Do migraineurs have difficulty judging direction of simulated heading?

McKendrick, A, Turpin, A, Webb, S and Badcock, D 2006, 'Do migraineurs have difficulty judging direction of simulated heading?', Cephalalgia, vol. 26, no. 8, pp. 949-959.


Document type: Journal Article
Collection: Journal Articles

Title Do migraineurs have difficulty judging direction of simulated heading?
Author(s) McKendrick, A
Turpin, A
Webb, S
Badcock, D
Year 2006
Journal name Cephalalgia
Volume number 26
Issue number 8
Start page 949
End page 959
Total pages 11
Publisher Wiley-Blackwell Publishing Ltd.
Abstract Some migraineurs have increased thresholds for the detection of global dot motion. We investigated whether migraineurs show consequential abnormalities in the determination of direction of self-motion (heading) from simulated optic flow. The ability to determine heading from optic flow is likely to be necessary for optimal determination of self-motion through the environment. Twenty-five migraineurs and 25 controls participated. Global dot motion coherence thresholds were assessed, in addition to performance on two simulated heading tasks: one with a symmetrical flow field, and the second with differing velocity of optic flow on the left and right sides of the participant. While some migraineurs demonstrated abnormal global motion coherence thresholds, there was no difference in performance on the heading tasks at either simulated walking (5 km/h) or driving (50 km/h) speeds. Increased global motion coherence thresholds in migraineurs do not result in abnormal judgements of heading from 100% coherent optic flow.
Subject Clinical Sciences not elsewhere classified
Copyright notice © Blackwell Publishing Ltd.
ISSN 0333-1024
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