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Characterization of Pulse-step Input for Saccadic Eye Movements

Vasudevan, Varsha and Padhi, Radhakant and Murthy, Aditya (2016) Characterization of Pulse-step Input for Saccadic Eye Movements. In: 2nd Indian Control Conference (ICC), JAN 04-06, 2016, Indian Inst Technol, Hyderabad, INDIA, pp. 13-18.

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Official URL: http://dx.doi.org/10.1109/INDIANCC.2016.7441099

Abstract

The understanding of the neuronal firing input to the motor neurons innervating oculomotor muscles is vital in studying control of eye-movements. The firing rate of the motor neurons which causes rapid eye movements called saccades has been characterized here using a Gaussian function. Using experimental horizontal saccade data, the parameters of the Gaussian function are estimated by least square minimization. These parameters, peak firing rate and time-to-peak of the input firing rate were observed to be functions of the saccade amplitude. Their relationship is quantified using a least square curve fit. The peak firing rate is found to be linearly varying with saccade amplitude and time-to-peak varies as a quadratic function of saccade amplitude. The model can predict the input firing rate of motor neurons for all saccade amplitudes independent of the availability of data. This work provides a method that can be extended for predicting the neural firing rates to be generated by the motor neurons at the oculomotor muscles for producing different classes of eye movements.

Item Type: Conference Proceedings
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Additional Information: Copy right for this article belongs to the IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Department/Centre: Division of Biological Sciences > Centre for Neuroscience
Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Others
Date Deposited: 22 Oct 2016 09:31
Last Modified: 22 Oct 2016 09:31
URI: http://eprints.iisc.ernet.in/id/eprint/55040

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