Please select the eligibility criteria that correspond to the clinical trial below.
Title: Efficacy Basics of Bihemispheric Motorcortex Stimulation After Stroke
Brief Summary: The aim of the study is to investigate whether the combination of bihemispheric ("dual") transcranial direct current stimulation (tDCS) and motor training on 5 consecutive days facilitates motor recovery in chronic stroke. Results will be compared to a matched group of patients undergoing anodal tDCS as well as a control group receiving sham tDCS. Functional and structural magnetic resonance imaging (MRI) before/after the intervention and during a 3 month follow-up will help investigating neural correlates of expected changes in motor function of the affected upper extremity.


Options:
A: Inclusion Criteria:

* chronic stroke (\>6 months after stroke)
* age: 18 to 80 years
* non-hemorrhagic or hemorrhagic stroke

Exclusion Criteria:

* more than 1 stroke
* severe alcohol disease or drug abuse, severe psychiatric disease like depression or psychosis
* severe cognitive deficits
* severe untreated medical conditions
* other neurologic diseases
* severe microangiopathy
* pregnancy
B: Inclusion Criteria:

* All subjects must be between the ages of 18-90 and must not be pregnant.
* Patients volunteer to participate in the study, with a written informed consent signed
* Affiliation to a national health insurance program
* First-time clinical ischemic or hemorrhagic cerebrovascular accident - evidenced by a radiological (or physician's) report
* Contralesional motor deficit
* Lesion sparing primary motor cortex
* Stroke onset \>1 month and \<6 months prior to study enrollment

Exclusion Criteria:

* Coexistent major neurological or psychiatric disease as to decrease number of confounders
* History of epilepsy before stroke (or episodes of seizures within the last six months)
* Any substantial decrease in alertness, language reception, or attention that might interfere with understanding instructions for motor testing
* Subjects with global aphasia and deficits of comprehension
* Excessive pain in any joint of the paretic extremity (VAS\>4)
* Contraindications to Tdcs : metal in the head, implanted brain medical devices
* Coexistent major neurological or psychiatric disease as to decrease number of confounders
* A history of significant alcohol or drug abuse in the prior 6 months
* Anyone who is currently taking or who has taken anti-malarial treatment in the last 72 hours
* Subjects may not have already received constraint induced motor therapy and/or tDCS treatment for stroke
* Pregnancy
C: Inclusion Criteria:

* stroke onset \>3 months prior to study enrollment
* subject has at least 10 degrees mobility over wrist, thumb and fingers on the affected side
* subject can move, stand up and stand firmly with constrained healthy hand
* subject can perform training 6 hours daily in 2 weeks
* subject is able to understand instructions and be able to cooperate

Exclusion Criteria:

* pregnancy
* contraindications to MRI of brain
* epilepsy, major psychiatric disease
* excessive pain that prevents training
* history of other diseases resulting decreased mobility of affected upper limb
D: Inclusion Criteria:

* Ischemic or hemorrhagic stroke onset 3 - 9 weeks before the recruiting, confirmed by computed tomography or magnetic resonance imaging.
* Moderate to severe motor impairment of an upper limb, defined as a score between 7 - 42 on the Upper Limb Subscale of Fugl Meyer Assessment of Sensorimotor Recovery after stroke.
* Ability to provide written informed consent (patient ou legal representative)
* Ability to comply with the schedule of interventions and evaluations in the protocol.

Exclusion Criteria:

* Severe spasticity at the paretic elbow, wrist or fingers, defined as a score of \> 3 on the Modified Ashworth Spasticity Scale.
* Upper limb plegia
* Uncontrolled medical problems such as end-stage cancer or renal disease
* Pregnancy
* Seizures, except for a single seizure during the first week post stroke
* Pacemakers
* Other neurological disorders such as Parkinson's disease
* Psychiatric illness including severe depression
* Aphasia ou severe cognitive deficits that compromise comprehension of the experimental protocol or ability to provide consent.
* Hemineglect
* Drugs that interfere on cortical excitability, except for antidepressants
* Cerebellar lesions

Answer: A