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The effect of spatial frequency content on parameters of eye movements

The effect of spatial frequency content on parameters of eye movements Two experiments were conducted to examine the influence of the spatial frequency content of natural images on saccadic size and fixation duration. In the first experiment 10 pictures of natural textures were low-pass filtered (0.04–0.76 cycles/deg) and high-pass filtered (1.91–19.56 cycles/deg) and presented with the unfiltered originals in random order, each for 10 s, to 18 participants, with the instruction to inspect them in order to find a suitable name. The participants’ eye movements were recorded. It was found that low-pass filtered images resulted in larger saccadic amplitudes compared with high-pass filtered images. A second experiment was conducted with natural stimuli selected for different power spectra which supported the results outlined above. In general, low-spatial frequencies elicit larger saccades associated with shorter fixation durations whereas high-spatial frequencies elicit smaller saccades with longer fixation durations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Psychological Research Springer Journals

The effect of spatial frequency content on parameters of eye movements

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References (39)

Publisher
Springer Journals
Copyright
Copyright © 2008 by Springer-Verlag
Subject
Psychology; Psychology, general
ISSN
0340-0727
eISSN
1430-2772
DOI
10.1007/s00426-008-0167-1
pmid
18855008
Publisher site
See Article on Publisher Site

Abstract

Two experiments were conducted to examine the influence of the spatial frequency content of natural images on saccadic size and fixation duration. In the first experiment 10 pictures of natural textures were low-pass filtered (0.04–0.76 cycles/deg) and high-pass filtered (1.91–19.56 cycles/deg) and presented with the unfiltered originals in random order, each for 10 s, to 18 participants, with the instruction to inspect them in order to find a suitable name. The participants’ eye movements were recorded. It was found that low-pass filtered images resulted in larger saccadic amplitudes compared with high-pass filtered images. A second experiment was conducted with natural stimuli selected for different power spectra which supported the results outlined above. In general, low-spatial frequencies elicit larger saccades associated with shorter fixation durations whereas high-spatial frequencies elicit smaller saccades with longer fixation durations.

Journal

Psychological ResearchSpringer Journals

Published: Oct 15, 2008

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