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Updated: Jul 7, 2026
13:51
Cross-Modal Multivariate Pattern Analysis
Published on: November 9, 2011
Language affects patterns of brain activation associated with perceptual decision
Li Hai Tan1, Alice H D Chan, Paul Kay
1Department of Linguistics, State Key Laboratory of Brain and Cognitive Sciences, and Department of Diagnostic Radiology, University of Hong Kong, Pokfulam Road, Hong Kong.
Summary
Language influences brain activity during visual perception. Neuroimaging reveals language areas are active during perceptual decision-making, supporting the Whorf hypothesis.
Area of Science:
- Cognitive Neuroscience
- Psycholinguistics
- Neuroimaging
Background:
- The Whorf hypothesis posits that language shapes perception and thought.
- Previous studies showed linguistic effects on behavior but not direct brain activity.
- The neural basis of language's influence on perceptual decision-making remained unclear.
Purpose of the Study:
- To investigate if language processing brain regions are involved in perceptual decision.
- To provide neuroimaging evidence for the Whorf hypothesis concerning perception.
Main Methods:
- Functional magnetic resonance imaging (fMRI) was used to monitor brain activity.
- Participants performed a perceptual discrimination task on colored squares.
- A localizer experiment identified brain regions involved in word-finding for colors.
Main Results:
- Both easy-to-name and hard-to-name colors activated overlapping visual and frontal regions.
- Discriminating easy-to-name colors showed significantly greater activation in language-related areas (left posterior superior temporal gyrus, inferior parietal lobule) compared to hard-to-name colors.
- These language-associated regions were also implicated in the perceptual decision task.
Conclusions:
- Brain regions responsible for language processing directly participate in visual perceptual decision.
- This study provides neuroimaging evidence supporting the Whorf hypothesis.
- Language influences how the brain processes visual information during decision-making.
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