Categorization processes in emotion expression recognition: The roles of language and essentialism

We examined categorical processing biases in the perception and recognition of facial expressions of emotion across two studies. In both studies, participants first learned to discriminate between two ambiguous facial expressions of emotion selected from the middle of a continuous array of blended expressions (i.e., an array created from morphing images of two facial expressions together, with still images selected in equidistant increments). Participants were then asked to recognize the specific expressions they were trained to discriminate. In Study 1, target expressions labeled with emotion words (e.g., more angry face) during discrimination and recognition tasks were misremembered as more perceptually distinct from one another and therefore more perceptually similar to the stereotypical expression for their labeled emotion category than they were in reality. Critically, in Study 2, these recognition biases were significantly reduced or absent in conditions where the target expressions were not labeled with emotion words (e.g., Face A), demonstrating the role of emotion words in promoting categorical processing biases in emotion recognition. Moreover, in the absence of emotion labels, peoples' beliefs about the nature of emotion categories were related to the extent to which they employed categorical processing during emotion perception and recognition. Specifically, people with more essentialist beliefs about emotion categories-believing emotion categories are more innate, biologically-based, and immutable-exhibited more pronounced categorical processing biases during emotion recognition. Findings shed light on the critical role of language and cognition in constructing emotion and add to empirical findings on categorical processing in emotion perception. (PsycInfo Database Record (c) 2025 APA, all rights reserved).