tDCS Associated to Blindsight Rehabilitation for the Treatment of Homonymous Hemianopsia (TABRTHH)
Hemianopsia
About this trial
This is an interventional treatment trial for Hemianopsia focused on measuring tDCS, Visual field, Stroke
Eligibility Criteria
Inclusion Criteria:
- The subject is able to give his informed consent
- Stroke
- Hemianopsia brain damage documented by means of TAC or RMN
- Hemianopsia diagnosed by means automated visual field and Neurological Evaluation
- Time from lesion at least six months
- normal or corrected-to-normal visual acuity
Exclusion Criteria:
- Presence of Ophthalmologic neuropsychologic or psychiatric pathology
- Global cognitive deficit,
- Presence of other neurological pathology
- Presence of cardiac peacemaker
- Presence metallic or electronic items in the head or in the body
- Story/familiarity of epilepsy, taking medications that can induce epileptic crisis
- Severe heart disease
- History of high alcohol consumption
- Pregnancy
Sites / Locations
- Polo universitario presso I.C. Zucchi
Arms of the Study
Arm 1
Arm 2
Experimental
Active Comparator
Blindsight training associated to tDCS
Blindsight training alone
During the blindsight training (one-hour time), the patient is asked to maintain central fixation and is exposed to visual stimuli in his blind hemifield. The patient task is detection and/or discrimination of stimuli. During each session the patient is subjected to around 700 different stimuli variously associated in space and/or time. tDCS stimulation start at the beginning of the rehabilitation session, and continue for 30 min, during treatment. Anode is placed over the parieto-occipital cortex. The cathode is placed in the contralateral supraorbital position.
During the blindsight training (one-hour time), the patient is asked to maintain central fixation and is exposed to visual stimuli in his blind hemifield. The patient task is detection and/or discrimination of stimuli. During each session the patient is subjected to around 700 different stimuli variously associated in space and/or time.