Abstract
The mismatch negativity (MMN) component of the auditory event-related
brain potential reflects the automatic detection of sound change.
MMN to occasionally omitted sounds in a tone series can be used to
investigate the time course of temporal integration in the acoustic
system. We used MMN to study differences in temporal integration
in musicians and non-musicians. In experiment 1, occasionally omitted
'sounds' in an otherwise regular tone series evoked a reliable MMN
at interstimulus intervals (SOAs) of 100, 120, 180 and 220 ms in
musicians. In non-musicians, MMN was smaller/absent in the 180 and
220 ms SOAs, respectively. In experiment 2, deviance of a tone was
induced by presenting tones at a shorter SOA (100 or 130 ms) compared
to the standard stimulus (150 ms). Musicians showed a reliable MMN
for both deviant SOAs whereas non-musicians showed an MMN only for
tones presented 50 ms prior to a standard tone (SOA 100 ms). These
results indicate that the temporal window of integration seems to
be longer and more precise in musicians compared to musical laypersons
and that long-term training is reflected in changes in neural activity.
- acoustic
- anatomy
- cortex,auditory
- cortex:
- factors,music,musicality,neuro,perception
- histology,auditory
- mapping,electroencephalography,evoked
- perception,auditory
- perception:
- physiology,auditory
- physiology,auditory:
- physiology,brain
- physiology,neuropsychological
- plasticity,neuronal
- plasticity:
- potentials,female,humans,male,music,neuronal
- stimulation,adolescent,adult,audiometry,auditory,auditory
- tests,time
- \&
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