A strong indication that some facial expressions of emotion are biologically determined comes from __________
A) observation of chimpanzee and gorilla facial expressions.
B) research with children who have been blind and deaf since birth.
C) research with children from different socioeconomic levels.
D) prenatal tests.

Question

Quizplus · Accepted Answer

Research with children who have been blind and deaf since birth supports the idea that facial expressions of emotion are biologically determined. Because these children have never had the opportunity to observe others' facial expressions, their consistent display of the same facial expressions for the same emotions suggests that they are innate rather than learned.

A Strong Indication That Some Facial Expressions of Emotion Are