[Contingent negative variation in  10-year-old children. Relations with the type of performance in a task of spatial localization].
CNV magnitude was studied in a task involving spatial localization and discrimination Subjects were 18 children 10 years of age. The CNV amplitude of half the subjects increased when the performance decreased and, in the other half, CNV amplitude decreased when the performance decreased. However, it seems that CNV magnitude increases as task difficulty increases but only above a minimal threshold varying with the subject. The results suggest that CNV amplitude cannot be related to a single psychological factor.
D000367:Age Factors; D001288:Attention / Q000502:physiology; D002648:Child; D003265:Contingent Negative Variation; D004192:Discrimination, Psychological / Q000502:physiology; D004594:Electrophysiology; D005260:Female; D006801:Humans; D008297:Male; D009042:Motivation / Q000502:physiology; D013028:Space Perception / Q000502:physiology*
Variation contingente negative chez l'enfant de 10 ans. Relations avec le type de performance dans une tache de localisation spatiale