Global motion perception in 2-year-old children

a method for psychophysical assessment and relationships with clinical measures of visual function

CHYLD Study Team

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

PURPOSE: We developed and validated a technique for measuring global motion perception in 2-year-old children, and assessed the relationship between global motion perception and other measures of visual function.

METHODS: Random dot kinematogram (RDK) stimuli were used to measure motion coherence thresholds in 366 children at risk of neurodevelopmental problems at 24 ± 1 months of age. RDKs of variable coherence were presented and eye movements were analyzed offline to grade the direction of the optokinetic reflex (OKR) for each trial. Motion coherence thresholds were calculated by fitting psychometric functions to the resulting datasets. Test-retest reliability was assessed in 15 children, and motion coherence thresholds were measured in a group of 10 adults using OKR and behavioral responses. Standard age-appropriate optometric tests also were performed.

RESULTS: Motion coherence thresholds were measured successfully in 336 (91.8%) children using the OKR technique, but only 31 (8.5%) using behavioral responses. The mean threshold was 41.7 ± 13.5% for 2-year-old children and 3.3 ± 1.2% for adults. Within-assessor reliability and test-retest reliability were high in children. Children's motion coherence thresholds were significantly correlated with stereoacuity (LANG I & II test, ρ = 0.29, P < 0.001; Frisby, ρ = 0.17, P = 0.022), but not with binocular visual acuity (ρ = 0.11, P = 0.07). In adults OKR and behavioral motion coherence thresholds were highly correlated (intraclass correlation = 0.81, P = 0.001).

CONCLUSIONS: Global motion perception can be measured in 2-year-old children using the OKR. This technique is reliable and data from adults suggest that motion coherence thresholds based on the OKR are related to motion perception. Global motion perception was related to stereoacuity in children.

Original languageEnglish
Pages (from-to)8408-19
Number of pages12
JournalInvestigative Ophthalmology
Volume54
Issue number13
DOIs
Publication statusPublished - 30 Dec 2013

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Motion Perception
Reflex
Reproducibility of Results
Eye Movements
Psychometrics
Visual Acuity

Cite this

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title = "Global motion perception in 2-year-old children: a method for psychophysical assessment and relationships with clinical measures of visual function",
abstract = "PURPOSE: We developed and validated a technique for measuring global motion perception in 2-year-old children, and assessed the relationship between global motion perception and other measures of visual function.METHODS: Random dot kinematogram (RDK) stimuli were used to measure motion coherence thresholds in 366 children at risk of neurodevelopmental problems at 24 ± 1 months of age. RDKs of variable coherence were presented and eye movements were analyzed offline to grade the direction of the optokinetic reflex (OKR) for each trial. Motion coherence thresholds were calculated by fitting psychometric functions to the resulting datasets. Test-retest reliability was assessed in 15 children, and motion coherence thresholds were measured in a group of 10 adults using OKR and behavioral responses. Standard age-appropriate optometric tests also were performed.RESULTS: Motion coherence thresholds were measured successfully in 336 (91.8{\%}) children using the OKR technique, but only 31 (8.5{\%}) using behavioral responses. The mean threshold was 41.7 ± 13.5{\%} for 2-year-old children and 3.3 ± 1.2{\%} for adults. Within-assessor reliability and test-retest reliability were high in children. Children's motion coherence thresholds were significantly correlated with stereoacuity (LANG I & II test, ρ = 0.29, P < 0.001; Frisby, ρ = 0.17, P = 0.022), but not with binocular visual acuity (ρ = 0.11, P = 0.07). In adults OKR and behavioral motion coherence thresholds were highly correlated (intraclass correlation = 0.81, P = 0.001).CONCLUSIONS: Global motion perception can be measured in 2-year-old children using the OKR. This technique is reliable and data from adults suggest that motion coherence thresholds based on the OKR are related to motion perception. Global motion perception was related to stereoacuity in children.",
keywords = "Adult, Biomechanical Phenomena, Child, Preschool, Eye Movements/physiology, Humans, Motion Perception/physiology, Nystagmus, Optokinetic, Psychophysics, Reproducibility of Results, Sensory Thresholds, Vision Tests/methods, Visual Acuity/physiology",
author = "{CHYLD Study Team} and Tzu-Ying Yu and Jacobs, {Robert J} and Anstice, {Nicola S} and Nabin Paudel and Harding, {Jane E} and Benjamin Thompson",
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Global motion perception in 2-year-old children : a method for psychophysical assessment and relationships with clinical measures of visual function. / CHYLD Study Team.

In: Investigative Ophthalmology, Vol. 54, No. 13, 30.12.2013, p. 8408-19.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Global motion perception in 2-year-old children

T2 - a method for psychophysical assessment and relationships with clinical measures of visual function

AU - CHYLD Study Team

AU - Yu, Tzu-Ying

AU - Jacobs, Robert J

AU - Anstice, Nicola S

AU - Paudel, Nabin

AU - Harding, Jane E

AU - Thompson, Benjamin

PY - 2013/12/30

Y1 - 2013/12/30

N2 - PURPOSE: We developed and validated a technique for measuring global motion perception in 2-year-old children, and assessed the relationship between global motion perception and other measures of visual function.METHODS: Random dot kinematogram (RDK) stimuli were used to measure motion coherence thresholds in 366 children at risk of neurodevelopmental problems at 24 ± 1 months of age. RDKs of variable coherence were presented and eye movements were analyzed offline to grade the direction of the optokinetic reflex (OKR) for each trial. Motion coherence thresholds were calculated by fitting psychometric functions to the resulting datasets. Test-retest reliability was assessed in 15 children, and motion coherence thresholds were measured in a group of 10 adults using OKR and behavioral responses. Standard age-appropriate optometric tests also were performed.RESULTS: Motion coherence thresholds were measured successfully in 336 (91.8%) children using the OKR technique, but only 31 (8.5%) using behavioral responses. The mean threshold was 41.7 ± 13.5% for 2-year-old children and 3.3 ± 1.2% for adults. Within-assessor reliability and test-retest reliability were high in children. Children's motion coherence thresholds were significantly correlated with stereoacuity (LANG I & II test, ρ = 0.29, P < 0.001; Frisby, ρ = 0.17, P = 0.022), but not with binocular visual acuity (ρ = 0.11, P = 0.07). In adults OKR and behavioral motion coherence thresholds were highly correlated (intraclass correlation = 0.81, P = 0.001).CONCLUSIONS: Global motion perception can be measured in 2-year-old children using the OKR. This technique is reliable and data from adults suggest that motion coherence thresholds based on the OKR are related to motion perception. Global motion perception was related to stereoacuity in children.

AB - PURPOSE: We developed and validated a technique for measuring global motion perception in 2-year-old children, and assessed the relationship between global motion perception and other measures of visual function.METHODS: Random dot kinematogram (RDK) stimuli were used to measure motion coherence thresholds in 366 children at risk of neurodevelopmental problems at 24 ± 1 months of age. RDKs of variable coherence were presented and eye movements were analyzed offline to grade the direction of the optokinetic reflex (OKR) for each trial. Motion coherence thresholds were calculated by fitting psychometric functions to the resulting datasets. Test-retest reliability was assessed in 15 children, and motion coherence thresholds were measured in a group of 10 adults using OKR and behavioral responses. Standard age-appropriate optometric tests also were performed.RESULTS: Motion coherence thresholds were measured successfully in 336 (91.8%) children using the OKR technique, but only 31 (8.5%) using behavioral responses. The mean threshold was 41.7 ± 13.5% for 2-year-old children and 3.3 ± 1.2% for adults. Within-assessor reliability and test-retest reliability were high in children. Children's motion coherence thresholds were significantly correlated with stereoacuity (LANG I & II test, ρ = 0.29, P < 0.001; Frisby, ρ = 0.17, P = 0.022), but not with binocular visual acuity (ρ = 0.11, P = 0.07). In adults OKR and behavioral motion coherence thresholds were highly correlated (intraclass correlation = 0.81, P = 0.001).CONCLUSIONS: Global motion perception can be measured in 2-year-old children using the OKR. This technique is reliable and data from adults suggest that motion coherence thresholds based on the OKR are related to motion perception. Global motion perception was related to stereoacuity in children.

KW - Adult

KW - Biomechanical Phenomena

KW - Child, Preschool

KW - Eye Movements/physiology

KW - Humans

KW - Motion Perception/physiology

KW - Nystagmus, Optokinetic

KW - Psychophysics

KW - Reproducibility of Results

KW - Sensory Thresholds

KW - Vision Tests/methods

KW - Visual Acuity/physiology

U2 - 10.1167/iovs.13-13051

DO - 10.1167/iovs.13-13051

M3 - Article

VL - 54

SP - 8408

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JO - Investigative Ophthalmology

JF - Investigative Ophthalmology

SN - 0146-0404

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ER -