Daroff_03-11 Anatomy and Physiology of the Saccade System

Identifier: Daroff_03-11 Title: Anatomy and Physiology of the Saccade System Subject: Saccades; Saccadic Eye Movements; Supranuclear Input Description: Saccades depend on a pulse-step firing pattern that allows an initiation of the saccade (pulse), and maintenance of the new eye position in space (step). This video explains the anatomical pathway for this type of activation. The burst cells, which lie in the PPRF, generate the pulse, while the nucleus prepositus hypoglossi and medial vestibular nuclei are responsible for integrating the pulse, yielding the step. Lesions of the pulse generator produce slow-to-no-saccades. This video is part of the Daroff Collection in NOVEL, the Neuro-Ophthalmology Virtual Education Library. Please cite the source when using this video. NOVEL.utah.edu Copyright 2010. For further information regarding the rights to this collection, please visit http://library.med.utah.edu/NOVEL/about/copyright