Visuo-perceptual impairment and cerebral lesions in spastic diplegia with preterm birth

Koeda, Tatsuya; Takeshita, Kenzo

doi:10.1016/s0387-7604(12)80237-3

Cited by 97 publications

(41 citation statements)

References 10 publications

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“…An association between PVL and impairment of object recognition has also been reported (van den Hout et al, 2004;Stiers et al, 2001;Stiers, De Cock, & Vandenbussche, 1998, which is significantly correlated to specific anatomical features, such as decreased volume of the peritrigonal white matter and thinning of the parieto-occipital white matter (Ito et al, 1996;Goto, Ota, Iai, Sugita, & Tanabe, 1994;Koeda & Takeshita, 1992). Recently, we have shown that the perception of flow motion in diplegic children with cystic PVL is impaired, both for translational and rotational flow motion (Guzzetta et al, submitted).…”

Section: Introductionmentioning

confidence: 56%

Inversion of Perceived Direction of Motion Caused by Spatial Undersampling in Two Children with Periventricular Leukomalacia

Morrone

Guzzetta

Tinelli

et al. 2008

Journal of Cognitive Neuroscience

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Abstract& We report here two cases of two young diplegic patients with cystic periventricular leukomalacia who systematically, and with high sensitivity, perceive translational motion of a random-dot display in the opposite direction. The apparent inversion was specific for translation motion: Rotation and expansion motion were perceived correctly, with normal sensitivity. It was also specific for random-dot patterns, not occurring with gratings. For the one patient that we were able to test extensively, contrast sensitivity for static stimuli was normal, but was very low for direction discrimination at high spatial frequencies and all temporal frequencies. His optokinetic nystagmus movements were normal but he was unable to track a single translating target, indicating a perceptual origin of the tracking deficit. The severe deficit for motion perception was also evident in the seminatural situation of a driving simulation video game. The perceptual deficit for translational motion was reinforced by functional magnetic resonance imaging studies. Translational motion elicited no response in the MT complex, although it did produce a strong response in many visual areas when contrasted with blank stimuli. However, radial and rotational motion produced a normal pattern of activation in a subregion of the MT complex. These data reinforce the existent evidence for independent cortical processing for translational, and circular or radial flow motion, and further suggest that the two systems have different vulnerability and plasticity to prenatal damage. They also highlight the complexity of visual motion perception, and how the delicate balance of neural activity can lead to paradoxical effects such as consistent misperception of the direction of motion. We advance a possible explanation of a reduced spatial sampling of the motion stimuli and report a simple model that simulates well the experimental results. &

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Section: Introductionmentioning

confidence: 56%

Inversion of Perceived Direction of Motion Caused by Spatial Undersampling in Two Children with Periventricular Leukomalacia

Morrone

Guzzetta

Tinelli

et al. 2008

Journal of Cognitive Neuroscience

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“…33 An association with WMDI and subnormal performance IQ has also previously been shown. Koeda and coworkers 36 found that visuoperceptual impairment correlated well to the extent of the brain lesion in children born preterm with spastic diplegia and WMDI. A study of children with spastic diplegia and WMDI revealed a correlation between strabismus, mainly esotropia and visuospatial deficits.…”

Section: Discussionmentioning

confidence: 96%

Visuospatial skills, ocular alignment, and magnetic resonance imaging findings in very low birth weight adolescents

Hellgren

Aring

Jacobson

et al. 2009

Journal of American Association for Pediatric Ophthalmology and

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“…Reduction of the volume of the peritrigonal white matter on MRI has been reported to correlate with impairment of visual perception in children with spastic diplegia. 27 Also, a negative correlation has been observed between visuoperceptual ability and the ratio of the areas of the posterior horns of the lateral ventricles to the anterior horns in children with spastic diplegia and spina bifida with hydrocephalus. 28,29 Lesions of the periventricular white matter visible by MRI are common in children who were born prematurely and PVL is also reported to be common in apparently healthy preterm children.…”

Section: Discussionmentioning

confidence: 97%

Subnormal visual perception in school-aged ex-preterm patients in a paediatric eye clinic

Al¹,

Aring²,

Hellström³

2004

Eye

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Purpose The aim of this study was to assess visual perception at school age of children born preterm with known lesions to the posterior visual pathways or with ophthalmologic signs that might indicate such lesions. Methods The study group consisted of 91 patients born before the 37th gestational week. Visual perception was assessed using the TVPS-R (Test of Visual Perceptual SkillsRevised) and a structured interview. In addition, ophthalmologic and orthoptic examinations were performed. Results On the test of visual perception, 67% of the patients had results below the third percentile of the American reference group. This is to be compared with 10% of Swedish full-term controls. Scores below the third percentile were observed in 87% of the patients with known brain lesions, 48% of those with strabismus without known brain lesion, and 86% of those with reduced visual acuity in the absence of strabismus and known brain lesion. Conclusions Reduced visual perception is common among children born preterm who have strabismus and/or reduced visual acuity, as well as in those with known brain lesions. This study emphasises the need to find tools to identify and assess those patients who have visual perceptual problems that may restrict their ability to meet the demands of daily life.

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Visuo-perceptual impairment and cerebral lesions in spastic diplegia with preterm birth

Cited by 97 publications

References 10 publications

Inversion of Perceived Direction of Motion Caused by Spatial Undersampling in Two Children with Periventricular Leukomalacia

Inversion of Perceived Direction of Motion Caused by Spatial Undersampling in Two Children with Periventricular Leukomalacia

Visuospatial skills, ocular alignment, and magnetic resonance imaging findings in very low birth weight adolescents

Subnormal visual perception in school-aged ex-preterm patients in a paediatric eye clinic

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