Please use this identifier to cite or link to this item: http://hdl.handle.net/11667/131
Appears in Collections:University of Stirling Research Data
Title: Neural responses to dynamic adaptation reveal the dissociation between the processing of the shape of contours and textures
Creator(s): Wright, Damien
Gheorghiu, Elena
Dering, Benjamin
Martinovic, Jasna
Contact Email: dwrigh12@ed.ac.uk
Keywords: EEG
ERP
Adaptation
Contours
Textures
Context
Surround suppression
Citation: Wright, D; Gheorghiu, E; Dering, B; Martinovic, J (2020): Neural responses to dynamic adaptation reveal the dissociation between the processing of the shape of contours and textures. University of Stirling. School of Natural Sciences. Dataset. http://hdl.handle.net/11667/131
Publisher: University of Stirling. School of Natural Sciences
Dataset Description (Abstract): Shape-adaptation studies show that surround textures can inhibit the processing of contours. Using event-related potentials (ERP), we examined the time-course of neural processes involved in contour-shape and texture-shape processing following adaptation to contours and textures. Contours were made of Gabor strings whose orientations were either tangential or orthogonal to the contour path, while textures were made of a series of contours arranged in parallel. We found that in the absence of adaptation, the perceptual N1 component for contour-tests peaked later and increased in amplitude compared to the N1 for texture-tests, consistent with previous literature on contour and texture-driven ERPs. Following adaptation, the ERP difference wave (no-adaptor minus with-adaptor conditions) for contour-tests showed two components: an early (70-230 ms) and a late component (250-500 ms) that were differentially affected by the presence of surround-texture adaptor. From the temporal sequence of ERP modulations, we conclude that texture processing begins before contour processing and encompasses the stages of perceptual processing reflected in the earliest components of the visual evoked potential (P1 and N1). Interestingly, our dynamic adaptation paradigm shows two difference-wave components that are differentially modulated by adaptation to contours when presented in isolation (no-surround) and embedded in texture-surround (context). Altogether these findings support the dissociation between contour and texture processing mechanisms in human vision.
Dataset Description (TOC): Grand average ERPs and difference wave. See Readme file for descriptions.
Replaced By: http://hdl.handle.net/11667/139
Type: dataset
Contract/Grant Title: Elucidating the role of colour in shape processing in human vision
Funder(s): Leverhulme Trust
Contract/Grant Number: RPG-2016-056
Worktribe Project ID: 418569
URI: http://hdl.handle.net/11667/131
Rights: Rights covered by the standard CC-BY 4.0 licence: https://creativecommons.org/licenses/by/4.0/
Affiliation(s) of Dataset Creator(s): University of Stirling (Psychology)
University of Aberdeen

Files in This Item:
File Description SizeFormat 
Exp1 -GrandAverageSnakeContourAdaptor -SnakeTextureTestDifferenceWave.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp1- GrandAverageSnakeContourNoAdaptation.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp1- GrandAverageOrthogonalOrientationCentreSurroundAdaptor- SnakeContourTest.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp1- GrandAverageOrthogonalOrientationCentreSurroundAdaptor-SnakeContourTestDifferenceWave.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp1- GrandAverageSameOrientationCentreSurroundAdaptor-SnakeContourTest.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp1- GrandAverageSameOrientationCentreSurroundAdaptor-SnakeContourTestDifferenceWave.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp1- GrandAverageSameOrientationCentreSurroundAdaptor- SnakeTextureTest.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp1- GrandAverageSameOrientationCentreSurroundAdaptor-SnakeTextureTestDifferenceWave.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp1- GrandAverageSnakeTextureNoAdaptation.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp1- GrandAverageSnakeContourAdaptor-SnakeContourTest.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp1- GrandAverageSnakeContourAdaptor-SnakeContourTestDifferenceWave.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp1- GrandAverageSnakeContourAdaptor - SnakeTextureTest.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp2 - GrandAverageLadderContourAdaptor-LadderContourTestDifferenceWave.mat6.15 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp2 - GrandAverageLadderContourAdaptorSameOrientationCentreSurround-LadderTextureTest.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp2 - GrandAverageLadderContourAdaptorSameOrientationCentreSurround- LadderTextureTestDifferenceWave.mat6.15 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp2 - GrandAverageLadderContourNoAdaptation.mat6.15 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp2 - GrandAverageLadderOrthogonalOrientationCentreSurroundAdaptor-LadderContourTest.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp2 - GrandAverageOrthogonalOrientationCentreSurroundAdaptor-LadderContourTestDifferenceWave.mat6.15 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp2 - GrandAverageSameOrientationCentreSurroundAdaptor - LadderContourTest.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp2 - GrandAverageSameOrientationCentreSurroundAdaptor- LadderContourTestDifferenceWave.mat6.15 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp2 - GrandAverageSameOrientationCentreSurroundAdaptor-LadderTextureTest.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp2 - GrandAverageSameOrientationCentreSurroundAdaptor - LadderTextureTestDifferenceWave.mat6.15 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp2 - GrandAverageLadderTextureNoAdaptation.mat10.2 MBUnknownUnder Embargo until 1/4/2020     Request a copy
Exp2 - GrandAverageLadderContourAdaptor-LadderContourTest.mat6.15 MBUnknownUnder Embargo until 1/4/2020     Request a copy
ReadMe.xlsxDescriptions of files8.72 kBMicrosoft Excel XMLUnder Embargo until 1/4/2020     Request a copy

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