In all types of dysphasia there is a difficulty in the naming of objects. However, there is also a specific type of nominal dysphasia.
It is characterised by:
- objects presented to the patient cannot be named
- other aspects of speech are normal
- circumlocution may be present
This form of dysphasia may occur if there is a lesion of the left posterior temporoparietal area. Other possible causes include the intracranial pressure effects of a distant space-occupying lesion or encephalopathy.
The localising value of this form of dysphasia is of doubtful value.
Last reviewed 01/2018