Blind Infants Tend to Show the Same Facial Expressions as Do

question 33

Multiple Choice

Blind infants tend to show the same facial expressions as do sighted infants,but as blind infants grow older,their expressions become less animated.This indicates that facial expressions ____.

• A) are innate
• B) are learned
• C) may be innate but are maintained by operant shaping
• D) are the result of imitation

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Definitions:

Elevate

To lift something up or to raise to a higher position or level.

Lateral Epicondyle

The Lateral Epicondyle is a bony prominence on the outer side of the elbow, to which the tendons of the muscles that extend the wrist and fingers are attached.

Proximal Phalanx

The bone in the fingers or toes that is closest to the hand or foot, and forms the base of each digit.

Extensor Digiti Minimi

A muscle in the forearm that extends the little finger and, by its action, contributes to the extension and abduction of the hand at the wrist joint.