Differential vulnerability of global motion, global form, and biological motion processing in full-term and preterm children

Taylor, Nicole; Jakobson, Lorna S.; Maurer, Daphne; Lewis, Terri L.

doi:10.1016/j.neuropsychologia.2009.06.001

Cited by 133 publications

(112 citation statements)

References 112 publications

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“…However, the sample size of 120 infants in each group was estimated to detect a reduction in the proportion of growth-restricted infants. The current sample size is similar to other VERP studies [8,9,12]. The groups were different at birth, with lower BW and head circumference and more SGA infants in the intervention group.…”

Section: Discussionsupporting

confidence: 67%

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Improved Visual Perception in Very Low Birth Weight Infants on Enhanced Nutrient Supply

Blakstad

Strømmen²,

Moltu³

et al. 2015

Neonatology

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Background: Optimal nutrient supply to very low birth weight (VLBW: BW <1,500 g) infants is important for growth and neurodevelopment. Growth restriction is common among these infants and may be associated with neurocognitive impairments. Objectives: To compare an enhanced nutrient supply to a routine supply given to VLBW infants and to evaluate the effects on visual perception of global form and motion measured by visual event-related potentials (VERP). Methods: A total of 50 VLBW infants were randomized to an intervention group that received an increased supply of energy, protein, fat, essential fatty acids, and vitamin A or a control group that received standard nutritional care. At 5 months' corrected age the infants were examined using VERP to investigate the responses to global form and motion. VERP were analysed at the first (f1) and third (f3) harmonics of the stimulus frequency. Results: Data from 31 subjects were eligible for analysis. The motion VERP responses for the f1 and f3 components were stronger in the area near the posterior midline region in the intervention group compared to the controls in the group analyses (p = 0.02 and p = 0.001, respectively). Conclusion: The results showed a more consistent response to global motion among infants receiving enhanced nutrition. The intervention may have improved visual perception of global motion.

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Section: Discussionsupporting

confidence: 67%

“…At 5 months of age, term-born infants are able to integrate local visual information and detect global motion and form patterns [8]. Very preterm born children have demonstrated impaired visual perception [11], including deficits in global motion perception [12]. …”

Section: Introductionmentioning

confidence: 99%

Improved Visual Perception in Very Low Birth Weight Infants on Enhanced Nutrient Supply

Blakstad

Strømmen²,

Moltu³

et al. 2015

Neonatology

View full text Add to dashboard Cite

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“…Such traits include difficulties in processing biological motion, facial expressions or social perception (Pavlova, Sokolov, Birbaumer, & KragelohMann, 2006;Wocadlo & Rieger, 2006;Indredavik, Vik, Skranes, & Brubakk, 2008;Taylor, Jakobson, Maurer, & Lewis, 2009). The significance of an early preference to the mouth within the preterm group requires further investigation.…”

Section: Discussionmentioning

confidence: 99%

Preterm birth is associated with atypical social orienting in infancy detected using eye tracking

Telford

Fletcher‐Watson

Gillespie‐Smith

et al. 2016

Child Psychology Psychiatry

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Background: Preterm birth is closely associated with neurocognitive impairment in childhood including increased risk for social difficulties. Eye tracking objectively assesses eye-gaze behaviour in response to visual stimuli, which permits inference about underlying cognitive processes. We tested the hypothesis that social orienting in infancy is altered by preterm birth. Methods: Fifty preterm infants with mean (range) gestational age (GA) at birth of 29 +1 (23 +2 -33 +0 ) weeks and 50 term infants with mean (range) GA at birth 40 +2 (37 +0 -42 +3 ) weeks underwent eye tracking at median age of 7 months. Infants were presented with three categories of social stimuli of increasing complexity. Time to first fixate (TFF) and looking time (LT) on areas of interest (AoIs) were recorded using remote eye tracking. Results: Preterm infants consistently fixated for a shorter time on social content than term infants across all three tasks: face-scanning (fixation to eyes minus mouth 0.61s vs. 1.47s, p = .013); face pop-out task (fixation to face 0.8s vs. 1.34s, p = .023); and social preferential looking (1.16s vs. 1.5s p = .02). Time given to AoIs containing social content as a proportion of LT at the whole stimulus was lower in preterm infants across all three tasks. These results were not explained by differences in overall looking time between the groups. Conclusions: Eye tracking provides early evidence of atypical cognition after preterm birth, and may be a useful tool for stratifying infants at risk of impairment for early interventions designed to improve outcome.

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“…This functional segregation allows for differences in the development and potential vulnerabilities of the two pathways to be explored and as a result global form and motion perception have been studied extensively in both typically developing (Atkinson et al, 2004;. Braddick, Atkinson, & Wattam-Bell, 2003;Golarai, 2009;Gunn et al, 2002) and atypical populations (Atkinson et al, 1997;Ellemberg, Lewis, Maurer, Brar, & Brent, 2002;Kogan et al, 2004;Lewis et al, 2002;Taylor, Jakobson, Maurer, & Lewis, 2009). The present research, leading up to work with patient populations who developed with atypical visual input, will also allow us to better understand the development of global form, global motion and biological motion perception.…”

Section: Introductionmentioning

confidence: 99%

Cortical processing of global form, motion and biological motion under low light levels

et al. 2016

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'Cortical processing of global form, motion and biological motion under low light levels.', Vision research., 121. pp. 39-49. Further information on publisher's website: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. however, global form thresholds were relatively more impaired than those for global motion or biological motion. VEP responses to coherent global form and motion were reduced in low light, and motion responses showed a shift in topography from the midline to more lateral locations. Contrast sensitivity measures confirmed that basic visual processing was also affected by low light. However, comparison with CSF reductions achieved by optical blur indicated that these were insufficient to explain the pattern of results, although the temporal properties of the rod system may also play a role.Overall, mid-level processing in extra-striate areas is differentially affected by light level, in ways that cannot be explained in terms of low-level spatiotemporal sensitivity. A topographical shift in scotopic motion VEP responses may reflect either changes to inhibitory feedback mechanisms between V1 and extra-striate regions or a reduction of input to the visual cortex. These results provide insight into how higher-level cortical vision is normally organised in absence of cone input, and provide a basis for comparison with patients with cone dystrophies, before and after treatments aiming to restore cone function.

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Differential vulnerability of global motion, global form, and biological motion processing in full-term and preterm children

Cited by 133 publications

References 112 publications

Improved Visual Perception in Very Low Birth Weight Infants on Enhanced Nutrient Supply

Improved Visual Perception in Very Low Birth Weight Infants on Enhanced Nutrient Supply

Preterm birth is associated with atypical social orienting in infancy detected using eye tracking

Cortical processing of global form, motion and biological motion under low light levels

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