Repetitive self correction is commonly used by Aphasic people of conduction aphasia. Complications included motor weakness, epilepsy, sensory aphasia and "word deafness". Speech is fluent and receptive language is not impaired in someone with anomic aphasia. Alzheimer's disease may present with either fluent aphasia or expressive aphasia. Procedural memory is affected by Broca's aphasia. In 1997, he had a stroke which left him with paralysis and expressive aphasia. Severity of expressive aphasia varies among patients. Self-monitoring is typically well preserved in patients with Broca's aphasia. A person with expressive aphasia will exhibit effortful speech. No method is available to completely cure anomic aphasia. Other symptoms that may be present in expressive aphasia include problems with word repetition. Damage caused to Wernicke's area results in receptive, fluent aphasia. Informal assessments aide in the diagnosis of patients with suspected aphasia. The electrical stimulation seemed to enhance language training outcome in patients with chronic aphasia. It is one subset of a larger family of disorders known collectively as aphasia.