Effects of age, viewing distance and target complexity on static ocular counterroll

The ocular counterroll (OCR) reflex generates partially compensatory torsional eye movements during static head roll tilt. We assessed the influence of age, viewing distance and target complexity on the OCR across the age span (13–63 years; n = 47), by recording eye movements during head-on-body rol...

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Bibliographic Details
Published in:Vision research (Oxford) Vol. 49; no. 14; pp. 1848 - 1852
Main Authors: Goltz, Herbert C., Mirabella, Giuseppe, Leung, Joanne C.Y., Blakeman, Alan W., Colpa, Linda, Abuhaleeqa, Khaled, Wong, Agnes M.F.
Format: Journal Article
Language:English
Published: Kidlington Elsevier Ltd 01.07.2009
Elsevier
Subjects:
Adolescent
Adult
Age
Aging - physiology
Analysis of Variance
Biological and medical sciences
Convergence, Ocular
Distance Perception - physiology
Eye and associated structures. Visual pathways and centers. Vision
Eye Movements - physiology
Female
Fixation, Ocular
Form Perception - physiology
Fundamental and applied biological sciences. Psychology
Head Movements
Humans
Male
Middle Aged
OCR
Otolith
Posture
Reflex
Target characteristics
Vergence
Vertebrates: nervous system and sense organs
Vestibular
Young Adult
Vergence
Target characteristics
Otolith
Age
OCR
Vestibular
ISSN:0042-6989, 1878-5646, 1878-5646
Online Access:Get full text
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Summary:The ocular counterroll (OCR) reflex generates partially compensatory torsional eye movements during static head roll tilt. We assessed the influence of age, viewing distance and target complexity on the OCR across the age span (13–63 years; n = 47), by recording eye movements during head-on-body roll tilt (0 ± 40° in 5° steps) while subjects viewed simple vs. complex targets at 0.33 and 1 m. We found that subjects ⩾31 years had lower gains than those ⩽30 years, but only for far targets. Consistent with prior reports, far targets elicited higher OCR gains than near targets, and target complexity had no effect on gains, suggesting that visual input is primarily used to maintain vergence during OCR.
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ISSN:0042-6989
1878-5646
1878-5646
DOI:10.1016/j.visres.2009.04.021