Illusory Object Motion in the Centre of a Radial Pattern: The Pursuit-Pursuing Illusion

Ito, Hiroyuki

doi:10.1068/i0430

Cited by 7 publications

(17 citation statements)

References 92 publications

(161 reference statements)

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“…However, illusion classification did not reach a general consensus yet (see Hamburger, 2016 , for a recent review). Measuring a visual illusion, even if it sounds counterintuitive, can be done in a very accurate way in both human and non-human species (e.g., Macknik and Livingstone, 1998 ; Conway et al, 2005 ; Gori et al, 2006 , 2008a , 2010a , b , 2014 ; Fantoni and Pinna, 2008 ; Giora and Gori, 2010 ; Gori and Spillmann, 2010 ; Spillmann et al, 2010 ; Hamburger, 2012 ; Ito, 2012 ; Otero-Millan et al, 2012 ; Shi et al, 2013 ; Agrillo et al, 2015 ). Following the everyman’s perspective, visual illusions could not be considered a good tool for investigating perceptual differences in groups because they are “subjective”.…”

Section: Visual Illusion As a Tool To Investigate Brain Processingmentioning

confidence: 99%

Visual Illusions: An Interesting Tool to Investigate Developmental Dyslexia and Autism Spectrum Disorder

Gori

Molteni

Facoetti

2016

Front. Hum. Neurosci.

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A visual illusion refers to a percept that is different in some aspect from the physical stimulus. Illusions are a powerful non-invasive tool for understanding the neurobiology of vision, telling us, indirectly, how the brain processes visual stimuli. There are some neurodevelopmental disorders characterized by visual deficits. Surprisingly, just a few studies investigated illusory perception in clinical populations. Our aim is to review the literature supporting a possible role for visual illusions in helping us understand the visual deficits in developmental dyslexia and autism spectrum disorder. Future studies could develop new tools – based on visual illusions – to identify an early risk for neurodevelopmental disorders.

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Section: Visual Illusion As a Tool To Investigate Brain Processingmentioning

confidence: 99%

Visual Illusions: An Interesting Tool to Investigate Developmental Dyslexia and Autism Spectrum Disorder

Gori

Molteni

Facoetti

2016

Front. Hum. Neurosci.

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“…The FD illusion is a visual illusion that was first described by Kelly (1966) . Measuring a visual illusion, even if it sounds counterintuitive, can be done in a very accurate way (e.g., Gori et al, 2006 , 2008 , 2011 ; Yazdanbakhsh and Gori, 2008 ; Giora and Gori, 2010 ; Gori and Spillmann, 2010 ; Ito, 2012 ). The FD illusion appears to be dependent on the spatial and temporal frequency of a flickering grating.…”

Section: Introductionmentioning

confidence: 99%

Magnocellular-dorsal pathway and sub-lexical route in developmental dyslexia

Gori

Cecchini

Bigoni

et al. 2014

Front. Hum. Neurosci.

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Although developmental dyslexia (DD) is frequently associate with a phonological deficit, the underlying neurobiological cause remains undetermined. Recently, a new model, called "temporal sampling framework" (TSF), provided an innovative prospect in the DD study. TSF suggests that deficits in syllabic perception at a specific temporal frequencies are the critical basis for the poor reading performance in DD. This approach was presented as a possible neurobiological substrate of the phonological deficit of DD but the TSF can also easily be applied to the visual modality deficits. The deficit in the magnocellular-dorsal (M-D) pathway -often found in individuals with DD -fits well with a temporal oscillatory deficit specifically related to this visual pathway. This study investigated the visual M-D and parvocellular-ventral (P-V) pathways in dyslexic and in chronological age and IQ-matched normally reading children by measuring temporal (frequency doubling illusion) and static stimuli sensitivity, respectively. A specific deficit in M-D temporal oscillation was found. Importantly, the M-D deficit was selectively shown in poor phonological decoders. M-D deficit appears to be frequent because 75% of poor pseudo-word readers were at least 1 SD below the mean of the controls. Finally, a replication study by using a new group of poor phonological decoders and reading level controls suggested a crucial role of M-D deficit in DD. These results showed that a M-D deficit might impair the sub-lexical mechanisms that are critical for reading development. The possible link between these findings and TSF is discussed.

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“…It was also suggested that very small eye movements called microsaccades have an important role to play in the perception of shimmering [ 18 ]. Empirical evidence has been found to support this claim in the case of the Enigma illusion [ 19 ], as well as other illusions of motion based on geometric patterns [ 20 ][ 21 ][ 22 ].…”

Section: Introductionmentioning

confidence: 95%

VEP Responses to Op-Art Stimuli

2015

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Several types of striped patterns have been reported to cause adverse sensations described as visual discomfort. Previous research using op-art-based stimuli has demonstrated that spurious eye movement signals can cause the experience of illusory motion, or shimmering effects, which might be perceived as uncomfortable. Whilst the shimmering effects are one cause of discomfort, another possible contributor to discomfort is excessive neural responses: As striped patterns do not have the statistical redundancy typical of natural images, they are perhaps unable to be encoded efficiently. If this is the case, then this should be seen in the amplitude of the EEG response. This study found that stimuli that were judged to be most comfortable were also those with the lowest EEG amplitude. This provides some support for the idea that excessive neural responses might also contribute to discomfort judgements in normal populations, in stimuli controlled for perceived contrast.

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Illusory Object Motion in the Centre of a Radial Pattern: The Pursuit-Pursuing Illusion

Cited by 7 publications

References 92 publications

Visual Illusions: An Interesting Tool to Investigate Developmental Dyslexia and Autism Spectrum Disorder

Visual Illusions: An Interesting Tool to Investigate Developmental Dyslexia and Autism Spectrum Disorder

Magnocellular-dorsal pathway and sub-lexical route in developmental dyslexia

VEP Responses to Op-Art Stimuli

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