Table 2.

Frequency and types of phonic and motor stereotypies.

Categories of Phonic Stereotypies	Frequency	Categories of Motor Stereotypies	Frequency
Phonic—total	83.0%	Motor—total	97.2%
Single phonemes	11.4%	Face	42.9%
Noncommunicative vocalizations	60.0%	Head/trunk/shoulders	54.3%
Syllables	37.1%	Hand/finger	34.3%
Echolalic stereotypies	22.9%	Hand/finger with object	54.3%
Complex sounds	11.4%	Arm/leg	57.1%
		Gaze	37.1%