 Frontoparietal FC was significantly increased in the tested group (p = 0.005) and the cognitive functions (memory and attention) were significantly promoted compared to the NC group . Follow-up evaluations indicated that the training effect can last for over half a month. The proposed method shows great potential to be developed as a fast, effective  and widespread training approach for cognitive functions enhancementand rehabilitation applications .
<meaning-changed>  Frontoparietal FC was significantly increased in the tested group (p = 0.005) and the cognitive functions (memory and attention) were significantly promoted compared to the NC group . Follow-up evaluations indicated that the training effect can last for over half a month. The proposed method shows great potential to be developed as a fast, effective  and widespread training approach for cognitive functions enhancementand rehabilitation applications .
 Frontoparietal FC was significantly increased in the tested group (p = 0.005) and the cognitive functions (memory and attention) were significantly promoted compared with the control group (accuracy of 3-back test: p D 0.0005, reaction time of 3-back test: p D 0.0009). After additional validations on long-term training effect and on different patient populations, the proposed method exhibited considerable potential to be developed as a fast, effective and widespread training approach for cognitive functions enhancementand rehabilitation applications .