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postgraduate thesis: Eye movements in face recognition in children with autism spectrum disorder
Title | Eye movements in face recognition in children with autism spectrum disorder |
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Authors | |
Issue Date | 2016 |
Publisher | The University of Hong Kong (Pokfulam, Hong Kong) |
Citation | Chan, K. [陳嘉穎]. (2016). Eye movements in face recognition in children with autism spectrum disorder. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. |
Abstract | Background: Past research indicated individuals with Autism Spectrum Disorder (ASD) demonstrated marked abnormalities in face processing. We examined eye movements in face perception in children with ASD and explored correlations between face recognition performance, planning and global-local perception abilities.Methods:16 ASD and 16 typically developing (TD) primary school children matched with age, gender and non-verbal intelligence underwent two neuropsychological tests that measured planning (as a measure of EF) and global-local perception abilities (as a measure of central coherence) respectively. They also underwent a face recognition task with their eye movements being recorded. Individuals’ eye movements were modeled by Hidden Markov Model (HMM) and categorized into different processing strategy groups by Variational hierarchical EM algorithm(VHEM).Results: Children with ASD processed faces similarly holistic like TD controls and displayed no noticeable difference in planning. However, they were weaker in both global and local processing and showed no local-oriented processing bias. Conclusions: Disparity of performance patterns suggested holistic and global processing could be two separate processes in visual perception. Atypical face perception in ASD could be due to a disinclination to an adaptive processing mode rather than a disability.
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Degree | Master of Social Sciences |
Subject | Eye - Movements Face perception Children with autism spectrum disorders - Psychology |
Dept/Program | Educational Psychology |
Persistent Identifier | http://hdl.handle.net/10722/252016 |
DC Field | Value | Language |
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dc.contributor.author | Chan, Ka-wing | - |
dc.contributor.author | 陳嘉穎 | - |
dc.date.accessioned | 2018-04-09T14:36:49Z | - |
dc.date.available | 2018-04-09T14:36:49Z | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | Chan, K. [陳嘉穎]. (2016). Eye movements in face recognition in children with autism spectrum disorder. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. | - |
dc.identifier.uri | http://hdl.handle.net/10722/252016 | - |
dc.description.abstract | Background: Past research indicated individuals with Autism Spectrum Disorder (ASD) demonstrated marked abnormalities in face processing. We examined eye movements in face perception in children with ASD and explored correlations between face recognition performance, planning and global-local perception abilities.Methods:16 ASD and 16 typically developing (TD) primary school children matched with age, gender and non-verbal intelligence underwent two neuropsychological tests that measured planning (as a measure of EF) and global-local perception abilities (as a measure of central coherence) respectively. They also underwent a face recognition task with their eye movements being recorded. Individuals’ eye movements were modeled by Hidden Markov Model (HMM) and categorized into different processing strategy groups by Variational hierarchical EM algorithm(VHEM).Results: Children with ASD processed faces similarly holistic like TD controls and displayed no noticeable difference in planning. However, they were weaker in both global and local processing and showed no local-oriented processing bias. Conclusions: Disparity of performance patterns suggested holistic and global processing could be two separate processes in visual perception. Atypical face perception in ASD could be due to a disinclination to an adaptive processing mode rather than a disability. | - |
dc.language | eng | - |
dc.publisher | The University of Hong Kong (Pokfulam, Hong Kong) | - |
dc.relation.ispartof | HKU Theses Online (HKUTO) | - |
dc.rights | The author retains all proprietary rights, (such as patent rights) and the right to use in future works. | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject.lcsh | Eye - Movements | - |
dc.subject.lcsh | Face perception | - |
dc.subject.lcsh | Children with autism spectrum disorders - Psychology | - |
dc.title | Eye movements in face recognition in children with autism spectrum disorder | - |
dc.type | PG_Thesis | - |
dc.description.thesisname | Master of Social Sciences | - |
dc.description.thesislevel | Master | - |
dc.description.thesisdiscipline | Educational Psychology | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.5353/th_991043983786603414 | - |
dc.date.hkucongregation | 2016 | - |
dc.identifier.mmsid | 991043983786603414 | - |