Article2012

Does categorical perception in the left hemisphere depend on language?

52 citations0/0 files storedJournal of Experimental Psychology General

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Categorization, perception, and language Neurobiology of Language and Bilingualism Hemispheric Asymmetry in Neuroscience

Abstract

Categorical perception (CP) refers to the influence of category knowledge on perception and is revealed by a superior ability to discriminate items across categories relative to items within a category. In recent years, the finding that CP is lateralized to the left hemisphere in adults has been interpreted as evidence for a kind of CP driven by language. The present research challenges this conclusion. In 2 experiments, we found that CP for novel object categories was stronger in the left hemisphere than in the right, consistent with a role for language. However, both labeled and unlabeled categories gave rise to such effects, and to comparable degrees. These results suggest that left-lateralized CP does not depend on language but rather may reflect the left hemisphere's more general propensity for categorical processing. Our findings raise implications for research on linguistic relativity.

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References

1990Categorical Perception: The Groundwork of Cognition 2007Russian blues reveal effects of language on color discrimination 1994Influences of categorization on perceptual discrimination.2000Color categories are not universal: Replications and new evidence from a stone-age culture.2009Unconscious effects of language-specific terminology on preattentive color perception 2005Whorf hypothesis is supported in the right visual field but not the left 2009Language, thought, and color: Whorf was half right 1999Comparison in the Development of Categories

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2017Is the Lateralized Categorical Perception of Color a Situational Effect of Language on Color Perception?2020The Whorfian brain: Neuroscientific approaches to linguistic relativity 2014Does the semantic content of verbal categories influence categorical perception? An ERP study

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