COGNITIVE NEUROSCIENCECortical development and saccade planning The ontogeny of the spike potentialCsibra, Gergely1,2; Tucker, Leslie A.1; Volein, Ágnes1; Johnson, Mark H.1Author Information 1Centre for Brain and Cognitive Development, School of Psychology, Birkbeck College, Malet Street, London WC1H 7HX, UK 2Corresponding Author: Gergely Csibra Received 22 December 1999; accepted 27 January 2000 NeuroReport: April 7, 2000 - Volume 11 - Issue 5 - p 1069-1073 Buy Abstract The spike potential is a sharply timed positivity which precedes eye movements in adults, and is thought to indicate cortical planning of saccades. While the spike potential is observed under most conditions in adults, it has not been reported in young infants. In the present study we shed light on the ontogeny of the spike potential by demonstrating for the first time its existence in a group of older infants (12 months). This result is consistent with a relatively delayed onset of cortical control over saccades during development. © 2000 Lippincott Williams & Wilkins, Inc.