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Localizing pre-attentive auditory memory-based comparison: magnetic mismatch negativity to pitch change.
Neuroimage. 2007 Aug 15; 37(2):561-71.N

Abstract

Changes in the pitch of repetitive sounds elicit the mismatch negativity (MMN) of the event-related brain potential (ERP). There exist two alternative accounts for this index of automatic change detection: (1) A sensorial, non-comparator account according to which ERPs in oddball sequences are affected by differential refractory states of frequency-specific afferent cortical neurons. (2) A cognitive, comparator account stating that MMN reflects the outcome of a memory comparison between a neuronal model of the frequently presented standard sound with the sensory memory representation of the changed sound. Using a condition controlling for refractoriness effects, the two contributions to MMN can be disentangled. The present study used whole-head MEG to further elucidate the sensorial and cognitive contributions to frequency MMN. Results replicated ERP findings that MMN to pitch change is a compound of the activity of a sensorial, non-comparator mechanism and a cognitive, comparator mechanism which could be separated in time. The sensorial part of frequency MMN consisting of spatially dipolar patterns was maximal in the late N1 range (105-125 ms), while the cognitive part peaked in the late MMN-range (170-200 ms). Spatial principal component analyses revealed that the early part of the traditionally measured MMN (deviant minus standard) is mainly due to the sensorial mechanism while the later mainly due to the cognitive mechanism. Inverse modeling revealed sources for both MMN contributions in the gyrus temporales transversus, bilaterally. These MEG results suggest temporally distinct but spatially overlapping activities of non-comparator-based and comparator-based mechanisms of automatic frequency change detection in auditory cortex.

Authors+Show Affiliations

Max Planck Institute of Human Cognitive and Brain Science, Stephanstr. 1a, D-04104 Leipzig, Germany. maess@cbs.mpg.deNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17596966

Citation

Maess, Burkhard, et al. "Localizing Pre-attentive Auditory Memory-based Comparison: Magnetic Mismatch Negativity to Pitch Change." NeuroImage, vol. 37, no. 2, 2007, pp. 561-71.
Maess B, Jacobsen T, Schröger E, et al. Localizing pre-attentive auditory memory-based comparison: magnetic mismatch negativity to pitch change. Neuroimage. 2007;37(2):561-71.
Maess, B., Jacobsen, T., Schröger, E., & Friederici, A. D. (2007). Localizing pre-attentive auditory memory-based comparison: magnetic mismatch negativity to pitch change. NeuroImage, 37(2), 561-71.
Maess B, et al. Localizing Pre-attentive Auditory Memory-based Comparison: Magnetic Mismatch Negativity to Pitch Change. Neuroimage. 2007 Aug 15;37(2):561-71. PubMed PMID: 17596966.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Localizing pre-attentive auditory memory-based comparison: magnetic mismatch negativity to pitch change. AU - Maess,Burkhard, AU - Jacobsen,Thomas, AU - Schröger,Erich, AU - Friederici,Angela D, Y1 - 2007/06/02/ PY - 2007/02/23/received PY - 2007/04/25/revised PY - 2007/05/11/accepted PY - 2007/6/29/pubmed PY - 2007/10/13/medline PY - 2007/6/29/entrez SP - 561 EP - 71 JF - NeuroImage JO - Neuroimage VL - 37 IS - 2 N2 - Changes in the pitch of repetitive sounds elicit the mismatch negativity (MMN) of the event-related brain potential (ERP). There exist two alternative accounts for this index of automatic change detection: (1) A sensorial, non-comparator account according to which ERPs in oddball sequences are affected by differential refractory states of frequency-specific afferent cortical neurons. (2) A cognitive, comparator account stating that MMN reflects the outcome of a memory comparison between a neuronal model of the frequently presented standard sound with the sensory memory representation of the changed sound. Using a condition controlling for refractoriness effects, the two contributions to MMN can be disentangled. The present study used whole-head MEG to further elucidate the sensorial and cognitive contributions to frequency MMN. Results replicated ERP findings that MMN to pitch change is a compound of the activity of a sensorial, non-comparator mechanism and a cognitive, comparator mechanism which could be separated in time. The sensorial part of frequency MMN consisting of spatially dipolar patterns was maximal in the late N1 range (105-125 ms), while the cognitive part peaked in the late MMN-range (170-200 ms). Spatial principal component analyses revealed that the early part of the traditionally measured MMN (deviant minus standard) is mainly due to the sensorial mechanism while the later mainly due to the cognitive mechanism. Inverse modeling revealed sources for both MMN contributions in the gyrus temporales transversus, bilaterally. These MEG results suggest temporally distinct but spatially overlapping activities of non-comparator-based and comparator-based mechanisms of automatic frequency change detection in auditory cortex. SN - 1053-8119 UR - https://www.unboundmedicine.com/medline/citation/17596966/Localizing_pre_attentive_auditory_memory_based_comparison:_magnetic_mismatch_negativity_to_pitch_change_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1053-8119(07)00462-4 DB - PRIME DP - Unbound Medicine ER -