Overlapping Neural Responses to Reflectional Symmetry and Glass Patterns Revealed by an ERP Priming Paradigm

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Tyson-Carr, John, Rampone, Giulia, Karakashevska, Elena, Derpsch, Yiovanna ORCID: https://orcid.org/0000-0002-4380-5058, Bertamini, Marco and Makin, Alexis D.J. (2022) Overlapping Neural Responses to Reflectional Symmetry and Glass Patterns Revealed by an ERP Priming Paradigm. Symmetry, 14 (7). pp. 1-9. ISSN 2073-8994

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Abstract

The extrastriate visual cortex is activated by visual regularity and generates an ERP known as the sustained posterior negativity (SPN). Spatial filter models offer a biologically plausible account of regularity detection based on the spectral properties of an image. These models are specific to reflection and therefore imply that reflectional symmetry and Glass patterns are coded by different neural populations. We utilised the SPN priming effect to probe representational overlap between reflection and Glass patterns. For each trial, participants were presented with a rapid succession of three patterns. In the Repeated condition, three reflections or three Glass patterns were presented. In the Changing condition, patterns alternated between reflection and Glass patterns. An increase in SPN amplitude (priming) was observed in both the Repeated and Changing conditions. Results indicate a greater representational overlap in the brain between reflection and Glass patterns than predicted by spatial filter models.

Item Type: Article
Additional Information: Data Availability Statement All data and code are available at https://osf.io/2sncj/ (accessed on 7 October 2020).
Uncontrolled Keywords: extrastriate cortex,glass patterns,reflectional symmetry,spn priming,sustained posterior negativity,computer science (miscellaneous),chemistry (miscellaneous),general mathematics,physics and astronomy (miscellaneous) ,/dk/atira/pure/subjectarea/asjc/1700/1701
Faculty \ School: Faculty of Social Sciences > School of Psychology
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Depositing User: LivePure Connector
Date Deposited: 16 Jul 2026 13:30
Last Modified: 19 Jul 2026 05:29
URI: https://ueaeprints.uea.ac.uk/id/eprint/103901
DOI: 10.3390/sym14071329

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