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| 表象類似性解析× | 多変量パターン解析× | |
|---|---|---|
| 分野 | 神経画像学 | 神経画像学 |
| 系統 | Process / pipeline | Process / pipeline |
| 提唱年≠ | 2008 | 2001 |
| 提唱者≠ | Nikolaus Kriegeskorte | James V. Haxby |
| 種類≠ | fMRI similarity structure comparison | fMRI pattern classification pipeline |
| 原典≠ | Kriegeskorte, N., Mur, M., & Bandettini, P. A. (2008). Representational similarity analysis—connecting the branches of systems neuroscience. Frontiers in Systems Neuroscience, 2, 4. DOI ↗ | Norman, K. A., Polyn, S. M., Detre, G. J., & Haxby, J. V. (2006). Beyond mind-reading: multi-voxel pattern analysis of fMRI data. Trends in Cognitive Sciences, 10(9), 424–430. DOI ↗ |
| 別名 | RSA, representational geometry, similarity structure analysis | MVPA, brain decoding, pattern classification |
| 関連 | 3 | 3 |
| 概要≠ | Representational Similarity Analysis (RSA) is a framework for comparing representational geometry across brain regions, computational models, and behavioral measures. Introduced by Kriegeskorte and colleagues in 2008, RSA measures how similarly a brain region represents different stimuli or concepts by examining pairwise similarity structure rather than absolute activity patterns. | Multivariate Pattern Analysis (MVPA) is a machine learning approach to fMRI that decodes cognitive states, stimuli, or behavior from whole-brain spatial patterns of neural activity. Pioneered by Haxby and colleagues in 2001, MVPA treats fMRI as a classification problem: can a trained decoder predict what a person is perceiving or thinking based solely on their brain activity pattern? |
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