Hyperkinetic dysarthria is the result of damage to inhibitory proceses of the extraphraidal system, whereas hypokinetic dysarthria results from lesion to excitatory mechanisms.

• 运动减退的构音困脑是在锥体外神经系统中抑制的过程所损害的结果，然而运动减退的发音不良却由于对刺激机制的损害而产生的。