２．脳神経イメージングコミュの神経科学大会２００５

高磁場ＭＲＩというセッションのまとめをここに記す。

午前　ＳＹ２－０６-1　　高磁場ＭＲイメージング
程　康(ＫａｎｇＣｈａｎｇ）　７Ｔ　ＳＥＮＳＥ　
ＢｏｌｄＭＲＩ＋ＥＰＩＡｎａｔｏｍｙ
1.7x1.7x1mm 7T, 8channel
S/N ratio imrovement; optimized image
accelareted imaging between V1/V2 boarder

SY2-06-2 高磁場ＮＭＲによる神経変性疾患のアミロイドイメージング　　樋口真人　理研

ＳＹ２－０６－３　clinical application 中田力

SY2-06-4 Multi-channnel detectors. Joef Duyn (NIH)
SN improvement 5 times

SY2-06-5 Use of intracortical recordings
Logothetis　(Max Plank) The most important talk:

To investigate physiology, especially spontaneous
brain occilations and activation of neuromodulatory
systems, ultra high-resolution imaging is seeked.

Resolution 125x125x720 micro (0.125x 0.125 x 0.7 mm)
real time BOLD; 250ms TI
trial based analysis, invivo spectroscopy
10 sec is enough: TF=0.4 Hz
combined neurophysiology and imaging;

Probably measuring local field potential (global activity)

presentation time: if short (500ms), nonlinear
components:

excitatory-inhibitory interaction in V1
-adaptation experiments

NEURAL CONNECTIVITY STUDIES

Diffusion Tensor Imaging (DTI)
Paramagnetic traces (Mn)
trans snaptic activities

Short presentation time= non-linear components
repetition of trials to reduce noise

The relationship between EPSP and LFP is not clear:
Spin eccho method as spike seeking