期刊
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
卷 111, 期 18, 页码 E1918-E1923出版社
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1323158111
关键词
embodied cognition; lexical semantics; magnetoencephalography; MEG; mismatch negativity
资金
- Medical Research Council, United Kingdom [MC-A060-5PQ90, MR/K005464/1]
- Higher School of Economics, Moscow [TZ 76]
- Lundbeck Foundation, Denmark
- Lundbeck Foundation [R140-2013-12951] Funding Source: researchfish
- Medical Research Council [MR/K005464/1] Funding Source: researchfish
- MRC [MR/K005464/1] Funding Source: UKRI
To address the hotly debated question of motor system involvement in language comprehension, we recorded neuromagnetic responses elicited in the human brain by unattended action-related spoken verbs and nouns and scrutinized their timecourse and neuroanatomical substrates. We found that already very early on, from similar to 80 ms after disambiguation point when the words could be identified from the available acoustic information, both verbs and nouns produced characteristic somatotopic activations in the motor strip, with words related to different body parts activating the corresponding body representations. Strikingly, along with this category-specific activation, we observed suppression of motor-cortex activation by competitor words with incompatible semantics, documenting operation of the neurophysiological principles of lateral/surround inhibition in neural word processing. The extremely early onset of these activations and deactivations, their emergence in the absence of attention, and their similar presence for words of different lexical classes strongly suggest automatic involvement of motor-specific circuits in the perception of action-related language.
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