Transcortical Motor Aphasia, also known as commissural dysphasia or white matter dysphasia, results from damage to the language-dominant hemisphere in the anterior superior frontal lobe. Transcortical Motor Aphasia is classified as a non-fluent aphasia characterized by a significantly reduced speech output but good auditory comprehension. Individuals with Transcortical Motor Aphasia also exhibit good repetition skills and can repeat long, complex phrases effortlessly and without error. However, spontaneous speech often is difficult. In addition, people with Transcortical Motor Aphasia may have difficulty with writing.
