title: Delayed development of visual motion processing in childhood migraine.
abstract: BACKGROUND
  Altered visual processing has been observed in adult migraineurs. But because visual processing has not been studied in paediatric cases, it is not known whether such visual system alterations are already present in early development. We therefore used a dynamic visual task to investigate motion detection threshold in paediatric migraine.
  
  
  METHODS
  Fourteen migraineurs and 21 controls participated in the study (age range: 8-17 years). The minimal percentage of coherently moving dot stimuli at which subjects were still able to detect coherent movement (absolute threshold) was determined using a random dot kinematogram paradigm.
  
  
  RESULTS
  Motion coherence detection threshold was higher in migraineurs (p < 0.05). This difference between groups was more pronounced at younger ages, but migraineurs seem to catch up with healthy controls over the years.
  
  
  CONCLUSIONS
  Children with migraine exhibit a delayed development of visual motion processing. This might be a useful supplementary biomarker in paediatric migraine.
authors.affiliation: Department of Physiology, University of Szeged, Szeged, Hungary.
authors.forename: Gábor
authors.initials: G
authors.lastname: Braunitzer
authors.forename: Alice
authors.initials: A
authors.lastname: Rokszin
authors.forename: Jenő
authors.initials: J
authors.lastname: Kóbor
authors.forename: György
authors.initials: G
authors.lastname: Benedek
authors.forename: Attila
authors.initials: A
authors.lastname: Nagy
authors.forename: Zsigmond Tamás
authors.initials: ZT
authors.lastname: Kincses
mesh_terms: D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008881:Migraine Disorders / Q000150:complications* / Q000503:physiopathology*; D009039:Motion Perception / Q000502:physiology*