| The dynamics of visual experience, an EEG study of subjective pattern formation. | |
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MedLine Citation:
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PMID: 22292053 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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BACKGROUND: Since the origin of psychological science a number of studies have reported visual pattern formation in the absence of either physiological stimulation or direct visual-spatial references. Subjective patterns range from simple phosphenes to complex patterns but are highly specific and reported reliably across studies. METHODOLOGY/PRINCIPAL FINDINGS: Using independent-component analysis (ICA) we report a reduction in amplitude variance consistent with subjective-pattern formation in ventral posterior areas of the electroencephalogram (EEG). The EEG exhibits significantly increased power at delta/theta and gamma-frequencies (point and circle patterns) or a series of high-frequency harmonics of a delta oscillation (spiral patterns). CONCLUSIONS/SIGNIFICANCE: Subjective-pattern formation may be described in a way entirely consistent with identical pattern formation in fluids or granular flows. In this manner, we propose subjective-pattern structure to be represented within a spatio-temporal lattice of harmonic oscillations which bind topographically organized visual-neuronal assemblies by virtue of low frequency modulation. |
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Authors:
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Mark A Elliott; Deirdre Twomey; Mark Glennon |
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Publication Detail:
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Type: Journal Article Date: 2012-01-26 |
Journal Detail:
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Title: PloS one Volume: 7 ISSN: 1932-6203 ISO Abbreviation: PLoS ONE Publication Date: 2012 |
Date Detail:
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Created Date: 2012-01-31 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101285081 Medline TA: PLoS One Country: United States |
Other Details:
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Languages: eng Pagination: e30830 Citation Subset: IM |
Affiliation:
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School of Psychology, National University of Ireland Galway, Galway, Republic of Ireland. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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