Eye Movement and Visual Search: Are There Elementary Abnormalities in Autism?

Brenner, Laurie A.; Turner, Katherine C; Müller, Ralph‐Axel

doi:10.1007/s10803-006-0277-9

Cited by 60 publications

(65 citation statements)

References 184 publications

(225 reference statements)

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“…Dakin and Frith (2005) have argued that visual attention provides a better explanation of the findings by Bertone et al (2003), since the visual perception of second-order motion shows a greater dependence on attentional processes than does the perception of first-order motion (Cavanagh, 1992). Indeed, observers with ASD distribute their attentional resources differently (Burack, 1994;O'Riordan, 2004;Plaisted et al, 1998b) and exhibit differences in oculomotor function (Brenner, Turner, & Müller, 2007) relative to typically developing observers. Even in typical observers, attention modulates the perception of coherent motion in random dot patterns (Liu, Fuller, & Carrasco, 2006).…”

Section: Interpreting Apparently Divergent Resultsmentioning

confidence: 99%

The visual perception of motion by observers with autism spectrum disorders: A review and synthesis

Kaiser

Shiffrar

2009

Psychonomic Bulletin & Review

111

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Section: Interpreting Apparently Divergent Resultsmentioning

confidence: 99%

The visual perception of motion by observers with autism spectrum disorders: A review and synthesis

Kaiser

Shiffrar

2009

Psychonomic Bulletin & Review

111

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“…Individuals with ASD have also been found superior on a rather complex visual search task, the Embedded Figures Test (Jolliffe and Baron-Cohen 1997), and on the visuoconstructive Block Design (Caron et al 2006). These findings are intriguing, given evidence for atypical spatial attention and oculomotor functions in ASD (as reviewed in Brenner et al, 2007).…”

Section: Behaviormentioning

confidence: 97%

The study of autism as a distributed disorder

Müller

2007

Ment. Retard. Dev. Disabil. Res. Rev.

Self Cite

175

135

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Past autism research has often been dedicated to tracing the causes of the disorder to a localized neurological abnormality, a single functional network, or a single cognitive-behavioral domain. In this review, I argue that autism is a 'distributed disorder' on various levels of study (genetic, neuroanatomical, neurofunctional, behavioral). 'Localizing' models are therefore not promising. The large array of potential genetic risk factors suggests that multiple (or all) emerging functional brain networks are affected during early development. This is supported by widespread growth abnormalities throughout the brain. Interactions during development between affected functional networks and atypical experiential effects (associated with atypical behavior) in children with autism further complicate the neurological bases of the disorder, resulting in an 'exponentially distributed' profile. Promising approaches to a better characterization of neural endophenotypes in autism are provided by techniques investigating white matter and connectivity, such as MR spectroscopy, diffusion tensor imaging (DTI), and functional connectivity MRI. According to a recent hypothesis, the autistic brain is generally characterized by 'underconnectivity'. However, not all findings are consistent with this view. The concepts and methodology of functional connectivity need to be refined and results need to be corroborated by anatomical studies (such as DTI tractography) before definitive conclusions can be drawn.

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“…Even though few studies exist, smooth pursuit eye movement in ASD has not yet been well documented in research literature [10], [11]. One significant paper on smooth pursuit was done by Takarae et al [12], which compared the pursuit eye movement of 60 individuals with ASD and 94 age, IQ, and gender-matched controls.…”

Section: A Smooth Pursuitmentioning

confidence: 99%

Visual Behavior Analysis Between Neuro-typical Children and Children with Autism Spectrum Disorder

Ahad¹,

Syeda²,

Zafar³

et al. 2018

Preprint

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Abstract-Autism Spectrum Disorder (ASD) is a complex and diverse neurodevelopmental condition. Little research has been done globally which is not commensurate with the multifariousness of ASD and in developing countries like Bangladesh, such fields of research are almost void. This research investigates the visual behavior of 24 neuro-typical children and 24 children with ASD in smooth pursuit and saccadic eye movement. The smooth pursuit experiment contained animations of objects moving horizontally across the screen and the saccadic tests contained animations of predictable and non-predictable saccades. To attain the gaze data, Tobii EyeX Controller was used and the data was processed and analyzed in MATLAB. Significant differences in results were found in the two areas of investigation. Children with ASD were found to have higher saccadic latency, lower accuracy in smooth pursuit and an overall poorer performance in these basic visual tests compared to their control counterparts. Fundamental eye movements are connected to the sensory-motor processing of the brain and such behavior might be the product of flawed cerebellum and motor functions of the brain. To fully understand this, further eye-tracking, neuroimaging, and behavioral studies should be done in integration.

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Eye Movement and Visual Search: Are There Elementary Abnormalities in Autism?

Cited by 60 publications

References 184 publications

The visual perception of motion by observers with autism spectrum disorders: A review and synthesis

The visual perception of motion by observers with autism spectrum disorders: A review and synthesis

The study of autism as a distributed disorder

Visual Behavior Analysis Between Neuro-typical Children and Children with Autism Spectrum Disorder

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