Investigations of motor performance with neuromodulation and exoskeleton using leader-follower modality: a tDCS study

Date

2024-01-01

Author

Okasha, Amr
Şengezer, Saba
Kılınç, Hasan
Pourreza, Elmira
Fincan, Ceren
Yılmaz, Tunahan
Boran, Hürrem E.
Cengiz, Bülent
Yozgatlıgil, Ceylan
Gürses, Senih
Turgut, Ali Emre
Arıkan, Kutluk B.
Ünal, Bengi
Ünal, Çağrı
Günendi, Zafer
Zinnuroğlu, Murat
Çağlayan, Hale Z. B.

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This study investigates how the combination of robot-mediated haptic interaction and cerebellar neuromodulation can improve task performance and promote motor skill development in healthy individuals using a robotic exoskeleton worn on the index finger. The authors propose a leader-follower type of mirror game where participants can follow a leader in a two-dimensional virtual reality environment while the exoskeleton tracks the index finger motion using an admittance filter. The game requires two primary learning phases: the initial phase focuses on mastering the pinching interface, while the second phase centers on predicting the leader’s movements. Cerebral transcranial direct current stimulation (tDCS) with anodal polarity is applied to the subjects during the game. It is shown that the subjects’ performance improves as they play the game. The combination of tDCS with finger exoskeleton significantly enhances task performance. Our research indicates that modulation of the cerebellum during the mirror game improves the motor skills of healthy individuals. The results also indicate potential uses for motor neurorehabilitation in hemiplegia patients.

Subject Keywords

Exoskeleton, Motor performance and learning, tDCS, Virtual-reality

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85205558100&origin=inward
https://hdl.handle.net/11511/112093

Collections

Department of Mathematics, Article