Group-level brain decoding with deep learning.
Group-level brain decoding with deep learning.
复制标题
DOI:
10.1002/hbm.26500
复制
发表时间:
2023-12-01
影响因子:
4.8
通讯作者:
Woolrich, Mark
中科院分区:
文献类型:
--
作者:
Csaky, Richard;van Es, Mats W. J.;Jones, Oiwi Parker;Woolrich, Mark
Decoding brain imaging data are gaining popularity, with applications in brain‐computer interfaces and the study of neural representations. Decoding is typically subject‐specific and does not generalise well over subjects, due to high amounts of between subject variability. Techniques that overcome this will not only provide richer neuroscientific insights but also make it possible for group‐level models to outperform subject‐specific models. Here, we propose a method that uses subject embedding, analogous to word embedding in natural language processing, to learn and exploit the structure in between‐subject variability as part of a decoding model, our adaptation of the WaveNet architecture for classification. We apply this to magnetoencephalography data, where 15 subjects viewed 118 different images, with 30 examples per image; to classify images using the entire 1 s window following image presentation. We show that the combination of deep learning and subject embedding is crucial to closing the performance gap between subject‐ and group‐level decoding models. Importantly, group models outperform subject models on low‐accuracy subjects (although slightly impair high‐accuracy subjects) and can be helpful for initialising subject models. While we have not generally found group‐level models to perform better than subject‐level models, the performance of group modelling is expected to be even higher with bigger datasets. In order to provide physiological interpretation at the group level, we make use of permutation feature importance. This provides insights into the spatiotemporal and spectral information encoded in the models. All code is available on GitHub (https://github.com/ricsinaruto/MEG-group-decode). We propose using subject embeddings to learn and exploit the structure in between‐subject variability in MEG decoding. We show that the combination of deep learning and subject embedding is crucial to closing the performance gap between subject‐ and group‐level models, with group models outperforming subject models on low‐accuracy subjects.
登录
查看更多内容
DOI:
10.1186/1744-9081-3-62
发表时间:
2007-12-10
期刊:
Behavioral and brain functions : BBF
影响因子:
--
作者:
Demanuele C;James CJ;Sonuga-Barke EJ
通讯作者:
Sonuga-Barke EJ
影响因子:
64.8
作者:
Harris CR;Millman KJ;van der Walt SJ;Gommers R;Virtanen P;Cournapeau D;Wieser E;Taylor J;Berg S;Smith NJ;Kern R;Picus M;Hoyer S;van Kerkwijk MH;Brett M;Haldane A;Del Río JF;Wiebe M;Peterson P;Gérard-Marchant P;Sheppard K;Reddy T;Weckesser W;Abbasi H;Gohlke C;Oliphant TE
通讯作者:
Oliphant TE
影响因子:
5.7
作者:
Guggenmos, Matthias;Sterzer, Philipp;Cichy, Radoslaw Martin
通讯作者:
Cichy, Radoslaw Martin
影响因子:
4.3
作者:
Gramfort A;Luessi M;Larson E;Engemann DA;Strohmeier D;Brodbeck C;Goj R;Jas M;Brooks T;Parkkonen L;Hämäläinen M
通讯作者:
Hämäläinen M
DOI:
10.1109/tpami.2023.3263181
发表时间:
2023-09-01
影响因子:
23.6
作者:
Du, Changde;Fu, Kaicheng;He, Huiguang
通讯作者:
He, Huiguang