Paper Info
Title
A 'tachometer' feedback model of smooth pursuit eye movements.
Abstract
A new model of smooth pursuit eye movements is presented. We begin by formally analyzing the stability of the proportional-derivative (PD) model of smooth pursuit eye movements using Pontryagin's theory. The PD model is the linearized version of the nonlinear Krauzlis-Lisberger (KL) model. We show that the PD model fails to account for the experimentally observed dependence of the eye velocity damping ratio and the oscillation period on the total delay in the feedback loop. To explain the data, a new ‘tachometer’ feedback model, based on an efference copy signal of eye acceleration, is proposed and analyzed by computer simulation. The model predicts some salient features of monkey pursuit data and suggests a functional role for the extraretinal input to the medial superior temporal area (MST).
Year
DOI
Venue
1995
10.1007/BF00199548
Biological Cybernetics
Keywords
Field
DocType
Feedback Loop,Functional Role,Salient Feature,Oscillation Period,Temporal Area
Smooth pursuit,Nonlinear system,Medial superior temporal area,Control theory,Efference copy,Damping ratio,Feedback loop,Tachometer,Acceleration,Mathematics
Journal
Volume
Issue
ISSN
73
6
0340-1200
Citations 
PageRank 
References 
2
0.54
3
Authors
1
Name
Order
Citations
PageRank
Dario L. Ringach1426.19