Altered Processing of Complex Visual Stimuli in Patients with Postconcussive Visual Motion Sensitivity.

ABSTRACT:

Background and purpose

Vestibular symptoms are common after concussion. Vestibular Ocular Motor Screening identifies vestibular impairment, including postconcussive visual motion sensitivity, though the underlying functional brain alterations are not defined. We hypothesized that alterations in multisensory processing are responsible for postconcussive visual motion sensitivity, are detectable on fMRI, and correlate with symptom severity.

Materials and methods

Twelve patients with subacute postconcussive visual motion sensitivity and 10 healthy control subjects underwent vestibular testing and a novel fMRI visual-vestibular paradigm including 30-second "neutral" or "provocative" videos. The presence of symptoms/intensity was rated immediately after each video. fMRI group-lev

SUBMITTER: Allen JW 

PROVIDER: S-EPMC8115356 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature