Multivariate spatial feature selection in fMRI.
Multivariate spatial feature selection in fMRI.
复制标题
fMRI中的多元空间特征选择。
DOI:
10.1093/scan/nsab010
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发表时间:
2021-08-05
影响因子:
4.2
通讯作者:
Chang LJ
中科院分区:
文献类型:
--
作者:
Jolly E;Chang LJ
Multivariate neuroimaging analyses constitute a powerful class of techniques to identify psychological representations. However, not all psychological processes are represented at the same spatial scale throughout the brain. This heterogeneity is apparent when comparing hierarchically organized local representations of perceptual processes to flexible transmodal representations of more abstract cognitive processes such as social and affective operations. An open question is how the spatial scale of analytic approaches interacts with the spatial scale of the representations under investigation. In this article, we describe how multivariate analyses can be viewed as existing on a spatial spectrum, anchored by searchlights used to identify locally distributed patterns of information on one end, whole brain approach used to identify diffuse neural representations at the other and region-based approaches in between. We describe how these distinctions are an important and often overlooked analytic consideration and provide heuristics to compare these different techniques to choose based on the analyst’s inferential goals.
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影响因子:
4.3
作者:
Diedrichsen J;Kriegeskorte N
通讯作者:
Kriegeskorte N
影响因子:
24.8
作者:
Adolphs, Ralph
通讯作者:
Adolphs, Ralph
DOI:
10.1098/rstb.2005.1634
发表时间:
2005-05-29
影响因子:
6.3
作者:
Beckmann, CF;DeLuca, M;Smith, SM
通讯作者:
Smith, SM
影响因子:
5.7
作者:
FRISTON, KJ;HOLMES, AP;TURNER, R
通讯作者:
TURNER, R
影响因子:
3.7
作者:
Felleman, Daniel J.;Van Essen, David C.
通讯作者:
Van Essen, David C.