PSYC18H3 Chapter 2: Chapter 2 notes
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humans are descended from other species: we are not only closer to animals than had been thought, but we ourselves are animals. observed emotional expressions in nonhuman species, as well as in adult and infant humans (normal and abnormal) one of the first to use questionnaires. one of the first to use photographs of naturalistic and posed expressions to make scientific points. 2 questions that guide emotion researchers today. concluded that emotional expressions derive largely from habits that in our evolutionary or individual past had once been useful. Some actions occur in modern humans whether they are useful or not, and are t riggered involuntarily in circumstances analogous to those that had t riggered the original habits. emotional expressions showed the continuity of adult human behavioural mechanisms with those of lower animals and with those of infancy. he thought emotional expressions were like vestigial parts of our bodies.
