Does categorical perception in the left hemisphere depend on language?

Journal of Experimental Psychology. General
Kevin J Holmes, Phillip Wolff

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.

Citations

Jan 10, 2014·Psychonomic Bulletin & Review·Jessica A Collins, Ingrid R Olson
Dec 19, 2014·Frontiers in Psychology·Jonathan R FolsteinIsabel Gauthier
Oct 10, 2013·The Behavioral and Brain Sciences·Kevin J Holmes, Phillip Wolff
Jun 3, 2016·Frontiers in Psychology·Alexandra GrandisonIan R L Davies
Jul 13, 2016·Cognitive Science·Kevin J Holmes, Terry Regier
Dec 8, 2015·Scientific Reports·Jolien C FranckenFloris P de Lange
Dec 7, 2019·PloS One·Fernanda Pérez-Gay JuárezStevan Harnad
Jun 2, 2020·Cognitive Neuropsychology·Panos Athanasopoulos, Aina Casaponsa
Jan 5, 2019·Cognitive, Affective & Behavioral Neuroscience·Martin Maier, Rasha Abdel Rahman
Oct 6, 2020·Trends in Cognitive Sciences·Gary LupyanAndy Clark
Jun 4, 2019·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Katarzyna Siuda-KrzywickaChristoph Witzel
May 8, 2021·Scientific Reports·Cristina BausAlbert Costa
May 27, 2014·Neuroscience and Biobehavioral Reviews·Ineke J M van der HamBruno Laeng
Aug 6, 2021·Frontiers in Neuroscience·Mengdan SunXuemin Zhang

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