bio·feed·back /-ˈfidˌbæk/
  生物反饋
  bio·feed·back /-ˈfɪdˌbæk/ 名詞
  biofeedback
       n : a training program in which a person is given information
           about physiological processes (heart rate or blood
           pressure) that is not normally available with the goal of
           gaining conscious control of them