Abstract
We investigated whether the mismatch process between a rare stimulus and the trace of the frequent stimulus, which generates the mismatch-negativity component of the event-related potential, can tolerate a small variation in the intensity of the frequent stimulus. Series of short tone pips were presented to 10 subjects while they were reading a book and ignoring the auditory stimuli. The intensity (mean 80dB) of the frequent stimulus (600 Hz) varied wihtin a range that was different in different blocks. The probability of the infrequent stimuli which were, in different blocks, either intensity deviants (600 Hz/70dB) or frequency deviants (650 Hz/80dB) was 10%. Both deviant stimuli elicited mismatch negativity even when the intensity of the frequent stimulus varied, although the amplitude of this component decreased with the increasing variability of the frequent stimulus. These results show that the generator process of mismatch negativity tolerates some variation in the repetitive stimulus, thus indicating that this process is also activated in ecologically more valid conditions. This is crucial to the interpretation of the generator process of mismatch negativity as a biologically vital warning mechanism.
| Original language | English |
|---|---|
| Pages (from-to) | 228-235 |
| Number of pages | 8 |
| Journal | Psychophysiology |
| Volume | 27 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1990 |
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Keywords
- audition
- event-related brain potentials
- mismatch negativity
- sensory memory
ASJC Scopus subject areas
- Physiology
- Physiology (medical)
- Psychology(all)
- Neuropsychology and Physiological Psychology
- Experimental and Cognitive Psychology
Cite this
The effect of small variation of the frequent auditory stimulus on the event-related brain potential to the infrequent stimulus. / Winkler, I.; Paavilainen, P.; Alho, K.; Reinikainen, K.; Sams, M.; Naatanen, R.
In: Psychophysiology, Vol. 27, No. 2, 1990, p. 228-235.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The effect of small variation of the frequent auditory stimulus on the event-related brain potential to the infrequent stimulus
AU - Winkler, I.
AU - Paavilainen, P.
AU - Alho, K.
AU - Reinikainen, K.
AU - Sams, M.
AU - Naatanen, R.
PY - 1990
Y1 - 1990
N2 - We investigated whether the mismatch process between a rare stimulus and the trace of the frequent stimulus, which generates the mismatch-negativity component of the event-related potential, can tolerate a small variation in the intensity of the frequent stimulus. Series of short tone pips were presented to 10 subjects while they were reading a book and ignoring the auditory stimuli. The intensity (mean 80dB) of the frequent stimulus (600 Hz) varied wihtin a range that was different in different blocks. The probability of the infrequent stimuli which were, in different blocks, either intensity deviants (600 Hz/70dB) or frequency deviants (650 Hz/80dB) was 10%. Both deviant stimuli elicited mismatch negativity even when the intensity of the frequent stimulus varied, although the amplitude of this component decreased with the increasing variability of the frequent stimulus. These results show that the generator process of mismatch negativity tolerates some variation in the repetitive stimulus, thus indicating that this process is also activated in ecologically more valid conditions. This is crucial to the interpretation of the generator process of mismatch negativity as a biologically vital warning mechanism.
AB - We investigated whether the mismatch process between a rare stimulus and the trace of the frequent stimulus, which generates the mismatch-negativity component of the event-related potential, can tolerate a small variation in the intensity of the frequent stimulus. Series of short tone pips were presented to 10 subjects while they were reading a book and ignoring the auditory stimuli. The intensity (mean 80dB) of the frequent stimulus (600 Hz) varied wihtin a range that was different in different blocks. The probability of the infrequent stimuli which were, in different blocks, either intensity deviants (600 Hz/70dB) or frequency deviants (650 Hz/80dB) was 10%. Both deviant stimuli elicited mismatch negativity even when the intensity of the frequent stimulus varied, although the amplitude of this component decreased with the increasing variability of the frequent stimulus. These results show that the generator process of mismatch negativity tolerates some variation in the repetitive stimulus, thus indicating that this process is also activated in ecologically more valid conditions. This is crucial to the interpretation of the generator process of mismatch negativity as a biologically vital warning mechanism.
KW - audition
KW - event-related brain potentials
KW - mismatch negativity
KW - sensory memory
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U2 - 10.1111/j.1469-8986.1990.tb00374.x
DO - 10.1111/j.1469-8986.1990.tb00374.x
M3 - Article
VL - 27
SP - 228
EP - 235
JO - Psychophysiology
JF - Psychophysiology
SN - 0048-5772
IS - 2
ER -