures: brainstem auditory evoked potentials (BAEPs) using click stimuli at 80 dBSPL and frequency-following responses (FFRs) using a complex (speech) stimulus, the syllable /da/, presented monaurally to the right and left ears.
Results:
Abnormal results in the BAEP assessment were characterized as prolonged latencies of waves I, III, and V and interpeak intervals I–III and I–V, bilaterally, whereas in the FFR analysis there were prolonged or absent V, A, D, E, F, and O, components bilaterally.
Conclusions:
Mild TBI negatively impacts the neural processing of auditory information, as we observed longer latencies and/or absent components in the BAEP and FFR.
Traumatic brain injuries (TBIs) damage the peripheral and central auditory pathways, impairing the patient’s sensory and cognitive processing with possible impacts on their quality of life. The objective of this study was to assess the integrity of neural processing in individuals with mild TBI.
Material and methods:
A descriptive, quantitative study on 10 people who had suffered mild TBI. We used two procedures: brainstem auditory evoked potentials (BAEPs) using click stimuli at 80 dBSPL and frequency-following responses (FFRs) using a complex (speech) stimulus, the syllable /da/, presented monaurally to the right and left ears.
Results:
Abnormal results in the BAEP assessment were characterized as prolonged latencies of waves I, III, and V and interpeak intervals I–III and I–V, bilaterally, whereas in the FFR analysis there were prolonged or absent V, A, D, E, F, and O, components bilaterally.
Conclusions:
Mild TBI negatively impacts the neural processing of auditory information, as we observed longer latencies and/or absent components in the BAEP and FFR.
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