The results showed that unilateral motor imagery of the lower limb elicited functionally opposing patterns, reflected in distinct spatial distributions of lateralized neural activity across hemispheres. By systematically comparing motor imagery and motor execution within the same paradigm, the researchers reported empirical evidence that the laterality hypothesis previously established for upper-limb tasks extends to unilateral lower-limb movement. The similarity between imagined and executed movement, the authors said, suggests a common neural substrate that could inform future brain-computer interface research.
Lower-Limb Motor Imagery Shows Lateralized EEG
Summary
An EEG study finds that unilateral lower-limb motor imagery and motor execution elicit similar lateralized neural activity patterns, extending a lateralization pattern long known in the upper limb to the lower limb.
Why it matters
Among the first to systematically confirm a shared lateralized neural basis between lower-limb motor imagery and execution, the study fills a gap left by lateralization research focused on the upper limb, and its event-related potential and functional-connectivity findings offer guidance for feature selection in lower-limb motor-imagery BCIs.
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pubmed.ncbi.nlm.nih.gov 2026-07-12
Southeast UniversityChangzhou UniversityHenan Psychiatric HospitalMotor DecodingNon-invasive BCIChina