Gamma activation in young people with autism spectrum disorders and typically-developing controls when viewing emotions on faces.
<h4>Background</h4>Behavioural studies have highlighted irregularities in recognition of facial affect in children and young people with autism spectrum disorders (ASDs). Recent findings from studies utilising electroencephalography (EEG) and magnetoencephalography (MEG) have identified...
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2012
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oai:doaj.org-article:9394def3cf57422e995963132bcf7d6b2021-11-18T07:10:19ZGamma activation in young people with autism spectrum disorders and typically-developing controls when viewing emotions on faces.1932-620310.1371/journal.pone.0041326https://doaj.org/article/9394def3cf57422e995963132bcf7d6b2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22859975/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Behavioural studies have highlighted irregularities in recognition of facial affect in children and young people with autism spectrum disorders (ASDs). Recent findings from studies utilising electroencephalography (EEG) and magnetoencephalography (MEG) have identified abnormal activation and irregular maintenance of gamma (>30 Hz) range oscillations when ASD individuals attempt basic visual and auditory tasks.<h4>Methodology/principal findings</h4>The pilot study reported here is the first study to use spatial filtering techniques in MEG to explore face processing in children with ASD. We set out to examine theoretical suggestions that gamma activation underlying face processing may be different in a group of children and young people with ASD (n = 13) compared to typically developing (TD) age, gender and IQ matched controls. Beamforming and virtual electrode techniques were used to assess spatially localised induced and evoked activity. While lower-band (3-30 Hz) responses to faces were similar between groups, the ASD gamma response in occipital areas was observed to be largely absent when viewing emotions on faces. Virtual electrode analysis indicated the presence of intact evoked responses but abnormal induced activity in ASD participants.<h4>Conclusions/significance</h4>These findings lend weight to previous suggestions that specific components of the early visual response to emotional faces is abnormal in ASD. Elucidation of the nature and specificity of these findings is worthy of further research.Barry WrightBen Alderson-DayGarreth PrendergastSophie BennettJo JordanClare WhittonAndre GouwsNick JonesRam AtturHeather TomlinsonGary GreenPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 7, p e41326 (2012) |
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Medicine R Science Q |
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Medicine R Science Q Barry Wright Ben Alderson-Day Garreth Prendergast Sophie Bennett Jo Jordan Clare Whitton Andre Gouws Nick Jones Ram Attur Heather Tomlinson Gary Green Gamma activation in young people with autism spectrum disorders and typically-developing controls when viewing emotions on faces. |
| description |
<h4>Background</h4>Behavioural studies have highlighted irregularities in recognition of facial affect in children and young people with autism spectrum disorders (ASDs). Recent findings from studies utilising electroencephalography (EEG) and magnetoencephalography (MEG) have identified abnormal activation and irregular maintenance of gamma (>30 Hz) range oscillations when ASD individuals attempt basic visual and auditory tasks.<h4>Methodology/principal findings</h4>The pilot study reported here is the first study to use spatial filtering techniques in MEG to explore face processing in children with ASD. We set out to examine theoretical suggestions that gamma activation underlying face processing may be different in a group of children and young people with ASD (n = 13) compared to typically developing (TD) age, gender and IQ matched controls. Beamforming and virtual electrode techniques were used to assess spatially localised induced and evoked activity. While lower-band (3-30 Hz) responses to faces were similar between groups, the ASD gamma response in occipital areas was observed to be largely absent when viewing emotions on faces. Virtual electrode analysis indicated the presence of intact evoked responses but abnormal induced activity in ASD participants.<h4>Conclusions/significance</h4>These findings lend weight to previous suggestions that specific components of the early visual response to emotional faces is abnormal in ASD. Elucidation of the nature and specificity of these findings is worthy of further research. |
| format |
article |
| author |
Barry Wright Ben Alderson-Day Garreth Prendergast Sophie Bennett Jo Jordan Clare Whitton Andre Gouws Nick Jones Ram Attur Heather Tomlinson Gary Green |
| author_facet |
Barry Wright Ben Alderson-Day Garreth Prendergast Sophie Bennett Jo Jordan Clare Whitton Andre Gouws Nick Jones Ram Attur Heather Tomlinson Gary Green |
| author_sort |
Barry Wright |
| title |
Gamma activation in young people with autism spectrum disorders and typically-developing controls when viewing emotions on faces. |
| title_short |
Gamma activation in young people with autism spectrum disorders and typically-developing controls when viewing emotions on faces. |
| title_full |
Gamma activation in young people with autism spectrum disorders and typically-developing controls when viewing emotions on faces. |
| title_fullStr |
Gamma activation in young people with autism spectrum disorders and typically-developing controls when viewing emotions on faces. |
| title_full_unstemmed |
Gamma activation in young people with autism spectrum disorders and typically-developing controls when viewing emotions on faces. |
| title_sort |
gamma activation in young people with autism spectrum disorders and typically-developing controls when viewing emotions on faces. |
| publisher |
Public Library of Science (PLoS) |
| publishDate |
2012 |
| url |
https://doaj.org/article/9394def3cf57422e995963132bcf7d6b |
| work_keys_str_mv |
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