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Auditory Evoked Responses to Unpredictable Stimuli
Abstract
The auditory evoked response (AER) to unpredictable stimuli was studied in 18 S s. 100 msec sound bursts consisting of either a pure tone or white noise were presented every sec. One type of stimulus constituted the frequent expected stimulus and the other the infrequent stimulus that occurred as a random substitution. For the low probability (LP) stimulus condition, the mean ratio of infrequent to frequent was 1:30; for the intermediate probability (IP), 1:15; and for the high probability (HP), 1:7.5. S s were instructed to ignore the sounds. The amplitude of a late positive wave (P3) of the AER was largest in the LP and smallest in the HP condition. There was a general decrease of all AER components over the course of a session. No evidence of dishabituation in the AER to the stimuli following the infrequent stimuli was obtained. The results of a detailed analysis of two orbital leads make it unlikely that eye movement or eye blink could account for the results.
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Cited by
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Donchin, E., & Coles, M. G. H. (1988) · Behavioral and Brain Sciences · doi:10.1017/s0140525x00058027 · Cited by 3,585
Näätänen, R., & Picton, T. (1987) · Psychophysiology · doi:10.1111/j.1469-8986.1987.tb00311.x · Cited by 3,321
Stimulus novelty, task relevance and the visual evoked potential in man
Courchesne, E., Hillyard, S. A., & Galambos, R. (1975) · Electroencephalography and Clinical Neurophysiology · doi:10.1016/0013-4694(75)90003-6 · Cited by 1,012
Effects of locus coeruleus lesions on auditory, long-latency, event-related potentials in monkey
Pineda, J., Foote, S., & Neville, H. (1989) · The Journal of Neuroscience · doi:10.1523/jneurosci.09-01-00081.1989 · Cited by 184
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Corby, J. C. (1978) · Archives of General Psychiatry · doi:10.1001/archpsyc.1978.01770290053005 · Cited by 130
Metadata
- Authors
- Roth, W. T.
- Venue
- Psychophysiology
- Publisher
- Wiley
- Published
- 1973-03
- Volume
- 10
- Issue
- 2
- Pages
- 125-138
- ISSN
- 0048-5772 (ISSN-L)
- 1469-8986
- OpenAlex
- W2083133599
- Cited by
- 196
- References
- 0
- FWCI
- 7.39
- Type
- journal article
- Language
- en
- Open access
- closed
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