The Role of Configurality in the Thatcher Illusion: An ERP Study
Authors: Mestry, N., Menneer, T., Wenger, M.J., Benikos, N., McCarthy, R.A. and Donnelly, N.
Journal: Psychonomic Bulletin and Review
Volume: 22
Issue: 2
Pages: 445-452
eISSN: 1531-5320
ISSN: 1069-9384
DOI: 10.3758/s13423-014-0705-3
Abstract:The Thatcher illusion (Thompson in Perception, 9, 483–484, 1980) is often explained as resulting from recognising a distortion of configural information when ‘Thatcherised’ faces are upright but not when inverted. However, recent behavioural studies suggest that there is an absence of perceptual configurality in upright Thatcherised faces (Donnelly et al. in Attention, Perception & Psychophysics, 74, 1475–1487, 2012) and both perceptual and decisional sources of configurality in behavioural tasks with Thatcherised stimuli (Mestry, Menneer et al. in Frontiers in Psychology, 3, 456, 2012). To examine sources linked to the behavioural experience of the illusion, we studied inversion and Thatcherisation of faces (comparing across conditions in which no features, the eyes, the mouth, or both features were Thatcherised) on a set of event-related potential (ERP) components. Effects of inversion were found at the N170, P2 and P3b. Effects of eye condition were restricted to the N170 generated in the right hemisphere. Critically, an interaction of orientation and eye Thatcherisation was found for the P3b amplitude. Results from an individual with acquired prosopagnosia who can discriminate Thatcherised from typical faces but cannot categorise them or perceive the illusion (Mestry, Donnelly et al. in Neuropsychologia, 50, 3410-3418, 2012) only differed from typical participants at the P3b component. Findings suggest the P3b links most directly to the experience of the illusion. Overall, the study showed evidence consistent with both perceptual and decisional sources and the need to consider both in relation to configurality.
https://eprints.bournemouth.ac.uk/31896/
Source: Scopus
The role of configurality in the Thatcher illusion: an ERP study.
Authors: Mestry, N., Menneer, T., Wenger, M.J., Benikos, N., McCarthy, R.A. and Donnelly, N.
Journal: Psychon Bull Rev
Volume: 22
Issue: 2
Pages: 445-452
eISSN: 1531-5320
DOI: 10.3758/s13423-014-0705-3
Abstract:The Thatcher illusion (Thompson in Perception, 9, 483-484, 1980) is often explained as resulting from recognising a distortion of configural information when 'Thatcherised' faces are upright but not when inverted. However, recent behavioural studies suggest that there is an absence of perceptual configurality in upright Thatcherised faces (Donnelly et al. in Attention, Perception & Psychophysics, 74, 1475-1487, 2012) and both perceptual and decisional sources of configurality in behavioural tasks with Thatcherised stimuli (Mestry, Menneer et al. in Frontiers in Psychology, 3, 456, 2012). To examine sources linked to the behavioural experience of the illusion, we studied inversion and Thatcherisation of faces (comparing across conditions in which no features, the eyes, the mouth, or both features were Thatcherised) on a set of event-related potential (ERP) components. Effects of inversion were found at the N170, P2 and P3b. Effects of eye condition were restricted to the N170 generated in the right hemisphere. Critically, an interaction of orientation and eye Thatcherisation was found for the P3b amplitude. Results from an individual with acquired prosopagnosia who can discriminate Thatcherised from typical faces but cannot categorise them or perceive the illusion (Mestry, Donnelly et al. in Neuropsychologia, 50, 3410-3418, 2012) only differed from typical participants at the P3b component. Findings suggest the P3b links most directly to the experience of the illusion. Overall, the study showed evidence consistent with both perceptual and decisional sources and the need to consider both in relation to configurality.
https://eprints.bournemouth.ac.uk/31896/
Source: PubMed
The Role of Configurality in the Thatcher Illusion: An ERP Study
Authors: Mestry, N., Menneer, T., Wenger, M.J., Benikos, N., McCarthy, R.A. and Donnelly, N.
Journal: PSYCHONOMIC BULLETIN & REVIEW
Volume: 22
Issue: 2
Pages: 445-452
eISSN: 1531-5320
ISSN: 1069-9384
DOI: 10.3758/s13423-014-0705-3
https://eprints.bournemouth.ac.uk/31896/
Source: Web of Science (Lite)
The role of configurality in the Thatcher illusion: an ERP study.
Authors: Mestry, N., Menneer, T., Wenger, M.J., Benikos, N., McCarthy, R.A. and Donnelly, N.
Journal: Psychonomic bulletin & review
Volume: 22
Issue: 2
Pages: 445-452
eISSN: 1531-5320
ISSN: 1069-9384
DOI: 10.3758/s13423-014-0705-3
Abstract:The Thatcher illusion (Thompson in Perception, 9, 483-484, 1980) is often explained as resulting from recognising a distortion of configural information when 'Thatcherised' faces are upright but not when inverted. However, recent behavioural studies suggest that there is an absence of perceptual configurality in upright Thatcherised faces (Donnelly et al. in Attention, Perception & Psychophysics, 74, 1475-1487, 2012) and both perceptual and decisional sources of configurality in behavioural tasks with Thatcherised stimuli (Mestry, Menneer et al. in Frontiers in Psychology, 3, 456, 2012). To examine sources linked to the behavioural experience of the illusion, we studied inversion and Thatcherisation of faces (comparing across conditions in which no features, the eyes, the mouth, or both features were Thatcherised) on a set of event-related potential (ERP) components. Effects of inversion were found at the N170, P2 and P3b. Effects of eye condition were restricted to the N170 generated in the right hemisphere. Critically, an interaction of orientation and eye Thatcherisation was found for the P3b amplitude. Results from an individual with acquired prosopagnosia who can discriminate Thatcherised from typical faces but cannot categorise them or perceive the illusion (Mestry, Donnelly et al. in Neuropsychologia, 50, 3410-3418, 2012) only differed from typical participants at the P3b component. Findings suggest the P3b links most directly to the experience of the illusion. Overall, the study showed evidence consistent with both perceptual and decisional sources and the need to consider both in relation to configurality.
https://eprints.bournemouth.ac.uk/31896/
Source: Europe PubMed Central
The role of configurality in the Thatcher illusion: an ERP study.
Authors: Mestry, N., Menneer, T., Wenger, M.J., Benikos, N., McCarthy, R.A. and Donnelly, N.
Journal: Psychonomic Bulletin & Review
Volume: 22
Issue: 2
Pages: 445-452
ISSN: 1069-9384
Abstract:The Thatcher illusion (Thompson in Perception, 9, 483-484, 1980) is often explained as resulting from recognising a distortion of configural information when 'Thatcherised' faces are upright but not when inverted. However, recent behavioural studies suggest that there is an absence of perceptual configurality in upright Thatcherised faces (Donnelly et al. in Attention, Perception & Psychophysics, 74, 1475-1487, 2012) and both perceptual and decisional sources of configurality in behavioural tasks with Thatcherised stimuli (Mestry, Menneer et al. in Frontiers in Psychology, 3, 456, 2012). To examine sources linked to the behavioural experience of the illusion, we studied inversion and Thatcherisation of faces (comparing across conditions in which no features, the eyes, the mouth, or both features were Thatcherised) on a set of event-related potential (ERP) components. Effects of inversion were found at the N170, P2 and P3b. Effects of eye condition were restricted to the N170 generated in the right hemisphere. Critically, an interaction of orientation and eye Thatcherisation was found for the P3b amplitude. Results from an individual with acquired prosopagnosia who can discriminate Thatcherised from typical faces but cannot categorise them or perceive the illusion (Mestry, Donnelly et al. in Neuropsychologia, 50, 3410-3418, 2012) only differed from typical participants at the P3b component. Findings suggest the P3b links most directly to the experience of the illusion. Overall, the study showed evidence consistent with both perceptual and decisional sources and the need to consider both in relation to configurality.
https://eprints.bournemouth.ac.uk/31896/
Source: BURO EPrints