Dr. Smith conducted a research study involving schizophrenic adults in which her looked at their facial expressions in home movies taken when they were children. He was trying to determine if the development of schizophrenia could be predicted by facial expressions showing limited emotional reactions. This research study focused on the negative symptom called .

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Affective flattening is the negative symptom of schizophrenia characterized by a lack of emotional expression or limited emotional reactions. Dr. Smith's study examined the facial expressions of schizophrenic adults in childhood home movies to see if affective flattening could be detected early on and used as a predictor of schizophrenia development.

Dr Smith Conducted a Research Study Involving Schizophrenic Adults in Which