Article 1 BCI inefficiency 1 adult 1 aptitude 1 brain computer interface (BCI) 1 controlled study 1 data classification 1 electroencephalography (EEG) 1 female 1 functional connectivity 1 functional connectivity (FC) human 1 image analysis 1 male 1 measurement accuracy 1 motor cortex 1 motor imagery (MI) 1 phase synchronization 1 problem solving 1 resting state network 1 right hemisphere 1 young adult 1