Perceptual Development: Vision

Gwiazda, Jane; Birch, Eileen E.

doi:10.1002/9780470753477.ch20

Cited by 3 publications

(2 citation statements)

References 115 publications

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“…For example, the maturation of distinct perceptual modalities in mammals follows a fixed developmental pattern: first olfaction, then tactile, taste, auditory, and visual perception (Gottlieb, 1971). Thus, while tactile perception is virtually mature at birth and, if anything, sensitivity to gentle tactile stimuli reduces with growth (Werner & Bernstein, 2001), auditory and visual acuity only become comparable to that of adults from six months onwards (Gwiazda & Birch, 2001;Werner & Bernstein, 2001). This pattern is adaptive and consistent with the changing perceptual needs of developing infants, who naturally rely on proximal senses at an early stage, when only an impression of the immediate vicinity is necessary for existence and for the stimulation of further perceptual, cognitive, and social development (Hainline, 1998).…”

Section: Discussionmentioning

confidence: 99%

Discrimination in Autism Within Different Sensory Modalities

O’Riordan

Passetti

2006

J Autism Dev Disord

174

110

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Recent studies have suggested that unusual visual processing in autism might stem from enhanced visual discrimination. Although there are also many anecdotal reports of auditory and tactile processing disturbances in autism these have received comparatively little attention. It is possible that the enhanced discrimination ability in vision in autism might extend to other modalities and further that they may underlie many reports of unusual touch and audition. The present study investigated the performance of children with and without autism on auditory and tactile discrimination tasks and revealed superior auditory but comparable tactile discrimination in autism relative to controls. These results extend previous findings of perceptual discrimination in autism and may be relevant for a neuro-developmental hypothesis of the disorder.

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Section: Discussionmentioning

confidence: 99%

Discrimination in Autism Within Different Sensory Modalities

O’Riordan

Passetti

2006

J Autism Dev Disord

174

110

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“…It is well known that a remarkable amount of visual development occurs during the first few years of life (for review, see Gwiazda & Birch, 20011). For instance, there is rapid development of visual acuity during the first six months of life2-6 and stereopsis is manifest at an age as early as 4 months 7-9.…”

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confidence: 99%

Course of Development of Global Hyperacuity Over Lifespan

Wang

Morale²,

Cousins

et al. 2009

Optometry and Vision Science

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Purpose Global visual integration is fundamental to shape and face recognition. While the maturation of local visual function, such as resolution acuity, has been well documented, less is known about the changes in global visual function during development and with aging. Methods Two hundred thirty-six normal subjects, ranging in age from 0.25 to 78 years old, participated the study. Global hyperacuity (detection threshold for radial deformation) was obtained from 300 eyes using either a computerized testing or a chart testing protocol and spatial forced choice (preferential-looking for < 2.6 yr old, pointing for young children, or verbal response for older children and adults). Resolution acuity was also measured. The developmental courses for global hyperacuity and resolution acuity were fit to a 3-segment curve to capture the initial rapid development, followed by a period of stable, adult-level visual function and, finally, the decline in visual function with aging. Results Curve fitting revealed that global hyperacuity was 0.25 logMAR at 0.25 yrs of age, and improved rapidly to -0.56 logMAR at 5.4 yrs of age but did not reach the mean adult level (-0.86 logMAR) until 21 yrs of age. Global hyperacuity started to deteriorate from 55 yrs of age at the rate of 0.035 logMAR per decade. In comparison, resolution acuity reached 0.0 logMAR at 5 yrs of age, and reached the adult level of -0.1 logMAR at 11 yrs of age. Resolution acuity also started to decrease from 55 yrs of age at the rate of 0.058 logMAR per decade. Conclusions Similar to vernier alignment acuity, global hyperacuity improves rapidly during infancy and early childhood but takes longer to reach the adult level than resolution acuity. The delayed maturation of global hyperacuity suggests that further development to refine neural circuitry at the cortical level takes place in the second decade of life.

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Developmental Science

Bornstein¹,

Lamb

2010

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Perceptual Development: Vision

Cited by 3 publications

References 115 publications

Discrimination in Autism Within Different Sensory Modalities

Discrimination in Autism Within Different Sensory Modalities

Course of Development of Global Hyperacuity Over Lifespan

Developmental Science

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