Behavior and Behavior Mechanisms Clinical Trial
Official title:
Visuo-Tactile Integration and Body Ownership in the Human Brain
Verified date | September 2023 |
Source | Swiss Federal Institute of Technology |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
The present project exploits brain imaging and neuroscience robotics to investigate the role of quantifiable visual input on the relationship between visuo-tactile integration and body ownership (the feeling that "this" body belongs to "me").
Status | Completed |
Enrollment | 45 |
Est. completion date | September 12, 2023 |
Est. primary completion date | September 1, 2023 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years to 55 Years |
Eligibility | Inclusion Criteria: - general health - personal interest - age between 18 and 55 years old - fulfil standard guidelines for fMRI studies Exclusion Criteria: - history of seizures, epilepsy - specific medications or treatment - concomitant diseases (e.g. cardiopathy) - pregnancy - unexplained loss of consciousness - chronic headaches - neurological illnesses - head concussion, - presence of metal in the neck or head - implanted medical devices - drug abuse - inability to give consent |
Country | Name | City | State |
---|---|---|---|
Switzerland | ETH Zurich, Rehabilitation Engeineering Laboratory | Zurich |
Lead Sponsor | Collaborator |
---|---|
Swiss Federal Institute of Technology | Eye Hospital Jules Gonin, Psychiatric University Hospital, Zurich |
Switzerland,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Neuro-behavioral changes associated with vision-dependent alterations of body ownership, measured via brain activity (fMRI) | Analysis of objective measures of the RHI | Through study completion, an average of 2 years | |
Secondary | Subjective Experience via VAS scale | To understand the variations of the body ownership, Visual Analogic Scale, values 0 to 7, 0 = no illusory body ownership, 7 = strong illusory body ownership | Through study completion, an average of 2 years | |
Secondary | Automatic response (skin conductance) | Measure of the skin conductance response (SCR, measured in siemens) during experiment runs, which is an indirect measure of sympathetic activity.
Compare the blocks in which a pre-recorded visual threat (a video in which a hand is being pricked by a syringe needle) with baseline blocks and expect a higher SCR signal during "visual threat" blocks compared to the baseline. The SCR will be measured through a device connected to a dedicated laptop and electrodes that will be attached to the left index and middle fingers from participants. The SCR will be saved in log files and estimated a posteriori for each block using a general linear model and the weight regressors will be compared. There are no risks to the participants (since it is a passive measurement) the electrodes are compatible to the magnetic resonance environment. |
Through study completion, an average of 2 years |
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