Anticipates, stabilize head in midline1
Head righting1
Trunk extension1
Face side weight shift1
Ring sitting1
Sits with extension of upper back1
May ring sit unsupported for several seconds1
Supported sitting for 10-15 minutes14
Head-righting when tilted to side1
Sits supported for 10-15 minutes; visually directed reach
In sitting, anticipates and stabilizes head in midline; may sit unsupported for several seconds before falling