Neurostimulation for the Treatment of Post-Stroke Aphasia

Individuals with aphasia (assessed using the Boston Diagnostic Aphasia Examination) who perform the Naming Task in the range of 10%-60% accuracy will be included in the study. The overall baseline score in the Naming Task will be estimated from the two baseline measurements. Inclusion Criteria: * diagnosis of aphasia: Broca's or mixed (based on the assessment of a Speech Language Pathologist). * presence of a focus of injury in the left hemisphere (within one hemisphere only) as a result of the first ischemic or hemorrhagic stroke (based on CT/MRI examination); * chronic stage of the disease - time since the stroke occurred over 6 months. * ability to achieve an accuracy in the Naming Task of 10-60%. * 18-80 years * right-handedness before the stroke. * ability to give informed written consent. * fluency in English. Exclusion Criteria: * severe cognitive, auditory or visual impairment that would preclude cognitive and language testing - inability to follow a two-step command. * presence of metal implants in the skull. * presence of major untreated or unstable psychiatric disease. * history of epilepsy or seizures. * ongoing medication that increases the risk of epileptic seizures. * presence in the body of cardiac stimulator, pacemaker or vagus nerve stimulator (implanted). * history of speech, language, hearing, or intellectual disability during childhood. * pregnancy (based on declarations) Exclusion criteria during the trial: * high intolerance to stimulation. * occurrence of an epileptic seizure. * other previously absent neurological or mental symptoms Withdrawal criteria: * high intolerance to stimulation (participants experience severe discomfort during stimulation); * occurrence of an epileptic seizure; * other previously absent neurological, physical or mental symptoms.