개인구독
소속 기관이 없으신 경우, 개인 정기구독을 하시면 저렴하게
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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Presuming that firing neurons have motions inside the MRI magnet due to the interaction between the neuronal magnetic field and the main
magnetic field, we applied motion encoding gradients to dissected snail ganglia to observe faster responding MRI signal than the BOLD
signal. To activate the snail ganglia in synchronization with the MRI pulse sequence, we used electrical stimulation with the frequency of 30
Hz and the pulse width of 2 s. To observe the fast responding signal, we used the volume selected MRI sequence. The magnetic resonance
signal intensity, measured with 8 ms long motion encoding gradient with a 20mT/m gradient strength, decreased about 3.46±1.48 % when
the ganglia were activated by the electrical stimulation.
목차
등록된 정보가 없습니다.
참고문헌 (18)
참고문헌 신청
Bodurka, J / 1999. / Curent-induced magnetic resonance phase imaging 137 : 265 ~ 271
Bodurka, J / 2002. / Toward direct maping of neuronal activity: MRI detection of ultraweak, transient magnetic field changes 47 : 1052 ~ 1058
Chu / 2004. / Hunting for neuronal curents: absence of rapid MRI signal changes during visual-evoked response 23 : 1059 ~ 1067
Hamalainen / 1993. / and aplications to noninvasive studies of the working human 65 : 413 ~ 497
Konn / 2003. / MRI detection of weak magnetic fields due to an extended curent dipole in a conducting sphere: A model for direct detection of neuronal currents in the brain.
Bodurka, J / 2002. / Toward direct maping of neuronal activity: MRI detection of ultraweak, transient magnetic field changes 47 : 1052 ~ 1058
Chu / 2004. / Hunting for neuronal curents: absence of rapid MRI signal changes during visual-evoked response 23 : 1059 ~ 1067
Hamalainen / 1993. / and aplications to noninvasive studies of the working human 65 : 413 ~ 497
Konn / 2003. / MRI detection of weak magnetic fields due to an extended curent dipole in a conducting sphere: A model for direct detection of neuronal currents in the brain.
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