- Title
- Sensory suppression effects to self-initiated sounds reflect the attenuation of the unspecific N1 component of the auditory ERP
- Creator
- Sanmiguel, Iria; Todd, Juanita; Schröeger, Erich
- Relation
- Psychophysiology Vol. 50, Issue 4, p. 334-343
- Publisher Link
- http://dx.doi.org/10.1111/psyp.12024
- Publisher
- Wiley-Blackwell Publishing
- Resource Type
- journal article
- Date
- 2013
- Description
- The suppression of the auditory N1 event-related potential (ERP) to self-initiated sounds became a popular tool to tap into sensory-specific forward modeling. It is assumed that processing in the auditory cortex is attenuated due to a match between sensory stimulation and a specific sensory prediction afforded by a forward model of the motor command. The present study shows that N1 suppression was dramatically increased with long (∼3 s) stimulus onset asynchronies (SOA), whereas P2 suppression was equal in all SOA conditions (0.8, 1.6, 3.2 s). Thus, the P2 was found to be more sensitive to self-initiation effects than the N1 with short SOAs. Moreover, only the unspecific but not the sensory-specific N1 components were suppressed for self-initiated sounds suggesting that N1-suppression effects mainly reflect an attenuated orienting response. We argue that the N1-suppression effect is a rather indirect measure of sensory-specific forward models.
- Subject
- N1 suppression; N1 components; self-generation; sensory attenuation; auditory; event-related potential (ERP); human; stimulus onset asynchrony (SOA)
- Identifier
- http://hdl.handle.net/1959.13/1299641
- Identifier
- uon:19906
- Identifier
- ISSN:0048-5772
- Language
- eng
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