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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/19639

Title: A spectrum of colors: investigating the temporal frequency characteristics of the human visual system using a system identification approach
Other Titles: Annual International Conference of the IEEE Engineering in Medicine and Biology Society: 28th: 2006
Author: LALOR, EDMUND
REILLY, RICHARD
Sponsor: Science Foundation Ireland
Higher Education Authority
Author's Homepage: http://people.tcd.ie/lalored
http://people.tcd.ie/reillyri
Keywords: Noise input signals
Human visual system
Issue Date: 2006
Publisher: IEEE
Citation: Lalor, E. C., Pearlmutter, B. A., Reilly, R. B., and Foxe, J. J. , A spectrum of colors: Investigating the temporal frequency characteristics of the human visual system using a system identification approach: [in] proceedings of the 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, New York: IEEE, 2006, pp3720 - 3723
Abstract: Noise input signals are commonly used in both linear and nonlinear system identification of physiological systems. This method can be applied to electrophysiological analysis of the human visual system by controlling the modulation of the contrast of a checkerboard stimulus using a pre-computed noise waveform. In this study we describe how one can obtain an estimate of the linear impulse response of the visual system using noise waveforms. Furthermore, we examine the impulse responses obtained using noise signals with different frequency characteristics, in an attempt to investigate the temporal frequency characteristics of the human visual system. We show that noise signals with frequency content greater than 15 Hz are more effective at evoking these responses than those with little or no power at high frequencies.
Description: PUBLISHED
URI: http://ieeexplore.ieee.org/iel5/4028925/4461641/04462607.pdf?tp=&arnumber=4462607&isnumber=4461641
http://hdl.handle.net/2262/19639
Appears in Collections:Electronic & Electrical Eng (Scholarly Publications)

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