Hypertensive Hemorrhage of Right Parietal Lobe
Conditions
Keywords
galvanic vestibular stimulation, right parietal lobe lesion, egocentric space
Brief summary
Right posterior parietal cortex is involved in spatial cognition. Blindfolded patients suffering right posterior parietal lesions fail to update their own position after a body rotation. Right cathodal galvanic vestibular stimulation activates right posterior parietal cortex and reduces symptoms of spatial neglect, another disability frequently encountered after right posterior parietal lesion. The aims of this study are to confirm posterior parietal involvement in automatic updating of body-centered spatial relationships and to evaluate therapeutic effects of galvanic vestibular stimulation. Performances of three groups of adults are compared before and during galvanic vestibular stimulation on a pointing task: a healthy control group, a brain-injured control group with stroke lesions sparing right posterior parietal cortex and a group of stroke patients with right posterior parietal lesions.
Interventions
Sponsors
University of Versailles
Centre d'Investigation Clinique et Technologique 805
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
Yes
Inclusion criteria
* patient with right posterieur parietal lobe lesion * patient with cerebral vascular stroke * healthy volonteers Age greater than or equal to 18 written informed consent
Exclusion criteria
* patient's refusal to participate to the study * inability to cooperate * cognitive trouble * epilepsy
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| deviation from target score | 30 min | difference in degree between the actual and target score |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| deviation from target straight ahead | 30min | difference in degree between the actual straight ahead and target score |
| deviation rightward line bisection | 30min | percentage difference between actual and target score on test deviation right line bisection |
Countries
France
Outcome results
None listed