Search Results for author: Meenakshi Khosla

Found 10 papers, 6 papers with code

Soft Matching Distance: A metric on neural representations that captures single-neuron tuning

no code implementations16 Nov 2023 Meenakshi Khosla, Alex H. Williams

Common measures of neural representational (dis)similarity are designed to be insensitive to rotations and reflections of the neural activation space.

NeuroGen: activation optimized image synthesis for discovery neuroscience

2 code implementations15 May 2021 Zijin Gu, Keith W. Jamison, Meenakshi Khosla, Emily J. Allen, Yihan Wu, Thomas Naselaris, Kendrick Kay, Mert R. Sabuncu, Amy Kuceyeski

NeuroGen combines an fMRI-trained neural encoding model of human vision with a deep generative network to synthesize images predicted to achieve a target pattern of macro-scale brain activation.

Image Generation

Neural encoding with visual attention

1 code implementation NeurIPS 2020 Meenakshi Khosla, Gia H. Ngo, Keith Jamison, Amy Kuceyeski, Mert R. Sabuncu

Using concurrent eye-tracking and functional Magnetic Resonance Imaging (fMRI) recordings from a large cohort of human subjects watching movies, we first demonstrate that leveraging gaze information, in the form of attentional masking, can significantly improve brain response prediction accuracy in a neural encoding model.

A shared neural encoding model for the prediction of subject-specific fMRI response

1 code implementation29 Jun 2020 Meenakshi Khosla, Gia H. Ngo, Keith Jamison, Amy Kuceyeski, Mert R. Sabuncu

The increasing popularity of naturalistic paradigms in fMRI (such as movie watching) demands novel strategies for multi-subject data analysis, such as use of neural encoding models.

Transfer Learning

Detecting abnormalities in resting-state dynamics: An unsupervised learning approach

no code implementations16 Aug 2019 Meenakshi Khosla, Keith Jamison, Amy Kuceyeski, Mert R. Sabuncu

Resting-state functional MRI (rs-fMRI) is a rich imaging modality that captures spontaneous brain activity patterns, revealing clues about the connectomic organization of the human brain.

Anomaly Detection

Machine learning in resting-state fMRI analysis

no code implementations30 Dec 2018 Meenakshi Khosla, Keith Jamison, Gia H. Ngo, Amy Kuceyeski, Mert R. Sabuncu

Here, we present an overview of various unsupervised and supervised machine learning applications to rs-fMRI.

BIG-bench Machine Learning

Ensemble learning with 3D convolutional neural networks for connectome-based prediction

1 code implementation11 Sep 2018 Meenakshi Khosla, Keith Jamison, Amy Kuceyeski, Mert R. Sabuncu

The specificty and sensitivity of resting state functional MRI (rs-fMRI) measurements depend on pre-processing choices, such as the parcellation scheme used to define regions of interest (ROIs).

BIG-bench Machine Learning Ensemble Learning

3D Convolutional Neural Networks for Classification of Functional Connectomes

no code implementations11 Jun 2018 Meenakshi Khosla, Keith Jamison, Amy Kuceyeski, Mert Sabuncu

Resting-state functional MRI (rs-fMRI) scans hold the potential to serve as a diagnostic or prognostic tool for a wide variety of conditions, such as autism, Alzheimer's disease, and stroke.

Classification General Classification

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