Social perception in synaesthesia for colour

McErlean, Agnieszka B. Janik; Susilo, Tirta; Rezlescu, Constantin; Bray, Amy; Banissy, Michael J.

doi:10.1080/02643294.2016.1261820

Cited by 11 publications

(20 citation statements)

References 44 publications

(66 reference statements)

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“…This approach is consistent with prior work using CFPT measures (e.g. Janik et al, 2015;Janik-McErlean et al, 2016;Romanska et al, 2015;Rezlescu et al, 2014). All participants completed the tasks before stimulation to measure their baseline performance and after stimulation to measure post-stimulation performance change.…”

Section: Participantssupporting

confidence: 57%

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Enhancing anger perception in older adults by stimulating inferior frontal cortex with high frequency transcranial random noise stimulation

Yang

Banissy

2017

Neuropsychologia

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Extensive behavioural evidence has shown that older people have declined ability in facial emotion perception. Recent work has begun to examine the neural mechanism that contribute to this, and potential tools to support emotion perception during aging. The aim of this study was to investigate whether high frequency tRNS applied to the inferior frontal cortex would enhance facial expression perception in older adults. Healthy aged adults (60+ years) were randomly assigned to receive active high-frequency or sham tRNS targeted at bilateral inferior frontal cortices. Each group completed tests of facial identity perception, facial happiness perception and facial anger perception. These tasks were completed before and after stimulation. The results showed that, compared to the sham group, the active tRNS group showed greater gains in performance after stimulation in anger perception (relative to performance before stimulation). The same tRNS stimulation did not significantly change performance on the two other face perception tasks assessing facial identity and facial happiness perception. Examination of how inter-individual variability related to changes in anger perception following tRNS indicated that the degree of performance change in anger perception following active tRNS to inferior frontal cortex was predicted by baseline ability and gender of older adult participants. The findings suggest that high frequency tRNS may be a potential tool to aid anger perception in typical aging, but flag that performance variability and gender may interact with stimulation leading to different outcomes.

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Section: Participantssupporting

confidence: 57%

“…Performance was measured using percentage of correct responses. Chance performance is 36% (Romanska et al, 2015;Janik et al, 2015;Janik-McErlean et al, 2016).…”

Section: Cfpt-identitymentioning

confidence: 99%

Enhancing anger perception in older adults by stimulating inferior frontal cortex with high frequency transcranial random noise stimulation

Yang

Banissy

2017

Neuropsychologia

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“…org). Three different versions were used: one relating to facial identity (adapted from Duchaine, Germine, & Nakayama, 2007); one relating to facial expressions of anger (Janik, Rezlescu, & Banissy, 2015); and one relating to facial expressions of happiness (Janik-McErlean, Susilo, Rezlescu, Bray, & Banissy, 2016). The versions were presented in a random order.…”

Section: Methodsmentioning

confidence: 99%

“…There was no target face. The morphs ranged from 40%-0% in steps of 8% for anger and 15%-0% in steps of 3% for happiness (lower morph levels are used for happiness to ensure comparability in task difficulty; Janik-McErlean et al, 2016). There were 10 happy trials and 10 anger trials with each trial taking up to 1 minute.…”

Section: Methodsmentioning

confidence: 99%

The relationship between mirror-touch synaesthesia and empathy: New evidence and a new screening tool

Ward

Schnakenberg

Banissy

2018

Cognitive Neuropsychology

109

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People with mirror-touch synaesthesia (MTS) report tactile sensations on their own body when seeing another person being touched. Although this has been associated with heightened empathy and emotion perception, this finding has been disputed. Here, we conduct two experiments to explore this relationship further. In Experiment 1, we develop a new screening measure for MTS. We show that MTS is related to vicarious experiences more generally, but is not a simple exaggerated version of normality. For example, people with MTS report videos of scratching as "touch" rather than "itchiness" and have localized sensations when watching others in pain. In Experiment 2, we show that MTS is related to increased emotional empathy to others and better ability to read facial expressions of emotion, but other measures of empathy are normal. In terms of theoretical models, we propose that this is more consistent with a qualitative difference in the ability to selectively inhibit the other and attend to the self.

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“…Although most work has focussed on the synaesthetic experiences themselves (Van Leeuwen, 2013;Ward, 2013), recent studies have addressed how synaesthesia is related to aspects of general perceptual functioning. For instance, some studies investigated early visual perception (i.e., colour and motion perception; Barnett et al, 2008;Banissy et al, 2013), face perception (McErlean et al, 2016) and multisensory processing (e.g., Brang et al, 2012;Neufeld et al, 2012) in synaesthetes.…”

Section: Introductionmentioning

confidence: 99%

The Relation Between the Degree of Synaesthesia, Autistic Traits, and Local/Global Visual Perception

Burghoorn¹,

Dingemanse²,

Lier³

et al. 2018

Preprint

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In individuals with synaesthesia specific sensory stimulation leads to unusual concurrent perceptions in the same or a different modality. Recent studies have demonstrated a high co-occurrence between synaesthesia and autism spectrum disorder (ASD), a condition also characterized by altered perception. A potentially shared characteristic of synaesthesia and ASD is a bias towards local (detail-focussed) perception. We investigated whether a bias towards local perception is indeed shared between synaesthesia and ASD. In a neurotypical population, we studied the relation between the degree of autistic traits (measured by the AQ) and the degree of grapheme-colour synaesthesia (measured by a consistency task), as well as whether both are related to a local bias in tasks assessing local/global visual perception. A positive correlation between total AQ scores and the degree of synaesthesia was found. Our study extends previous studies that found a high ASD-synaesthesia co-occurrence in clinical populations. Consistent with the hypothesized local perceptual bias in ASD, scores on the AQ-attention to detail subscale were related to increased performance on an Embedded Figures Task (EFT), and we found evidence for a relation to reduced susceptibility to visual illusions. We found no relation between autistic traits and local visual perception in a motion coherence task (MCT). Also, no relation between synaesthesia and local visual perception was found, although a reduced susceptibility to visual illusions resembled the results obtained for AQ-atttention to detail subscale. A suggested explanation for the absence of a relationship between the degree of synaesthesia and a local bias is that a possible local bias might be more pronounced in supra-threshold synaesthetes (compared to neurotypicals).

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Social perception in synaesthesia for colour

Cited by 11 publications

References 44 publications

Enhancing anger perception in older adults by stimulating inferior frontal cortex with high frequency transcranial random noise stimulation

Enhancing anger perception in older adults by stimulating inferior frontal cortex with high frequency transcranial random noise stimulation

The relationship between mirror-touch synaesthesia and empathy: New evidence and a new screening tool

The Relation Between the Degree of Synaesthesia, Autistic Traits, and Local/Global Visual Perception

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