# Show Reference: "Model of the Control of Saccades by Superior Colliculus and Cerebellum"

Model of the Control of Saccades by Superior Colliculus and Cerebellum Journal of Neurophysiology, Vol. 82, No. 2. (1 August 1999), pp. 999-1018 by Christian Quaia, Philippe Lefèvre, Lance M. Optican
@article{quaia-et-al-1999,
address = {Laboratory of Sensorimotor Research, National Eye Institute, Bethesda, Maryland 20892-4435, USA.},
author = {Quaia, Christian and Lef\{e}vre, Philippe and Optican, Lance M.},
citeulike-article-id = {882587},
day = {1},
issn = {0022-3077},
journal = {Journal of Neurophysiology},
keywords = {ann, model, sc},
month = aug,
number = {2},
pages = {999--1018},
pmid = {10444693},
posted-at = {2014-08-18 14:23:55},
priority = {2},
title = {Model of the Control of Saccades by Superior Colliculus and Cerebellum},
url = {http://jn.physiology.org/cgi/content/abstract/82/2/999?maxtoshow=\&HITS=10\&hits=10\&RESULTFORMAT=\&searchid=1\&FIRSTINDEX=0\&volume=82\&firstpage=999\&resourcetype=HWCIT},
volume = {82},
year = {1999}
}

`

According to Quaia, the Robinson model of saccade generation introduced the idea that saccades are controlled by a feedback loop in which the current eye position is compared to the target eye position and corrective motor signals are issued accordingly.

This idea was integrated in a family of later models.

After ablation of the SC, accurate saccades are still possible. Initially, trajectory and speed are impaired, but they recover.

Quaia et al. present a model of the saccadic system involving SC and cerebellum, which reproduces the fact that the ability to generate fast and precise saccades recovers after ablation of the SC.

Lesions to the cerebellum can permanently affect the accuracy and consistency of saccades.