The Use of the Gaps-In-Noise Test as an Index of the Enhanced Left Temporal Cortical Thinning Associated with the Transition between Mild Cognitive Impairment and Alzheimer's Disease.
Τίτλος | The Use of the Gaps-In-Noise Test as an Index of the Enhanced Left Temporal Cortical Thinning Associated with the Transition between Mild Cognitive Impairment and Alzheimer's Disease. |
Publication Type | Journal Article |
Year of Publication | 2017 |
Authors | Iliadou, V. Vivian, Bamiou D-E., Sidiras C., Moschopoulos N. P., Tsolaki M., Nimatoudis I., & Chermak G. D. |
Journal | J Am Acad Audiol |
Volume | 28 |
Issue | 5 |
Pagination | 463-471 |
Date Published | 2017 May |
ISSN | 2157-3107 |
Λέξεις κλειδιά | Aged, Aged, 80 and over, Alzheimer Disease, Audiometry, Pure-Tone, Auditory Perception, Auditory Perceptual Disorders, Auditory Threshold, Case-Control Studies, Cerebral Cortex, Cognitive Dysfunction, Cross-Sectional Studies, Female, Hearing Tests, Humans, Male, Mental Processes, Middle Aged, Noise, Perceptual Masking, Speech Perception |
Abstract | BACKGROUND: The known link between auditory perception and cognition is often overlooked when testing for cognition.PURPOSE: To evaluate auditory perception in a group of older adults diagnosed with mild cognitive impairment (MCI).RESEARCH DESIGN: A cross-sectional study of auditory perception.STUDY SAMPLE: Adults with MCI and adults with no documented cognitive issues and matched hearing sensitivity and age.DATA COLLECTION: Auditory perception was evaluated in both groups, assessing for hearing sensitivity, speech in babble (SinB), and temporal resolution.RESULTS: Mann-Whitney test revealed significantly poorer scores for SinB and temporal resolution abilities of MCIs versus normal controls for both ears. The right-ear gap detection thresholds on the Gaps-In-Noise (GIN) Test clearly differentiated between the two groups (p < 0.001), with no overlap of values. The left ear results also differentiated the two groups (p < 0.01); however, there was a small degree of overlap ∼8-msec threshold values. With the exception of the left-ear inattentiveness index, which showed a similar distribution between groups, both impulsivity and inattentiveness indexes were higher for the MCIs compared to the control group.CONCLUSIONS: The results support central auditory processing evaluation in the elderly population as a promising tool to achieve earlier diagnosis of dementia, while identifying central auditory processing deficits that can contribute to communication deficits in the MCI patient population. A measure of temporal resolution (GIN) may offer an early, albeit indirect, measure reflecting left temporal cortical thinning associated with the transition between MCI and Alzheimer's disease. |
DOI | 10.3766/jaaa.16075 |
Alternate Journal | J Am Acad Audiol |
PubMed ID | 28534735 |