A confrontational naming task produces congruent increases and decreases in PET and fMRI.
A confrontational naming task produces congruent increases and decreases in PET and fMRI.
复制标题
对抗性命名任务会导致 PET 和 fMRI 的一致增加和减少。
DOI：
10.1006/nimg.1999.0471
复制
发表时间：
1999
期刊：
影响因子：
5.7
通讯作者：
Song,AW
中科院分区：
文献类型：
--
作者：
Votaw,JR;Faber,TL;Popp,CA;Henry,TR;Trudeau,JD;Woodard,JL;Mao,H;Hoffman,JM;Song,AW
本研究使用公认的(由正电子发射计算机断层扫描)对峙命名任务，在认知激活实验中比较正电子发射计算机断层扫描和功能磁共振成像。这项任务的信号变化比之前比较中使用的视觉或运动激活任务引起的变化要小得多。采用方差分析方法对多次比较进行调整，以确定对峙命名和体型大小辨别任务之间信号的显着变化。所有17个显著增加的区域(对峙命名信号更大)在两种模式下都有所增加。在13个在一种模式上显著下降的区域中，有10个在另一种模式上明显下降。三个不匹配的区域在一种模式上显示出显著的减少，在另一种模式上显示出不明显的增加。这项研究不能检测到PET和fMRI在激活部位位置上的一致差异。
This work uses the well-established (by PET) confrontation naming task to compare PET and fMRI in a cognitive activation experiment. The signal changes from this task are much less than the changes caused by visual or motor activation tasks used in previous comparisons. ANOVA methods adjusted for multiple comparisons were used to determine significant changes in signal between confrontation naming and figure size discrimination tasks. All 17 significantly increased regions (confrontation naming signal greater) seen on one modality were increased on both modalities. Ten of 13 regions that were significantly decreased on one modality were decreased on the other. Three mismatched regions showed a significant decrease on one modality and a nonsignificant increase on the other. This study could not detect a consistent difference in activation site location between PET and fMRI.