Usually a result of damage to the language centres of the brain.
Types of aphasia:
- [Broca's aphasia]? (expressive aphasia)
- [Wernicke's aphasia]? (receptive aphasia)
- [Nominal aphasia]? ([anomic aphasia]?)
- [Global aphasia]?
- [Conduction aphasia]?
and a few weirder varieties:
- [Transcortical Motor Aphasia]?
- [Subcortical Motor Aphasia]?
- [Transcortical Sensory Aphasia]?
- [Subcortical Sensory Aphasia]?