额下回

同时，左侧额下回和扣带回后部有小范围的rCBF升高。

RCBF was also increased in left inferior frontal gyrus and posterior cingulate gyrus .

两组中，与简单计算任务相比，执行复杂计算任务时前额皮层、运动前区和顶下小叶的LI均下降，而额下回后部LI增加。

In two groups , the difficulty of task increased the laterality of prefrontal cortex , premotor area , and inferior parietal lobule decreased , but the laterality of posterior part of inferior frontal gyrus increased .

在执行简单计算和复杂计算时，右利手组前额皮层、运动前区LI大于左利手组，额下回后部LI小于左利手组，顶下小叶偏侧化程度两组接近。

During simple and complex calculation , the laterality index of prefrontal cortex and premotor area was higher in right handed group than that in left handed group , but the laterality of inferior parietal lobule had no significant difference .

纵行的中央前沟出现于额下回岛盖部后方，为Broca区的后界。

Area of Broca reaches its posterior limit as soon as the precentral sulcus appears behind the opercular part of the inferior frontal gyrus .

结果AD/HD组治疗后的1-back任务较治疗前1-back任务在右额下回和右额中回激活明显，二者有显著性差异（P0.05）；

Results The greater activations in right inferior frontal gyrus and right middle frontal were observed in AD / HD children in conducting 1-back after treatment , in contrast to before treatment . Which had significant differences ( P0.05 ) .

语义任务减去语音任务激活的脑区有，左侧额下回（BA47），左侧海马（BA36）和右侧海马旁回（BA36）。

When phonological task was subtracted from semantic task , some areas in left inferior frontal lobe ( BA 47 ), left hippocampus ( BA 36 ) and right Gyrus para-hippocampus ( BA 36 ) were activated .

正常组的1-back任务与患者组治疗前的1-back任务比较没有显著性差异，正常组的2-back任务与患者组治疗前2-back任务比较在左额下回和左顶叶后下部激活明显（P<0.05）。

The controls showed no significant differences during 1-back task , in comparison to AD / HD group pre-treatment . The controls showed significant activation during 2-back task in left inferior frontal gyrus and left posterior parietal cortex , in comparison to AD / HD group pre-treatment .

结果：汉字真字刺激在左额叶、中央前回（BA6）及枕叶（BA18）显著激活；左顶叶、中央后回（BA3）、右额下回（BA9）及双侧颞叶少量激活。

Results : Chinese true word test showed significant activation in left frontal lobe , precentral gyrus ( BA6 ), occipital lobe ( BA18 ), and slight activation in left parietal lobe , postcentral gyrus ( BA3 ), right inferior frontal gyrus ( BA9 ) and bitemporal lobe ;

左额下回感兴趣区内，粤语激活左前额叶腹外侧皮层（BA47）和背外侧皮层（BA9），普通话只激活额叶背外侧皮层（BA9），粤语激活体积大于普通话。

The ROI of left inferior frontal gyrus was found that Cantonese dialect activated the left ventrolateral prefrontal cortex ( BA47 ) and dorsolateral prefrontal cortex ( BA9 ), while Mandarin only activated the dorsolateral cortex ( BA9 ) . The activation volume of Cantonese dialect was greater than Mandarin .

主要语言相关皮层区为左颞叶及双侧额下回。

The main correlational language cortex included left temporal lobe and bilateral inferior frontal gyrus .

老年人在右侧额下回和右侧颞中回的激活体积明显大于青年人。

Elder subjects showed stronger activations in right gyrus frontal inferior and right gyrus temporalis medius than younger .

结论左额下回可能与语音存贮、行为选择或调控注意有关。

Conclusion This result supports that the left IFG maybe related with the phonological information storage , behavior chosen or attention modulation .

结果显示粤语与普通话共同激活左额下回、右枕中回和右楔前叶。

The results showed that Cantonese dialect and Mandarin both activated the left inferior frontal gyrus , the right middle occipital gyrus and right precuneus .

同词汇判断的行为结果一致，左侧额下回对假词的反应明显强于其对真词的反应。

Mirroring a behavioral lexical effect , left inferior frontal gyrus ( IFG ) was significantly more activated for pseudo words than for real words .

真词、假词均在双侧大脑半球诱发出明显的晚发磁反应波，左侧大脑半球磁反应波分化较右侧大脑半球好，运动性语言中枢均位于额下回后部。

Both words and pseudowords evoked obvious late magnetic reaction waves in bilateral cerebral hemispheres , the motor language centers both located at posterior inferior frontal gyrus .

时针2～3点（右）及9～11点（左）方向髓突所对应脑回是额下回。

The processus neuralis on direction of 2:00-3:00 hour hand ( right side ), and 9:00-11:00 hour hand ( right side ) were corresponding to inferior frontal gyrus .

左额下回后部对动词配价加工起主要作用，还涉及左额下回后部的周围区域和其他较远的相关区域。

The left inferior temporal gyrus plays a key role in the processing of verb collocations , which are also connected with left superior frontal gyrus and other brain loci .

结果数字默读实验脑激活区为左额下回后部、左角回、双侧额内回。

Results For subvocal number reading task , significant activations were observed in the left posterior part of inferior frontal gyrus , left angular gyrus , bilateral medial frontal gyrus .

比较学习前后的脑区激活结构，学习前右侧额下回、左侧扣带回后部、左侧顶间沟周围脑区、左侧颞中回激活明显强于学习后；

Comparing pre-learning and post-learning task shows that during pre-learning task stronger activities on right inferior frontal gyrus , left posterior cingulate gyrus , left intraparietal sulcus and left middle temporal gyrus .

方法：分别采用针药结合麻醉和全身麻醉（简称全麻）对25例位于大脑左侧额下回后部语言运动区周围肿瘤实施手术切除，比较不同麻醉下对患者语言功能的影响。

Methods : Twenty five patients with tumor close to the speech area underwent neurosurgical operation under CADA or general anesthesia were observed , and the post operational language function protecting effect was analyzed .

此外，激活脑区的相关统计显示，广州话高频字激活的左额下回与右脑额上回是高相关的功能连接区。

The statistical results of correlation among activating areas revealed that the left inferior frontal gyrus and right superior frontal gyrus , activated in the high-frequency Cantonese Chinese characters task , were functional connectivity areas .

结果：数字默读以双侧枕叶激活为著，此外左额下回后部、左侧角回、双侧额内回及双侧小脑半球激活。

Results : Bilateral occipital lobes were activated obviously , and other activated areas included the posterior part of the left inferior frontal gyrus , left angular gyrus , bilateral medial frontal gyrus and bilateral cerebellums .

结果真、假词的判断激活了相似的包括双侧额下回，颞中回，梭状回和舌回，双侧缘上回，丘脑等区域。

Results Processing of real words and pseudowords activated a highly comparable neural network , including bilateral inferior frontal gyrus ( IFG ), middle temporal gyrus , fusiform gyrus , lingual gyrus , supramarginal gyrus , and thalamus .

结论左侧额下回在真假词任务判断中的作用，与形素到音素的转换过程无关，而是来源于对肯定和否定判断的不同反应模式。

Conclusion The results indicate that the processing of left inferior frontal gyrus in judging pseudo words and real words is not related to grapheme-to-phoneme conversion , but rather to making positive versus negative responses in decision making .

自我报告渴求与激活脑区数目及左侧额下回、额中回、扣带回前部、额内测回，右侧眶额皮质、杏仁核和岛叶等7个脑区的激活体积呈正相关（P<005）。

The numbers of activation brain areas were positively correlated with self-report craving . Among these activated brain areas , volumes of seven specific activated areas also were positively correlated with self-report craving ( P < 0.05 ) .

对真假词的判断激活了两侧额下回、颞上回、颞中回、距状回、舌回及左侧缘上回等脑区。

Processing of pseudo words and real words activated a highly comparable network of brain regions , including bilateral inferior frontal gyrus , superior , middle temporal gyrus , calcarine and lingual gyrus , and left supramarginal gyrus .

同时，两者又有各自特异的激活区，图片命名任务的特异激活区位于右侧颞&枕交界区的腹侧面，而左侧额下回和左侧顶下小叶则是词汇联想任务的特异激活区。

We also found that the activation in the ventral of right temporal-occipital junction was specific for picture naming , and the activations in the left inferior frontal gyrus and the left inferior parietal lobule were specific for word generation .

左额下回对假词的反应要强于其对真词的反应，这一结果的出现不支持以往认为左额下回起着将形素转换为音素作用的观点。

Mirroring a behavioral lexical effect , left inferior frontal gyrus ( IFG ) was significantly more activated for pseudo words than for real words . This result does not support the view that left IFG plays a role in grapheme-to-phoneme conversion .

在胼胝体嘴首次出现的断面上，额下回主要为三角部，其出现率：左侧77%，右侧87%；

On the section of the rostrum of corpus callosum appearing for the first time , the inferior frontal gyrus was chiefly the triangular part . Its appearing rate was 77 % on the left side and 87 % on the right one .

患者组表现为多个脑区的局部一致性下降，主要分布于右侧岛叶、额下回、颞下回，以及左侧扣带回前部、山顶（小脑）和额中回。

The patients showed decreased regional homogeneity ( ReHo ) in some brain regions , which distributed over the right insular lobe , right inferior frontal gyrus , right inferior temporal gyrus , left anterior cingulate cortex , left culmen and left middle frontal gyrus .