DYSARTHRIA

neurological disease:

progressive bulbar palsy (motor neurone disease - rare)

general paralysis of the insane (syphilis; rare)

alcohol intoxication [cerebellar-type dysarthria]

cerebellar lesions [scanning / staccato speech, especially in ms]

cranial nerve palsies (VIIth, IXth, Xth or XIIth)

parkinsonism [slow, quiet, slurred, monotonous speech]

pseudobulbar palsy [spastic dysarthria; rarely monotonous and high-pitched]

mechanical defects:

painful mouth lesions

other causes:

deafness, esp. in childhood [loss of monitoring of speech]