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Exp Brain Res. 2004 May;156(1):124-8. Epub 2004 Mar 10.

Short-term adaptation of the cervico-ocular reflex.

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Department of Neuroscience, Erasmus MC, Rotterdam, The Netherlands.


The cervico-ocular reflex (COR) works in conjunction with the vestibulo-ocular reflex (VOR) and the optokinetic reflex (OKR) in order to prevent visual slip over the retina during head movement. The COR induces eye movements in response to proprioceptive signals from the neck. We investigated whether the COR gain can be adapted by inducing a mismatch between vision and neck proprioception, in analogy to VOR adaptation. Thirteen healthy subjects were rotated in the dark in a trunk-to-head manner (the head fixed in space while the body passively rotated sinusoidally with a peak velocity of 1.25 degrees /s). Eye movements were recorded with infrared video-oculography under various adaptive conditions. Analysis showed a small but significant reduction in COR gain in the suppression conditions. This means that the cervico-ocular reflex can be modified after only 10 min of concurrent visual and cervical stimulation.

[Indexed for MEDLINE]

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