Integration and Interactions Between Visual and Proprioceptive Feedbacks

Centre Hospitalier Universitaire de Saint Etienne38 enrolled

Overview

Mental imagery is a rehabilitation technique for stroke patients, involving the mental representation of movement. Recent technical advancements have enabled the use of visual, proprioceptive, and mixed feedback to enhance motor stimulation. Currently, all post-stroke patients receive these techniques indiscriminately. This study aims to demonstrate differences in the integration of visual and proprioceptive feedback in stroke patients and understand the determinants based on the affected brain area. Patients with motor disabilities will perform motor imagery tasks with various feedback types while their cortical activity is recorded using EEG. EEG data for each type of feedback will be correlated with the lesion area in order to better understand the ongoing mechanisms.

Study Type

INTERVENTIONAL

Allocation

Purpose

BASIC_SCIENCE

Masking

NONE

Enrollment

Conditions

Hemiparetic Stroke

Interventions

Visit 1 : Followed by 30 movements of Paretic arm wrist extension with 4 randomized experimental conditions (Vision alone, Vibration alone, Vision + Vibration, No feedback), with EEG monitoring. Measurement of movement perception feeling for each condition. Visit 2 : 30 movements of Paretic arm wrist extension with 4 randomized experimental conditions (Vision alone, Vibration alone, Vision + Vibration, No feedback), with EEG monitoring. Measurement of movement perception feeling for each condition.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 80 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Hemiplegic subjects : Male or female, aged 18 to 80 years, first ischemic or hemorrhagic stroke, having signed the written consent and affiliated or entitled to a social security scheme Exclusion Criteria: * Severe cognitive impairment, severe Aphasia or severe neglect that impair ability to understand instructions or to execute tasks

Outcomes

Primary Outcomes

EEG beta desynchronization

Differences in the EEG beta desynchronization over motor-cortex across the types of feedbacks.

Time frame: Day 1

Secondary Outcomes

Alpha Band

Alpha Band desynchronization over motor cortex

Time frame: Day 1

Occipital alpha band

Occipital alpha band modulations

Time frame: Day 1

Beta rebound

Beta rebound (Event related synchronization)

Time frame: Day 1

Parietal beta-band

Parietal beta-band desynchronization

Time frame: Day 1

Perception of movements

The intensity of the perception of movements using a visual analogue scale and the objective measurement of perceived movement angle reproduced by the healthy hand's and Visual analogic scale

Time frame: Day 1

Integration and Interactions Between Visual and Proprioceptive Feedbacks

Overview

Conditions

Interventions

Eligibility

Locations (1)

Outcomes

Primary Outcomes

Secondary Outcomes

Central Contacts