[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"post-concussive-syndrome-chronic\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:post-concussive-syndrome-chronic":28},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":4,"eligibilityCriteria":15,"healthyVolunteers":11,"sex":16,"minAge":17,"maxAge":18,"enrollmentInfo":19,"targetDuration":4,"studyType":22,"phases":23,"briefSummary":25,"conditions":26,"keywords":30,"overallStatus":35,"whyStopped":4,"lastUpdateSubmitDate":36,"lastUpdatePostDateStruct":37,"startDateStruct":40,"completionDateStruct":42,"leadSponsor":44,"locationsCount":5},"100605747","symptom-exacerbation-following-mental-imagery-in-patients-with-persistent-post-concussive-symptoms-100605747",false,"NCT07166536","Effect of Mental Imagery in Patients With Persistent Post-concussion Symptoms","Effect of Mental Imagery on Headache and Dizziness in Patients With Persistent Post-concussion Symptoms","Inclusion Criteria:\n\n1. Current patients of Reut Rehabilitation Hospital or individuals who were discharged from the hospital within the past 12 months.\n2. Diagnosis of mild Traumatic Brain Injury, concussion, blast injury, or cervical whiplash injury.\n3. More than 3 months since the event.\n4. Presence of headaches and\u002For dizziness that began after the injury and have persisted continuously or intermittently.\n5. Exclusion of other potential causes of headaches, such as non-healed fractures, chronic inflammation\u002Finfection, increased intracranial pressure, or meningeal injury.\n6. Headache intensity of at least 3\u002F10 on the VAS scale.\n\nExclusion Criteria:\n\n1. Significant cognitive impairment preventing informed consent (Mini-Mental State Examination score \\\u003C20 or Montreal Cognitive Assessment score \\\u003C20, as per IRB requirements).\n2. Diagnosed central neurological conditions such as multiple sclerosis, Parkinson's disease, stroke, or brain tumor.\n3. Presence of known pyramidal or extrapyramidal neurological signs.\n4. Significant language impairment interfering with communication.\n5. Psychiatric disorders significantly affecting communication.\n6. Use of vestibular-suppressant medication (e.g., Cinnarizine) with an inability or unwillingness to discontinue treatment 24 hours prior to testing.\n\nWithdrawal Criteria:\n\n1\\. Oculomotor dysfunction affecting multiple oculomotor functions.","ALL","18 Years","74 Years",{"count":20,"type":21},60,"ESTIMATED","INTERVENTIONAL",[24],"NA","Background: Mild Traumatic Brain Injury (mTBI) often results in persistent emotional, cognitive, and somatic symptoms-such as headaches and dizziness. These symptoms impose a significant burden, yet their underlying mechanisms remain unclear.\n\nPredictive processing theories suggest that persistent symptoms may result from learned perceptual errors, particularly in individuals with high negative affectivity. This framework may help explain ongoing persistent post-concussive symptoms (PPCS) in the absence of identifiable pathology, which have been linked to various psychological factors.\n\nMental imagery (MI) is thought to engage similar predictive processes. There is evidence that MI of symptom-triggering movements may exacerbate symptoms in individuals with chronic somatic conditions. However, this phenomenon has not been studied in PPCS patients. Investigating symptom provocation through MI may yield novel insights into the neuropsychological mechanisms sustaining PPCS and potentially contribute to the development of therapeutic tools for this population.\n\nObjectives:\n\n1. Documenting the exacerbation of headache and dizziness following provocative mental imagery (imagery of movements or scenarios that elicit these symptoms in real life) in patients with PPCS.\n2. Comparing changes in headache and dizziness after provocative MI versus neutral MI (imagery of movements or scenarios that do not elicit these symptoms in real life).\n3. Comparing patients who experience symptom exacerbation following mental imagery to those who do not.\n4. Describing associations between symptom exacerbation and negative affectivity, anxiety, depression, catastrophizing, and lower daily functioning.\n\nMethods: A single-group, open-label experimental provocation study is being conducted in adult patients with persistent post-concussive symptoms following mild traumatic brain injury. Each participant undergoes all imagery conditions, with the order of provocative and neutral mental imagery stimuli randomized within participants. Participants are recruited by convenience sampling from the computerized patient database of Reuth Rehabilitation Hospital according to the inclusion and exclusion criteria.\n\nAfter signing an informed consent form, participants will be invited to attend 2 to 3 sessions, each lasting 1 to 2 hours. During these sessions, a licensed physiotherapist will conduct a comprehensive clinical assessment, including: Completion of self-report questionnaires; A vestibular examination; Anamnestic interview and clinical assessment of individual movement- and scenario-related triggers for dizziness and headaches; Symptom provocation testing using mental imagery of the identified triggers.",[27,28,29],"Mild Traumatic Brain Injury, Concussion","Post Concussive Syndrome, Chronic","Post Traumatic Headache",[31,32,33,34],"mild traumatic brain injury","Persistent Post-Concussion Symptoms","mental imagery","concussion","RECRUITING","2026-08-10",{"date":38,"type":39},"2026-08-12","ACTUAL",{"date":41,"type":39},"2025-09-07",{"date":43,"type":21},"2026-12-31",{"name":45,"class":46},"Reuth Rehabilitation Hospital","OTHER"]