Increasing individual upper alpha power by neurofeedback improves cognitive performance in human subjects
Increasing individual upper alpha power by neurofeedback improves cognitive performance in human subjects
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DOI：
10.1007/s10484-005-2169-8
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发表时间：
2005-03-01
影响因子：
3
通讯作者：
Klimesch, W
中科院分区：
文献类型：
--
作者：
Hanslmayr, S;Sauseng, P;Klimesch, W
这一假设是为了测试神经反馈训练（NFT）是否能够提高认知能力。在上α和θ NFT前后进行心理旋转任务，只有那些能够增加上α功率的受试者（反应者）在NFT后的心理旋转中表现得更好。训练成功（NFT诱导的上α功率增加的程度）与认知表现的改善呈正相关。此外，NFT反应者的EEG显示出参考上α功率的显著增加（即在心理旋转之前的时间间隔内）。这与研究结果一致，研究表明，刺激前（参考）间隔中的上α功率增加与良好的认知表现有关。
The hypothesis was tested of whether neurofeedback training (NFT)-applied in order to increase upper alpha but decrease theta power-is capable of increasing cognitive performance. A mental rotation task was per formed before and after upper alpha and theta NFT Only those subjects who were able to increase their upper alpha power (responders) per formed better on mental rotations after NFT. Training success (extent of NFT-induced increase in upper alpha power) was positively correlated with the improvement in cognitive performance. Furthermore, the EEG of NFT responders showed a significant increase in reference upper alpha power (i.e. in a time interval preceding mental rotation). This is in line with studies showing that increased upper alpha power in a prestimulus (reference) interval is related to good cognitive performance.