The Connection Between Areas in the Brain of Blind Patients - Tabular View

Tracking Information
First Received Date ^ICMJE	November 3, 1999
Last Updated Date	March 3, 2008
Start Date ^ICMJE	April 1999
Primary Completion Date
Current Primary Outcome Measures ^ICMJE
Original Primary Outcome Measures ^ICMJE
Change History	Complete list of historical versions of study NCT00001926 on ClinicalTrials.gov Archive Site
Current Secondary Outcome Measures ^ICMJE
Original Secondary Outcome Measures ^ICMJE

Descriptive Information
Brief Title ^ICMJE	The Connection Between Areas in the Brain of Blind Patients
Official Title ^ICMJE	Connectivity of Occipital and Somatosensory Cortical Areas in Blind Subjects
Brief Summary	The purpose of this study is to test the belief that specific areas of the brain are connected differently in blind patients than patients with sight. In addition, the study will examine the different anatomical connections between brain areas of patients who became blind early in life versus patients who became blind later.
Detailed Description	The purpose of this protocol is to test the hypothesis that the anatomical connectivity of occipital and somatosensory areas in early blind subjects differs from that in subjects who became blind later in life and from that in sighted volunteers.
Study Phase
Study Type ^ICMJE	Observational
Study Design ^ICMJE
Condition ^ICMJE	Blindness Brain Mapping Healthy
Intervention ^ICMJE	Drug: O15 Device: Cadwell rTMS
Study Arms / Comparison Groups
Publications *	Cohen LG, Bandinelli S, Findley TW, Hallett M. Motor reorganization after upper limb amputation in man. A study with focal magnetic stimulation. Brain. 1991 Feb;114 ( Pt 1B):615-27. Fuhr P, Cohen LG, Dang N, Findley TW, Haghighi S, Oro J, Hallett M. Physiological analysis of motor reorganization following lower limb amputation. Electroencephalogr Clin Neurophysiol. 1992 Feb;85(1):53-60. Kew JJ, Ridding MC, Rothwell JC, Passingham RE, Leigh PN, Sooriakumaran S, Frackowiak RS, Brooks DJ. Reorganization of cortical blood flow and transcranial magnetic stimulation maps in human subjects after upper limb amputation. J Neurophysiol. 1994 Nov;72(5):2517-24.
* Includes publications given by the data provider as well as publications identified by National Clinical Trials Identifier (NCT ID) in Medline.

Recruitment Information
Recruitment Status ^ICMJE	Completed
Enrollment ^ICMJE	45
Completion Date	November 2003
Primary Completion Date
Eligibility Criteria ^ICMJE	INCLUSION CRITERIA: Subjects with late blindness. Subjects with early blindness. Sighted volunteers. Age between 18 and 65 years. EXCLUSION CRITERIA: Subjects with personal or family history of seizures or other neurological or demyelinating disorders. Pregnant women tested after urine pregnancy test. Subjects with metal in the cranium except mouth. Subjects with intracardiac lines and implanted medication pumps. Subjects with increased intracranial pressure as evaluated by clinical means. Subjects with cardiac pacemakers. Intake or neuroleptics. Subjects with blindness secondary to degenerative CNS diseases.
Gender	Both
Ages
Accepts Healthy Volunteers	Yes
Contacts ^ICMJE	Contact information is only displayed when the study is recruiting subjects
Location Countries ^ICMJE	United States

Administrative Information
NCT ID ^ICMJE	NCT00001926
Responsible Party
Study ID Numbers ^ICMJE	990031, 99-N-0031
Study Sponsor ^ICMJE	National Institute of Neurological Disorders and Stroke (NINDS)
Collaborators ^ICMJE
Investigators ^ICMJE
Information Provided By	National Institutes of Health Clinical Center (CC)
Verification Date	November 2003
^ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP