因为每个Voxel都要经过这样的分析,所以这个模型叫Voxel-wise。 Gallant 他们组这个研究用的一些语义、词性上面的一些东西作为特征然后拿这些特征去跟功能性核磁共振成像(fMRI)检测到的大脑活动去做进行强行关联。其实就是那种最基本最简单的机器学习模型。 简单的来说就是找规律。找权值,让这些特征的数量乘我找到的权值...
但是Voxel-Wise现在主要还是Gallant他们组,还有Kendrick Kay自己的组在用。Kendrick Kay在用类似Voxel-Wise的方法在经常做pRF(Population Receptive Field)这些东西。想要研究一些Top-Down,Attention之类的东西(Kay et al. 2016)。 我认为这也是一个很好的思路,可以吧MVPA和VW结合起来。MVPA可以用来评判脑区对特定任务的...
Voxel-wise Aβ 进展模式:通过对 Aβ 积累图的分析,发现高积累者全脑存在显著 Aβ 积累,在眶额内侧区、扣带回和楔前叶尤为明显。APOE 基因型和记忆衰退在右侧中央旁小叶周围存在显著交互作用,ε4 携带者伴记忆衰退在中央前后区和左侧额上回 Aβ 积累更多。 Voxel-wise 灰质萎缩模式:高积累者全脑皮质存在显著...
voxel-wise就是基于voxel水平的分析；ROI-wise是基于ROI水平分析。你比如在做功能连接的时候，基于voxel做的话，你选择一个或多个种子点，然后每个种子点的平均时间序列与全脑每个体素的时间序列做相关性分析，做出来就是种子点的全脑功能连接图；基于ROI做的话，你选择多个ROI，然后各个ROI时间序列之间做...
The VWPM integrates CLIP embeddings in a voxel-wise manner, learning the semantic relationships among pixels. The VTCM constrains the image prototype features, reducing the impact of noisy data. The DLB adaptively generates pseudo-labels, effectively leveraging the unlabeled data. Experimental results ...
答案解析 查看更多优质解析 解答一 举报 (某物)每个像素的统计分析这里voxel是体元,体素;立体像素的意思,而-wise指在某方面;表示方向、位置、方式等.voxel-wise可以翻译为每个像素. 解析看不懂?免费查看同类题视频解析查看解答 更多答案(2) 相似问题 什么是cosinor analyses repeated-measures analyses 1.Track ...
The voxel-wise semantic models predict BOLD responses in many brain areas, including SPFC, IPFC, LTC, VTC, LPC and MPC. These same regions have been previously identified as the semantic system in the human brain. Back to article page...
training process. Our main idea is therefore to combine object segmentation and recognition into one step by computing voxel-wise gray scale invariants (using nonlinear kernel functions and Haar-integration) on the volumetric multi-channel data set and classify each voxel using support vector machines...
Voxel-wise maps of the 3He ADC and LmD were subsequently warped using the 3He DW-MRI-ventilation deformation field transformation with the nearest neighbour interpolation. For each healthy volunteer, maps of 129Xe LmD were calculated voxel-by-voxel from the 129Xe DW-MRI data using the SEM ...
Voxel-wise maps of the 3He ADC and LmD were subsequently warped using the 3He DW-MRI-ventilation deformation field transformation with the nearest neighbour interpolation. For each healthy volunteer, maps of 129Xe LmD were calculated voxel-by-voxel from the 129Xe DW-MRI data using the SEM ...