Abstract
It has been hypothesized that age-related hearing loss is caused not only by peripheral but also central changes in the auditory system. Many studies used event-related potentials (ERPs) elicited by sound onsets to characterize the age-related differences in central auditory processing. Age-related ERP enhancements in such studies have often been interpreted in terms of elevated sensitivity to auditory stimulation. Such ERPs, however, comprise various components reflecting different aspects of auditory and task-related processing. The composition of the waveforms may considerably differ for ERPs elicited by other auditory events. In the present study, ERPs elicited by tone offsets were used to characterize processing differences between younger and older adults in a short-go, tone-duration discrimination paradigm. Whereas the onset-related auditory ERP was enhanced in the older adult group, no age-related differences were found in the offset-related auditory ERPs observable at temporal electrodes. In older adults, however, offset-related processing was dominated by an N2 that could reflect enhanced cognitive control activities. Because N2 was present regardless discrimination difficulty, younger adults may have framed the task as offset detection, whereas older adults represented the task as “genuine” discrimination.
| Original language | English |
|---|---|
| Pages (from-to) | 232-246 |
| Number of pages | 15 |
| Journal | Neurobiology of Aging |
| Volume | 57 |
| DOIs | |
| Publication status | Published - szept. 1 2017 |
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ASJC Scopus subject areas
- Neuroscience(all)
- Ageing
- Clinical Neurology
- Developmental Biology
- Geriatrics and Gerontology
Cite this
Sound offset-related brain potentials show retained sensory processing, but increased cognitive control activity in older adults. / Horváth, J.; Gaál, Zsófia Anna; Volosin, Márta.
In: Neurobiology of Aging, Vol. 57, 01.09.2017, p. 232-246.Research output: Article
}
TY - JOUR
T1 - Sound offset-related brain potentials show retained sensory processing, but increased cognitive control activity in older adults
AU - Horváth, J.
AU - Gaál, Zsófia Anna
AU - Volosin, Márta
PY - 2017/9/1
Y1 - 2017/9/1
N2 - It has been hypothesized that age-related hearing loss is caused not only by peripheral but also central changes in the auditory system. Many studies used event-related potentials (ERPs) elicited by sound onsets to characterize the age-related differences in central auditory processing. Age-related ERP enhancements in such studies have often been interpreted in terms of elevated sensitivity to auditory stimulation. Such ERPs, however, comprise various components reflecting different aspects of auditory and task-related processing. The composition of the waveforms may considerably differ for ERPs elicited by other auditory events. In the present study, ERPs elicited by tone offsets were used to characterize processing differences between younger and older adults in a short-go, tone-duration discrimination paradigm. Whereas the onset-related auditory ERP was enhanced in the older adult group, no age-related differences were found in the offset-related auditory ERPs observable at temporal electrodes. In older adults, however, offset-related processing was dominated by an N2 that could reflect enhanced cognitive control activities. Because N2 was present regardless discrimination difficulty, younger adults may have framed the task as offset detection, whereas older adults represented the task as “genuine” discrimination.
AB - It has been hypothesized that age-related hearing loss is caused not only by peripheral but also central changes in the auditory system. Many studies used event-related potentials (ERPs) elicited by sound onsets to characterize the age-related differences in central auditory processing. Age-related ERP enhancements in such studies have often been interpreted in terms of elevated sensitivity to auditory stimulation. Such ERPs, however, comprise various components reflecting different aspects of auditory and task-related processing. The composition of the waveforms may considerably differ for ERPs elicited by other auditory events. In the present study, ERPs elicited by tone offsets were used to characterize processing differences between younger and older adults in a short-go, tone-duration discrimination paradigm. Whereas the onset-related auditory ERP was enhanced in the older adult group, no age-related differences were found in the offset-related auditory ERPs observable at temporal electrodes. In older adults, however, offset-related processing was dominated by an N2 that could reflect enhanced cognitive control activities. Because N2 was present regardless discrimination difficulty, younger adults may have framed the task as offset detection, whereas older adults represented the task as “genuine” discrimination.
KW - Aging
KW - Cognitive control
KW - Event-related potentials
KW - Hearing
KW - N2
KW - T-complex
UR - http://www.scopus.com/inward/record.url?scp=85021723219&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85021723219&partnerID=8YFLogxK
U2 - 10.1016/j.neurobiolaging.2017.05.026
DO - 10.1016/j.neurobiolaging.2017.05.026
M3 - Article
C2 - 28666708
AN - SCOPUS:85021723219
VL - 57
SP - 232
EP - 246
JO - Neurobiology of Aging
JF - Neurobiology of Aging
SN - 0197-4580
ER -