BCIwiki (bciwiki.com) — Only basketball experts showed significant and sustained sensorimotor rhythm event-related desynchronisation (SMR-ERD) while imagining movements, researchers affiliated with Universite Catholique de Louvain (UCLouvain) reported in a preprint posted to bioRxiv on September 1, 2026 (DOI 10.64898/2026.08.26.747187). The work has not been peer reviewed.
Kinaesthetic motor imagery, rehearsing the felt sensation of a movement without performing it, is widely used in sport to improve performance. Neurofeedback, which feeds real-time brain signals back to the user, may support such training, but the best neural target to reinforce is unclear. SMR-ERD, thought to index sensorimotor cortex engagement, is one candidate, though earlier work has linked sport expertise to weaker SMR-ERD, possibly reflecting neural efficiency.
The team compared 17 basketball players with 16 people without formal basketball training. Questionnaires measured imagery ability and how often participants used it, while electroencephalography (EEG) quantified SMR-ERD as they imagined either a free throw, familiar only to the experts, or lifting a box, familiar to both groups.
Experts reported stronger and more frequent motor imagery. Their SMR-ERD exceeded that of novices specifically during the free throw. Within the expert group, however, higher imagery ability was associated with weaker SMR-ERD. The authors suggest sport expertise first boosts voluntary recruitment of sensorimotor networks, while greater imagery ability may later promote efficiency and reduce overall cortical activation.
They conclude that motor imagery-based neurofeedback training should be tailored to each user's sport expertise and imagery ability.