neurophonia

neu·ro·pho·ni·a

(nū'rō-fō'nē-ă),
A spasm or tic of the muscles of phonation causing involuntary sounds or cries.
[neuro- + G. phōnē, voice]

neurophonia

(nū″rō-fō′nē-ă) [Gr. neuron, nerve, + phone, voice]
A tic or spasm of the muscles of speech resulting in an involuntary cry or sound.