Share Email Print

Proceedings Paper

Discrete-time model to test links between EEG power and pupil diameter measured by infrared cameras
Author(s): Andrew P. Keegan; S. L. Merritt
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Using infrared sensitive cameras and on-line image processing, pupil diameters of awake, eyes-open subjects were measured. Concurrently, electroencephalography (EEG) was monitored and power in the delta (0.5-4Hz), theta (4-8Hz), alpha (8-12Hz), sigma (12-16Hz), beta1 (16-26Hz), and beta2 (26-50Hz) bands were calculated. Pupil diameter and EEG power measured were found to be significantly correlated. Other EEG measures including relative beta (defined here as [power of 16-50Hz]/[power of 4-50Hz]) and centroid frequency of the 4-50Hz band were also found to be significantly related to pupil diameter.

Paper Details

Date Published: 18 August 1995
PDF: 8 pages
Proc. SPIE 2622, Optical Engineering Midwest '95, (18 August 1995); doi: 10.1117/12.216870
Show Author Affiliations
Andrew P. Keegan, Univ. of Illinois/Chicago (United States)
S. L. Merritt, Univ. of Illinois/Chicago (United States)

Published in SPIE Proceedings Vol. 2622:
Optical Engineering Midwest '95
Rudolph P. Guzik, Editor(s)

© SPIE. Terms of Use
Back to Top