Nctid:
NCT00001782
Payload:
{"hasResults"=>false, "derivedSection"=>{"miscInfoModule"=>{"versionHolder"=>"2024-10-21"}, "conditionBrowseModule"=>{"meshes"=>[{"id"=>"D000003638", "term"=>"Deafness"}, {"id"=>"D000034381", "term"=>"Hearing Loss"}], "ancestors"=>[{"id"=>"D000006311", "term"=>"Hearing Disorders"}, {"id"=>"D000004427", "term"=>"Ear Diseases"}, {"id"=>"D000010038", "term"=>"Otorhinolaryngologic Diseases"}, {"id"=>"D000012678", "term"=>"Sensation Disorders"}, {"id"=>"D000009461", "term"=>"Neurologic Manifestations"}, {"id"=>"D000009422", "term"=>"Nervous System Diseases"}], "browseLeaves"=>[{"id"=>"M24420", "name"=>"Hearing Loss", "asFound"=>"Deafness", "relevance"=>"HIGH"}, {"id"=>"M6840", "name"=>"Deafness", "asFound"=>"Deafness", "relevance"=>"HIGH"}, {"id"=>"M9400", "name"=>"Hearing Disorders", "relevance"=>"LOW"}, {"id"=>"M7601", "name"=>"Ear Diseases", "relevance"=>"LOW"}, {"id"=>"M12961", "name"=>"Otorhinolaryngologic Diseases", "relevance"=>"LOW"}, {"id"=>"M15490", "name"=>"Sensation Disorders", "relevance"=>"LOW"}, {"id"=>"M12404", "name"=>"Neurologic Manifestations", "relevance"=>"LOW"}], "browseBranches"=>[{"name"=>"Ear, Nose, and Throat Diseases", "abbrev"=>"BC09"}, {"name"=>"Nervous System Diseases", "abbrev"=>"BC10"}, {"name"=>"Symptoms and General Pathology", "abbrev"=>"BC23"}, {"name"=>"All Conditions", "abbrev"=>"All"}]}}, "protocolSection"=>{"designModule"=>{"studyType"=>"OBSERVATIONAL", "enrollmentInfo"=>{"count"=>30}}, "statusModule"=>{"overallStatus"=>"COMPLETED", "startDateStruct"=>{"date"=>"1998-03"}, "expandedAccessInfo"=>{"hasExpandedAccess"=>false}, "statusVerifiedDate"=>"1999-11", "completionDateStruct"=>{"date"=>"2000-12"}, "lastUpdateSubmitDate"=>"2008-03-03", "studyFirstSubmitDate"=>"1999-11-03", "studyFirstSubmitQcDate"=>"2002-12-09", "lastUpdatePostDateStruct"=>{"date"=>"2008-03-04", "type"=>"ESTIMATED"}, "studyFirstPostDateStruct"=>{"date"=>"2002-12-10", "type"=>"ESTIMATED"}}, "conditionsModule"=>{"keywords"=>["Deafness", "Hemisphere Dominance", "Language", "Plasticity", "Speech", "rTMS"], "conditions"=>["Brain Mapping", "Deafness", "Healthy"]}, "referencesModule"=>{"references"=>[{"pmid"=>"9448260", "type"=>"BACKGROUND", "citation"=>"Neville HJ, Bavelier D, Corina D, Rauschecker J, Karni A, Lalwani A, Braun A, Clark V, Jezzard P, Turner R. Cerebral organization for language in deaf and hearing subjects: biological constraints and effects of experience. Proc Natl Acad Sci U S A. 1998 Feb 3;95(3):922-9. doi: 10.1073/pnas.95.3.922."}, {"pmid"=>"1718723", "type"=>"BACKGROUND", "citation"=>"Cohen LG, Bandinelli S, Sato S, Kufta C, Hallett M. Attenuation in detection of somatosensory stimuli by transcranial magnetic stimulation. Electroencephalogr Clin Neurophysiol. 1991 Oct;81(5):366-76. doi: 10.1016/0168-5597(91)90026-t."}]}, "descriptionModule"=>{"briefSummary"=>"The human brain is made up of two halves called hemispheres. Each half of the brain is responsible for processing different kinds of information. Previous neuroimaging studies have shown that both the right and left hemispheres are involved when processing information given in American Sign Language (ASL). However, the study also showed that when processing spoken language, the left hemisphere was mostly involved.\n\nResearchers would like to find out more about how the brain processes American Sign Language (ASL). This study is designed to determine if the right hemisphere is necessary for normal understanding of ASL.", "detailedDescription"=>"The purpose of this protocol is to determine if the right hemisphere activation associated with perception of American Sign Language (ASL) in deaf subjects and in normal hearing individuals raised by deaf parents (who learned ASL before written English) is necessary for appropriate understanding of ASL."}, "eligibilityModule"=>{"sex"=>"ALL", "stdAges"=>["CHILD", "ADULT", "OLDER_ADULT"], "healthyVolunteers"=>true, "eligibilityCriteria"=>"Subject age between 18 and 65 years.\n\nAdult hearing offsprings of deaf parents.\n\nCongenitally deaf individuals.\n\nIntact hearing volunteers.\n\nNo subjects with personal or family history of seizures or other neurological or demyelinating disorders.\n\nNo pregnant women tested after urine pregnancy test.\n\nNo subjects with severe coronary disease.\n\nNo subjects with metal in the cranium except mouth.\n\nNo subjects with intracardiac lines and implanted medication pumps.\n\nNo subjects with increased intracranial pressure as evaluated by clinical means.\n\nNo subjects with cardiac pacemakers.\n\nNo subjects with an intake of neuroleptics."}, "identificationModule"=>{"nctId"=>"NCT00001782", "briefTitle"=>"Areas of Brain Responsible for Understanding American Sign Language", "organization"=>{"class"=>"NIH", "fullName"=>"National Institutes of Health Clinical Center (CC)"}, "officialTitle"=>"Hemispheric Lateralization of Language Receptive Function in the Deaf and in Hearing Individuals Who Learned ASL as First Language", "orgStudyIdInfo"=>{"id"=>"980082"}, "secondaryIdInfos"=>[{"id"=>"98-N-0082"}]}, "contactsLocationsModule"=>{"locations"=>[{"zip"=>"20892", "city"=>"Bethesda", "state"=>"Maryland", "country"=>"United States", "facility"=>"National Institute of Neurological Disorders and Stroke (NINDS)", "geoPoint"=>{"lat"=>38.98067, "lon"=>-77.10026}}]}, "sponsorCollaboratorsModule"=>{"leadSponsor"=>{"name"=>"National Institute of Neurological Disorders and Stroke (NINDS)", "class"=>"NIH"}}}}
