Event-related (De) synchronization (ERD/ERS) during motor imagery tasks: Implications for brain–computer int

Abstract

The primary aims of this research were to examine (1) mu and beta event-related desynchronization/synchronization (ERD/ERS) during motor imagery tasks with varying movement duration and (2) the potential impacts of movement duration on ERD/ERS patterns. Motor imagery tasks included brief and continuous imagined hand movements. During an imagery task, participants imagined an indicated movement for 1 s (i.e., brief movement imagery) or 5 s (i.e., continuous movement imagery). The results of the study support (1) that mu and beta ERD/ERS patterns are elicited during imagined hand movements and (2) that movement duration affects ERS and does not affect ERD patterns, during motor movement imagery. Additionally, brief movement imagery had a greater impact on mu and beta ERD; continuous movement imagery had a greater impact on mu and beta ERS. This research will be useful for designing future brain-computer interfaces as it provides valuable insight into the dynamics of electroencephalographic (EEG) oscillatory changes during motor imagery tasks with varying movement duration.


Keywords

Event-related desynchronization/synchronization (ERD/ERS), Movement duration, Motor imagery, Brainecomputer interface (BCI)


Reference

Jeon, Y., Nam, C. S., Kim, Y. J., & Whang, M. C. (2011). Event-related (De) synchronization (ERD/ERS) during motor imagery tasks: Implications for brain–computer interfaces. International Journal of Industrial Ergonomics, 41(5), 428-436.