Speech mechanisms may have evolved from more ancient systems controlling gestures of the face and hands, in agreement with
A) the motor theory of language.
B) the connectionist model of aphasia.
C) observations of split-brain patients.
D) deficits seen in conduction aphasia.

Question

Quizplus · Accepted Answer

The motor theory of language proposes that speech mechanisms evolved from more ancient systems controlling gestures of the face and hands. This theory suggests that the evolution of language involved adaptations of pre-existing motor systems for gestural communication.

Speech Mechanisms May Have Evolved from More Ancient Systems Controlling