Perceptual training yields rapid improvements in visually impaired youth

Nyquist, Jeffrey B.; Lappin, Joseph S.; Tadin, Duje

doi:10.1167/8.6.1131

Cited by 3 publications

(12 citation statements)

References 49 publications

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“…Explanations for these interactive effects of speed, eccentricity, and CN on motion perception remain to be discovered. Other recent studies have also found reduced sensitivity to peripheral stimuli in some persons with low vision (Nyquist, 2007).…”

Section: Resultsmentioning

confidence: 69%

“…Perhaps the moving visual fields of these observers are perceptually less coherent than those of typically sighted observers. Perhaps these differences in motion threshold are pertinent to suggestions that children with low vision are often less attentive than typically sighted children to the peripheral visual fields (Nyquist, 2007).…”

Section: Motion Speed Affects Observers With Nystagmusmentioning

confidence: 99%

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Spatial and temporal limits of motion perception across variations in speed, eccentricity, and low vision

Lappin¹,

Tadin²,

Nyquist³

et al. 2009

Journal of Vision

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We evaluated spatial displacement and temporal duration thresholds for discriminating the motion direction of gratings for a broad range of speeds (0.06 degrees/s to 30 degrees/s) in fovea and at +/-30 degrees eccentricity. In general, increased speed yielded lower duration thresholds but higher displacement thresholds. In most conditions, these effects of speed were comparable in fovea and periphery, yielding relatively similar thresholds not correlated with decreased peripheral acuity. The noteworthy exceptions were interactive effects at slow speeds: (1) Displacement thresholds for peripheral motion were affected by acuity limits for speeds below 0.5 degrees/s. (2) Low-vision observers with congenital nystagmus had elevated thresholds for peripheral motion and slow foveal motion but resembled typically sighted observers for foveal motions at speeds above 1 degree/s. (3) Suppressive center-surround interactions were absent below 0.5 degrees/s and their strength increased with speed. Overall, these results indicate qualitatively different sensitivities to slow and fast motions. Thresholds for very slow motion are limited by spatial resolution, while thresholds for fast motion are probably limited by temporal resolution.

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Section: Resultsmentioning

confidence: 69%

Section: Motion Speed Affects Observers With Nystagmusmentioning

confidence: 99%

Spatial and temporal limits of motion perception across variations in speed, eccentricity, and low vision

Lappin¹,

Tadin²,

Nyquist³

et al. 2009

Journal of Vision

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“…57 Fourteen studies reported a cutoff criterion for visual acuity. 1,11,13,21,27,28,30,35,47,51,54,75,78,89 Slightly more often, studies reported the degree of visual impairment (e.g., severe visual impairment, legal blindness) or fulfillment of certain criteria for low vision (e.g., the criteria for low vision of the WHO or the ICD criteria). 1,6,16,20,39,40,44,50,56,62,69,75,90,93,96,104,110,111,121 In some cases, authors quantified the number of participants with a certain degree of visual impairment, that is, how many participants had visual impairment and how many participants were blind.…”

Section: 2mentioning

confidence: 99%

“…1,6,16,20,39,40,44,50,56,62,69,75,90,93,96,104,110,111,121 In some cases, authors quantified the number of participants with a certain degree of visual impairment, that is, how many participants had visual impairment and how many participants were blind. 32,39,74,85,90,97,108,123 Thirteen studies reported the number of participants that fell into a visual acuity range or reported the visual acuity of each individual participant, 7,8,12,13,15,21,26,27,43,61,78,95,110 whereas 18 studies reported the diagnoses or cause of visual impairment of their participants. 1 studies, participants had visual impairment or blindness caused by various eye conditions.…”

Section: 2mentioning

confidence: 99%

“…51 Studies investigating social skills used social skills training, 93,124 assertiveness training, 61 communication training, 44,72 and visual perception training 111 as intervention. Viewing behavior was investigated by interventions on video games 78 and training in visual aids. 13,27,90 For studies focusing on mobility, interventions included programmed orientation and mobility instruction materials 121 and distance estimation training.…”

Section: Interventions and Comparisons In Included Studiesmentioning

confidence: 99%

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Interventions to improve functioning, participation, and quality of life in children with visual impairment: a systematic review

Elsman

Baaj

Rens

et al. 2019

Survey of Ophthalmology

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Editors Keywords: visual impairment children rehabilitation review functioning participation a b s t r a c t Visual impairment in childhood often has life-long implications. To aim for the highest levels of functioning, participation, and quality of life and to ensure children's well-being, children should be entitled to the most effective rehabilitation programs. We review evidence for the effectiveness of rehabilitation interventions for children with visual impairment to improve skills and behavior, thereby improving participation and quality of life as an ultimate goal. Of the 441 potentially relevant articles identified, 66 studies met our inclusion criteria (i.e., 28 randomized controlled trials, 18 nonrandomized controlled trials, and 20 before-after comparisons). The results suggest that sports camps, prescription and training in the use of low vision devices, and oral hygiene programs might be effective in improving functioning and elements of participation and quality of life in children with visual impairment. Other interventions showed mixed or negative results. The results should be interpreted with caution because of moderate to high risk of bias and suboptimal reporting. Heterogeneity of results and the use of over 50 different outcome measures prevented a meta-analysis. Future studies should focus on promising interventions for which effectiveness is still unclear (e.g., mobility, social skills), with adequately designed methodology.

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Predictors of Sensitivity to Perceptual Learning in Children With Infantile Nystagmus

Huurneman

Boonstra

Goossens

2017

Invest. Ophthalmol. Vis. Sci.

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Age and baseline performance, but not training joy, are important prognostic factors for the effect of perceptual learning in children with IN. However, their predictive value for achieving improvements in single-letter acuity and crowded letter acuity, respectively, differs between diagnostic subgroups and training condition. These findings may help with personalized treatment of individuals likely to benefit from perceptual learning.

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Perceptual training yields rapid improvements in visually impaired youth

Cited by 3 publications

References 49 publications

Spatial and temporal limits of motion perception across variations in speed, eccentricity, and low vision

Spatial and temporal limits of motion perception across variations in speed, eccentricity, and low vision

Interventions to improve functioning, participation, and quality of life in children with visual impairment: a systematic review

Predictors of Sensitivity to Perceptual Learning in Children With Infantile Nystagmus

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