Electrophysiological Correlates of Change Detection during Delayed Matching Task: A Comparison of Different References
Liang, T., Hu, Z., Li, Y., Ye, C., & Liu, Q. (2017). Electrophysiological Correlates of Change Detection during Delayed Matching Task: A Comparison of Different References. Frontiers in Neuroscience, 11, Article 527. https://doi.org/10.3389/fnins.2017.00527
Julkaistu sarjassa
Frontiers in NeurosciencePäivämäärä
2017Tekijänoikeudet
© 2017 Liang, Hu, Li, Ye and Liu. This is an open-access article distributed
under the terms of the Creative Commons Attribution License (CC BY).
Detecting the changed information between memory representation and incoming
sensory inputs is a fundamental cognitive ability. By offering the promise of excellent
temporal resolution, event-related potential (ERP) technique has served as a primary tool
for studying this process with reference of the linked mastoid (LM). However, given that
LM may distort the ERP signals, it is still undetermined whether LM is the best reference
choice. The goal of the current study was to systematically compare LM, reference
electrode standardization technique (REST) and average reference (AR) for assessing
the ERP correlates of change detection during a delayed matching task. Colored shapes
were adopted as materials while both the task-relevant shape feature and -irrelevant
color feature could be changed. The results of the ERP amplitude showed that both
of the task-relevant and -conjunction feature changes elicited significantly more positive
posterior P2 in REST and AR, but not in LM. Besides, significantly increased N270 was
observed in task-relevant and -conjunction feature changes in both the REST and LM,
but in the conjunction feature change in AR. Only the REST-obtained N270 revealed a
significant increment in task-irrelevant feature change, which was compatible with the
delayed behavioral performance. Statistical parametric scalp mapping (SPSM) results
showed a left posterior distribution for AR, an anterior distribution for LM, and both the
anterior and left posterior distributions for REST. These results indicate that different types
of references may provide distinct cognitive interpretations. Interestingly, only the SPSM
of REST was consistent with previous fMRI findings. Combined with the evidence of
simulation studies and the current observations, we take the REST-based results as the
objective one, and recommend using REST technology in the future ERP data analysis.
...
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Frontiers Research FoundationISSN Hae Julkaisufoorumista
1662-4548Asiasanat
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https://converis.jyu.fi/converis/portal/detail/Publication/27277012
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