Aug 19, 2015

Human Vection Perception Using Inertial Nulling and Certainty Estimation: The Effect of Migraine History

PloS One
Mark A MillerBenjamin T Crane

Abstract

Vection is an illusory perception of self-motion that can occur when visual motion fills the majority of the visual field. This study examines the effect of the duration of visual field movement (VFM) on the perceived strength of self-motion using an inertial nulling (IN) and a magnitude estimation technique based on the certainty that motion occurred (certainty estimation, CE). These techniques were then used to investigate the association between migraine diagnosis and the strength of perceived vection. Visual star-field stimuli consistent with either looming or receding motion were presented for 1, 4, 8 or 16s. Subjects reported the perceived direction of self-motion during the final 1s of the stimulus. For the IN method, an inertial nulling motion was delivered during this final 1s of the visual stimulus, and subjects reported the direction of perceived self-motion during this final second. The magnitude of inertial motion was varied adaptively to determine the point of subjective equality (PSE) at which forward or backward responses were equally likely. For the CE trials the same range of VFM was used but without inertial motion and subjects rated their certainty of motion on a scale of 0-100. PSE determined with the IN te...Continue Reading

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Mentioned in this Paper

Neuro-Oncological Ventral Antigen 2
Study
Migraine With Aura
4-(1-pyrene)butyric acid N-hydroxysuccinimide ester
Research Subject
Visual Perception
Research Methodology
Status Migrainosus
Headache Disorders
Visual Fields

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