반도체 미세전극을 이용한 말초 신경에서의 신경 신호 기록

Neural Recordings Obtained from Peripheral Nerves Using Semiconductor Microelectrode

  • 황은정 (서울 대학교 공과대학 전기공학부) ;
  • 김성준 (서울 대학교 공과대학 전기공학부) ;
  • 조하원 (서울 대학교 약학대학 약학과) ;
  • 호우택 (서울 대학교 약학대학 약학과)
  • Hwang, E.J. (School of Electrical Engineering, Seoul National University) ;
  • Kim, S.J. (School of Electrical Engineering, Seoul National University) ;
  • Cho, H.W. (Department of Pharmacology, Seoul National University) ;
  • Oh, W.T. (Department of Pharmacology, Seoul National University)
  • 발행 : 1997.11.28

초록

A semiconductor microelectrode array has been successfully used in obtaining single unit recordings from medial giant nerve of clay fish, rat saphenous nerve and abdominal ganglia of aplysia. The recording device fabricated using silicon microfabrication techniques is a depth-probe type and, previously, has been mostly used to record from central nerve system of vertebrates. From invertebrates, and also from peripheral nerves of vertebrates, however, the quality of the recorded signal depends heavily on the recording conditions, such as the proximity of the electrode site to the nerve cells and the size of the neuron. We have modeled the signal to noise ratio as unctions of these parameters and compared the experimental data with the calculated values thus obtained.

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