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Effects of contrast on smooth pursuit eye movements.

Content Provider	Semantic Scholar
Author	Spering, Miriam Kerzel, Dirk Braun, Doris I. Hawken, Michael J. Gegenfurtner, Karl R.
Copyright Year	2005
Abstract	It is well known that moving stimuli can appear to move more slowly when contrast is reduced (P. Thompson, 1982). Here we address the question whether changes in stimulus contrast also affect smooth pursuit eye movements. Subjects were asked to smoothly track a moving Gabor patch. Targets varied in velocity (1, 8, and 15 deg/s), spatial frequency (0.1, 1, 4, and 8 c/deg), and contrast, ranging from just below individual thresholds to maximum contrast. Results show that smooth pursuit eye velocity gain rose significantly with increasing contrast. Below a contrast level of two to three times threshold, pursuit gain, acceleration, latency, and positional accuracy were severely impaired. Therefore, the smooth pursuit motor response shows the same kind of slowing at low contrast that was demonstrated in previous studies on perception.
Starting Page	68
Ending Page	70
Page Count	3
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.unige.ch/fapse/PSY/persons/kerzel/reprints/JOV.2005.pdf
Alternate Webpage(s)	http://www.allpsych.uni-giessen.de/miriam/publications/Spering.Etal.JOV.2005.pdf
Alternate Webpage(s)	http://www.cns.nyu.edu/~mjh/papers_pdf/Spering_jov_5_455_05.pdf
Alternate Webpage(s)	http://www.visualcognition.ca/spering/publications/SperingEtal.JOV.2005.pdf
Alternate Webpage(s)	http://www.psych.nyu.edu/carrascolab/people/SperingEtal.JOV.2005.pdf
PubMed reference number	16097876v1
Volume Number	5
Issue Number	5
Journal	Journal of vision
Language	English
Access Restriction	Open
Subject Keyword	Degree Unit of Plane Angle Eye Movements Hearing Loss, High-Frequency Movement Myocytes, Smooth Muscle Pursuit, Smooth
Content Type	Text
Resource Type	Article

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