Can you tell someone’s emotional state from an MRI?
Scientific American - 03/06/2017
Not everyone agrees, however, that studying emotions this way—as averages of many people’s brains while they undergo a stimulus—makes sense. Psychology professor Lisa Feldman Barrett of Northeastern University and author of How Emotions Are Made (Houghton Mifflin Harcourt, 2017), who was not involved in either study, says that so far no one has clearly demonstrated that patterns taken from one study can be used to recognize the same emotion in another group of people provoked by a different stimulus. Such brain patterns, Barrett says, are just statistical summaries, not unique signatures that exist only when someone has a certain experience.