Editing Instinct (section)

==== Facial expressions ====
An example of what Wundt studied to arrive at his conclusions regarding unconscious processes includes the facial expressions babies made in response to the sensations of sweet, sour, and bitter tastes.<ref name=":1" /> He concluded these facial expressions were the result of the babies trying to avoid unpleasant emotions because there was something unpleasant in their mouths, and that these instincts (which he uses interchangeably with reflexive movements) only became innate because past generations learned it and it benefited their survival.<ref name=":1" />