The objective assessment of electrically induced taste sensation using the

• Project/Area Number: 23592472
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Otorhinolaryngology
• Research Institution: Tohoku University
• Principal Investigator: YAMAUCHI Daisuke 東北大学, 医学(系)研究科(研究院), 非常勤講師 (70361102)
• Co-Investigator(Kenkyū-buntansha): KANNO Akitake 東北大学, 加齢医学研究所, 助教 (20578968) ; KAWASE Tetsuaki 東北大学, 大学院医工学研究科, 教授 (50169728)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 脳磁図 / 味覚誘発脳磁界 / 鼓索神経

Research Abstract

The evoked magnetic fields following the electrical tongue stimulation were assessed in order to establish the objective evaluation of electrically induced taste sensation. The results indicated that the source estimation using the equivalent current dipole analysis would not be necessarily adequate to evaluate the pure taste evoked responses in isolation from somatosensory response. On the other hand, both responses (those for taste and for somatosensory) can be separately evaluated simultaneously by using a time-frequency analysis that has been introduced recently.