Cortical processing of visual motion in young infants.
High-density EEG was used to investigate the cortical processing of a rotating visual pattern in 2-, 3-, and 5-month-old infants and in adults. Motion induced ERP in the parietal and the temporal-occipital border regions (OT) was elicited at all ages. The ERP was discernable in the 2-months-olds, significant and unilateral in the 3-month-olds and significantly bilateral in the 5-month-olds and adults. The motion induced ERP in the primary visual area was absent in the 2-month-olds and later than in the OT area for the 3-month-olds indicating that information to OT may be supplied by the V1 bypass at these ages. The results are in agreement with behavioural and psychophysical data in infants.
Rosander
Kerstin
K
Department of Psychology, Box 1225, Uppsala University, 75142 Uppsala, Sweden. kerstin.rosander@psyk.uu.se
Nyström
Pär
P
Gredebäck
Gustaf
G
von Hofsten
Claes
C
D000328:Adult; D000704:Analysis of Variance; D001288:Attention; D002657:Child Development / Q000502:physiology*; D004569:Electroencephalography; D005071:Evoked Potentials / Q000502:physiology; D005074:Evoked Potentials, Visual / Q000502:physiology; D006801:Humans; D007223:Infant; D009039:Motion Perception / Q000502:physiology*; D012399:Rotation; D014793:Visual Cortex / Q000502:physiology*; D014795:Visual Pathways / Q000502:physiology