An observational study in Syncope, Blood Injury Phobia and Autonomic Dysfunction, sponsored by Vanderbilt University. Withdrawn at 1 site in United States. Open to participants aged 18 Years to 30 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2013-01-09.
Sponsored by Vanderbilt University · Observational
We plan to study patient who faint in response to the sight of blood and compare them to healthy subjects who do not. We are going to use a special type of MRI scan (functional MRI) to determine if there are differences in brain activation in response to seeing bloody or gory pictures that occur before the fainting occurs.
Another aim of the study is to determine whether or not differences in personality traits among people with blood phobia is associated with differences in BOLD signal responses during fMRI.
226 studies on the registry are indexed under Syncope; 45 are open to participants now.
Browse Syncope studies →Vanderbilt University is the lead sponsor of 508 studies on the registry; 19 are open to participants now.
Of its 7 completed or terminated interventional studies of FDA-regulated products, 5 (71%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Healthy control subjects (who do not faint at the sight of blood)
Procedure: fMRI Scan
People who faint at sight of blood
Procedure: fMRI Scan
Subjects will undergo a functional MRI scan of the head lasting \~45 minutes. They will be repeatedly shown video clips of blood, other disgusting things, or are neutral.
fMRI BOLD signal
Time frame: Immediate
Blood Injection Symptoms Scale
Time frame: Single visit
Disgust Scale (Revised)
Time frame: Single Visit
This study is withdrawn, as verified in Jan 2013. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Vanderbilt University