Brief Report: Coherent Motion Processing in Autism: Is Dot Lifetime an Important Parameter?

Manning, Catherine; Charman, Tony; Pellicano, Liz

doi:10.1007/s10803-015-2365-1

Cited by 11 publications

(26 citation statements)

References 38 publications

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“…It is possible that the unlimited dot lifetime condition was too easy compared to the limited dot lifetime condition, resulting in all participants scoring significantly better and not allowing for a differentiation to be made based on AQ score. Similar results were obtained by Manning et al (2015), who used dot lifetimes of 83 versus 1000 ms and found no moderating effect of dot lifetime. Jackson et al (2013) used dot lifetimes of 80 and 300 ms and did find an AQ by dot lifetime interaction, supporting this explanation.…”

Section: The Degree Of Autistic Traits and Visual Perceptionsupporting

confidence: 86%

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

Burghoorn

Dingemanse

Lier

et al. 2019

J Autism Dev Disord

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Synaesthesia is highly prevalent in autism spectrum disorder. We assessed the relation between the degree of autistic traits (Autism Spectrum Quotient, AQ) and the degree of synaesthesia in a neurotypical population, and hypothesized both are related to a local bias in visual perception. A positive correlation between total AQ scores and the degree of synaesthesia was found, extending previous studies in clinical populations. Consistent with our hypothesis, AQ-attention to detail scores were related to increased performance on an Embedded Figures Task and reduced susceptibility to visual illusions. We found no relation between autistic traits and performance on a motion coherence task, and no relation between synaesthesia and local visual perception. Possibly, this relation is reserved for supra-threshold synaesthetes.

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Section: The Degree Of Autistic Traits and Visual Perceptionsupporting

confidence: 86%

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

Burghoorn

Dingemanse

Lier

et al. 2019

J Autism Dev Disord

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“…Similar results were obtained by Manning et al (2015), who used dot lifetimes of 83 versus 1000 ms and found no moderating effect of dot lifetime. Jackson et al (2013) used dot lifetimes of 80 and 300 ms and did find an AQ by dot lifetime interaction, supporting this explanation.…”

Section: The Degree Of Autistic Traits and Visual Perceptionsupporting

confidence: 86%

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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“…However, the other part of this literature, in which unlimited lifetime of the moving dots is employed, demonstrate intact performance in RDKs in ASD (e.g., Davis et al, 2006 ; Yamasaki et al, 2011 ; Chen et al, 2012 ; for the short display duration of 220 ms). It has been recently shown that typically developed individuals and those diagnosed with ASD are equally affected by the dot lifetime (Manning et al, 2015 ).…”

Section: Global Motion Processingmentioning

confidence: 99%

Motion perception: a review of developmental changes and the role of early visual experience

Hadad

Schwartz

Maurer

et al. 2015

Front. Integr. Neurosci.

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Significant controversies have arisen over the developmental trajectory for the perception of global motion. Studies diverge on the age at which it becomes adult-like, with estimates ranging from as young as 3 years to as old as 16. In this article, we review these apparently conflicting results and suggest a potentially unifying hypothesis that may also account for the contradictory literature in neurodevelopmental disorders, such as Autism Spectrum Disorder (ASD). We also discuss the extent to which patterned visual input during this period is necessary for the later development of motion perception. We conclude by addressing recent studies directly comparing different types of motion integration, both in typical and atypical development, and suggest areas ripe for future research.

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Brief Report: Coherent Motion Processing in Autism: Is Dot Lifetime an Important Parameter?

Cited by 11 publications

References 38 publications

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

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

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

Motion perception: a review of developmental changes and the role of early visual experience

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