One set of these disorders are usually classified as global, conduction, expressive, or receptive.
Several of these disorders are caused by mutations to the FOXP2 gene. These disorders were the main focus of Norman Geschwind, who discovered one resulting from damage to the arcuate fasciculus. Two somewhat rare disorders of this kind are classified as "transcortical motor" and "transcortical sensory." These disorders were first studied in Lelong and Leborgne. One set of these disorders are usually classified as global, conduction, expressive, or receptive. Patients with these disorders oftenexhibit (*) echolalia. These disorders are usually caused by damage to the left hemisphere of the brain. An early patient with one of these disorders was nicknamed "Tan." They include anomia and alexia, and they can caused by damage to Broca's or Wernicke's areas. For 10 points, name these disorders that include aphasias, in which patients have difficulty producing words.
Several of these disorders are caused by mutations to the FOXP2 gene.
language disorders [or speech disorders; accept aphasias until it is read]