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Updated: Jun 5, 2026
09:42
Stimulus-specific Cortical Visual Evoked Potential Morphological Patterns
Published on: May 12, 2019
Is the semantic category effect in the lateral temporal cortex due to motion property differences?
Nan Lin1, Xueming Lu, Fang Fang
1State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China. ybi@bnu.edu.cn
Neuroimage
|January 25, 2011
Summary
The posterior superior temporal sulcus (pSTS) processes biological motion, while the posterior middle temporal gyrus (pMTG) shows tool preference, but not specifically for mechanical motion verbs, suggesting other properties drive pMTG activation.
Area of Science:
- Neuroscience
- Cognitive Science
- Linguistics
Background:
- The posterior lateral temporal cortex (PLTC) is implicated in conceptual knowledge.
- Specific regions, pSTS and pMTG, are hypothesized to process different motion types: biological vs. mechanical.
Purpose of the Study:
- To investigate the role of pSTS and pMTG in processing biological and mechanical motion.
- To test if these motion-type specific activations extend to verbs and nouns.
Main Methods:
- fMRI study comparing brain activation patterns.
- Stimuli included verbs of biological motion (walk), mechanical motion (rotate), and low-motion events (ferment).
- Nouns from categories (animals, tools, buildings) were also analyzed.
Main Results:
- Replicated noun findings: pSTS showed higher activation for animals, pMTG for tools.
- pSTS responded to biological-motion verbs.
- pMTG did not show sensitivity to mechanical-motion verbs.
Conclusions:
- The pSTS appears to process biological motion concepts, including verbs.
- pMTG's preference for tools may stem from visual-motor representations, not solely mechanical motion.
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