Altered white matter connectivity associated with visual hallucinations following occipital stroke.

ABSTRACT:

Introduction

Visual hallucinations that arise following vision loss stem from aberrant functional activity in visual cortices and an imbalance of activity across associated cortical and subcortical networks subsequent to visual pathway damage. We sought to determine if structural changes in white matter connectivity play a role in cases of chronic visual hallucinations associated with visual cortical damage.

Methods

We performed diffusion tensor imaging (DTI) and probabilistic fiber tractography to assess white matter connectivity in a patient suffering from continuous and disruptive phosphene (simple) visual hallucinations for more than 2 years following right occipital stroke. We compared these data to that of healthy age-matched controls.

Results

Probabilistic trac

SUBMITTER: Rafique SA 

PROVIDER: S-EPMC5991596 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature