Search Results for author: Amrit Kashyap

Found 3 papers, 0 papers with code

Learning low-dimensional dynamics from whole-brain data improves task capture

no code implementations18 May 2023 Eloy Geenjaar, Donghyun Kim, Riyasat Ohib, Marlena Duda, Amrit Kashyap, Sergey Plis, Vince Calhoun

We evaluate our approach on various task-fMRI datasets, including motor, working memory, and relational processing tasks, and demonstrate that it outperforms widely used dimensionality reduction techniques in how well the latent timeseries relates to behavioral sub-tasks, such as left-hand or right-hand tapping.

Dimensionality Reduction

CommsVAE: Learning the brain's macroscale communication dynamics using coupled sequential VAEs

no code implementations7 Oct 2022 Eloy Geenjaar, Noah Lewis, Amrit Kashyap, Robyn Miller, Vince Calhoun

To analyze communication, the brain is often split up into anatomical regions that each perform certain computations.

Specificity

Spatio-temporally separable non-linear latent factor learning: an application to somatomotor cortex fMRI data

no code implementations26 May 2022 Eloy Geenjaar, Amrit Kashyap, Noah Lewis, Robyn Miller, Vince Calhoun

Our approach is evaluated on data with multiple motor sub-tasks to assess whether the model captures disentangled latent factors that correspond to each sub-task.

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