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Kapcsolat
Surprising sequential effects on MMN |
Tartalom: | http://real.mtak.hu/34995/ |
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Archívum: | MTA Könyvtár |
Gyűjtemény: |
Status = Published
Type = Article |
Cím: |
Surprising sequential effects on MMN
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Létrehozó: |
Frost, J.D.
Winkler, IstvĂĄn
Provost, Alexander
Todd, Juanita
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Kiadó: |
Elsevier
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Dátum: |
2016-04
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Téma: |
BF01 Psychophysiology / pszichofiziolĂłgia
BF13 Memory and learning / emlĂŠkezet, tanulĂĄs
BF20 Abnormal psychology / lelki betegsĂŠgek
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Tartalmi leírás: |
The mismatch negativity (MMN) is conceptualised as a confidence-weighted error signal elicited when a deviation violates the predicted next-state based on regularity. The mechanisms underpinning its generation remain contentious. Smaller MMN response is a robust finding in schizophrenia and reduced amplitude may implicate impairment in prediction-error signalling. An enriched understanding of factors that influence MMN size in healthy people is a prerequisite for translating the relevance of reduced MMN in schizophrenia. This paper features two studies designed to explore factors that impact MMN in healthy individuals. Study 1 confirms that MMN amplitude does not faithfully reflect transition statistics and is susceptible to order-driven bias. In Study 2, we demonstrate that an order-driven bias remains despite repeated encounters with sound sequences. These data demonstrate that factors that impact on MMN size in non-clinical groups are not fully understood and that some mechanisms driving relevance filtering are likely influenced by âtop-downâ expectations.
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Nyelv: |
angol
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Típus: |
Article
PeerReviewed
info:eu-repo/semantics/article
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Formátum: |
text
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Azonosító: |
Frost, J.D. and Winkler, IstvĂĄn and Provost, Alexander and Todd, Juanita (2016) Surprising sequential effects on MMN. Biological Psychology, 116. pp. 47-56. ISSN 0301-0511
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Kapcsolat: |
10.1016/j.biopsycho.2015.10.005
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