Control by a patient of involuntary nervous-system functions, such as heartbeat and blood circulation, by the use of electronic monitoring devices.

【生物】生理反馈(用电子仪器控制无意识的身体机能的技术)。

Control of one's brain waves, especially the alpha waves, in order to maintain a particular mental state. This is usually achieved with the help of an oscilloscope electroencephalograph that emits an audible signal when sufficient alpha waves are produced.

原生反馈(控制脑波，由其是 α 波，以保持一个特别的精神状态，通常用示波器帮助进行。当产生了足够的 α 波时，示波器便发出一种可听到的信号)。