Dorsal and ventral stream sensitivity in normal development and hemiplegia

Alison Gunn, Elizabeth Cory, Janette Atkinson, Oliver Braddick, John Wattam-Bell, Andrea Guzzetta, Giovanni Cioni

Research output: Contribution to journalArticle

Abstract

Form and motion coherence thresholds can provide comparable measures of global visual processing in the ventral and dorsal streams respectively. Normal development of thresholds was tested in 360 normally developing children aged 4-11 and in normal adults. The two tasks showed similar developmental trends, with some greater variability and a slight delay in motion coherence compared to form coherence performance, in reaching adult levels. To examine the proposal of dorsal stream vulnerability related to specific developmental disorders, we compared 24 children with hemiplegic cerebral palsy with the normally developing group. Hemiplegic children performed significantly worse than controls on the motion coherence task for their age, but not on the form coherence task; however, within this group no specific brain area was significantly associated with poor motion compared to form coherence performance. These results suggest that extrastriate mechanisms mediating these thresholds normally develop in parallel, but that the dorsal stream has a greater, general vulnerability to early neurological impairment.

Original languageEnglish
Pages (from-to)843-847
Number of pages5
JournalNeuroReport
Volume13
Issue number6
Publication statusPublished - May 7 2002

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Hemiplegia
Cerebral Palsy
Brain

Keywords

  • Developmental disorders
  • Dorsal stream
  • Form coherence
  • Hemiplegia
  • Motion coherence
  • Ventral stream
  • Visual perception

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Gunn, A., Cory, E., Atkinson, J., Braddick, O., Wattam-Bell, J., Guzzetta, A., & Cioni, G. (2002). Dorsal and ventral stream sensitivity in normal development and hemiplegia. NeuroReport, 13(6), 843-847.

Dorsal and ventral stream sensitivity in normal development and hemiplegia. / Gunn, Alison; Cory, Elizabeth; Atkinson, Janette; Braddick, Oliver; Wattam-Bell, John; Guzzetta, Andrea; Cioni, Giovanni.

In: NeuroReport, Vol. 13, No. 6, 07.05.2002, p. 843-847.

Research output: Contribution to journalArticle

Gunn, A, Cory, E, Atkinson, J, Braddick, O, Wattam-Bell, J, Guzzetta, A & Cioni, G 2002, 'Dorsal and ventral stream sensitivity in normal development and hemiplegia', NeuroReport, vol. 13, no. 6, pp. 843-847.
Gunn A, Cory E, Atkinson J, Braddick O, Wattam-Bell J, Guzzetta A et al. Dorsal and ventral stream sensitivity in normal development and hemiplegia. NeuroReport. 2002 May 7;13(6):843-847.
Gunn, Alison ; Cory, Elizabeth ; Atkinson, Janette ; Braddick, Oliver ; Wattam-Bell, John ; Guzzetta, Andrea ; Cioni, Giovanni. / Dorsal and ventral stream sensitivity in normal development and hemiplegia. In: NeuroReport. 2002 ; Vol. 13, No. 6. pp. 843-847.
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