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20 results for “functional MRI”

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q-bio.NCcs.HCEmpiricalRecentJun 17, 2026

Retrieval-Based Brain Decoding by Alignment, not Complexity

Matteo Ciferri, Matteo Ferrante, Nicola Toschi

This paper investigates the use of contrastive objectives for brain decoding using functional MRI (fMRI) activity and shows that linear contrastive decoders outperform other methods.

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cs.LGcs.AIcs.CVRecentMay 28, 2026

Functional MRI Time Series Generation via Wavelet-Based Image Transform and Spectral Flow Matching for Brain Disorder Identification

Hwa Hui Tew, Junn Yong Loo, Fang Yu Leong, Julia K. Lau +5 more

The paper introduces Dual-Spectral Flow Matching (DSFM), a novel generative framework that uses wavelet and cosine transforms to synthesize highly realistic, non-stationary fMRI time series for improv…

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q-bio.NCeess.SPEmpiricalRecentJun 23, 2026

EEG Interpretation Across Chant Listening: A Single-Subject Pilot Investigation Using Spectral and Functional Connectivity Analysis

Prerna Singh, Aishwarya Ghosh, Neelam Sinha, Deepti Navaratna

This paper investigates neural activity during five auditory conditions using EEG recordings from a 5-year-old participant, revealing condition-specific modulation of neural oscillatory activity and d…

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cs.CVEmpiricalRecentJul 1, 2026

High-dimensional Embedding Prior for Noisy K-space Domain MRIReconstruction

Yu Guan, Tianjia Huang, Qinrong Cai, Qiuyun Fan +2 more

A unified high-dimensional k-space reconstruction framework is proposed to enhance diffusion-based solvers for noisy MRI inverse problems through representation lifting.

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eess.IVcs.AIRecentMay 29, 2026

A physics-informed foundation model for quantitative diffusion MRI

Zihan Li, Jialan Zheng, Ziyu Li, Xun Yuan +17 more

The paper introduces PIGMENT, a physics-informed foundation model that enables reliable quantitative mapping of brain microstructure from extremely sparse or challenging diffusion MRI scans.

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cs.CVcs.AIq-bio.NCRecentMay 28, 2026

Brain-IT-VQA: From Brain Signals to Answers

Roman Beliy, Matias Cosarinsky, Oliver Heinimann, Navve Wasserman +1 more

The paper introduces Brain-IT-VQA, a novel framework that significantly improves visual question answering from fMRI signals, and presents NSD-VQA, a new, highly controlled dataset for this task.

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cs.CVEmpiricalRecentJul 8, 2026

AA-ViT: Anatomically Aware Vision Transformer with Structural and Frequency Guidance for Contrast Enhanced Brain MRI Synthesis

Talha Meraj, Tom Flannery, Charlie Cummins, Matt Townend +5 more

This paper proposes an anatomically aware frequency-and-structure-guided vision transformer (AA-ViT) for accurate and non-invasive contrast enhanced MRI (CEMRI) synthesis using pre-contrast MRI modali…

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cs.AIcs.HCRecentMay 31, 2026

A Minimalist Brain-Computer Musical Interface for Real-Time Emotion-Driven Sonification: System Design and Preliminary Evaluation

Pablo A. Monroy-D'Croz, Rafael Ramirez-Melendez, Julian Cespedes-Guevara

The paper designed a minimalist BCMI system to translate EEG-measured emotional valence into adaptive music, but preliminary testing showed that frontal alpha asymmetry was not reliably modulated by i…

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cs.CRcs.AIRecentMar 19, 2026

Functional Subspace Watermarking for Large Language Models

Zikang Ding, Junhao Li, Suling Wu, Junchi Yao +2 more

The paper proposes Functional Subspace Watermarking (FSW), a robust method that embeds ownership signals into a stable, low-dimensional functional subspace of LLMs, significantly improving detection a…

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cs.AIRecentMay 31, 2026

Brain-Atlas-Guided Generative Counterfactual Attention for Explainable Cognitive Decline Diagnosis Using Multimodal Connectomes

Xiongri Shen, Jiaqi Wang, Zhenxi Song, Yi Zhong +4 more

The paper proposes a novel Generative Counterfactual Attention-guided Network (GCAN) that uses multimodal connectomes and brain atlas knowledge to provide explainable and highly accurate diagnosis of…

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stat.MLcs.LGcs.SIEmpiricalRecentJun 27, 2026

Connectivity Estimation using Stochastic Graph Heat Modelling

Stephan Goerttler, Min Wu, Fei He

This paper extends a previous framework for estimating neurophysiological connectivity using noise-driven heat modelling on graphs, adding regularisation for improved robustness and relaxing noise ass…

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cs.AIRecentMay 28, 2026

Benchmarking Positional Encoding Strategies for Transformer-Based EEG Foundation Models

Ayse Betul Yuce, Sebastian Stober

This paper benchmarks five positional encoding strategies for transformer-based EEG foundation models, concluding that the optimal encoding is task-dependent and no single strategy is universally supe…

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cs.LGcs.AIRecentMay 27, 2026

A Multi-dimensional Framework for Evaluating Generalization in EEG Foundation Models

Aditya Kommineni, Emily Zhou, Kleanthis Avramidis, Tiantian Feng +1 more

The paper proposes a multi-dimensional evaluation framework to assess EEG foundation models under realistic low-resource conditions, finding that while these models excel in long-context tasks, their…

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cs.LGcs.CEcs.HCRecentMay 30, 2026

A multimodal dataset of photoplethysmography and continuous behavioral responses to ASMR and nature videos

Tushar Das, Daigo Hozaki, Koushlendra Kumar Singh, Hirohito M. Kondo

The paper introduces REST-ASMR, a novel multimodal dataset combining PPG and behavioral responses to ASMR and nature videos, and demonstrates that a deep learning model can accurately predict ASMR tin…

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eess.SPcs.AIcs.LGEmpiricalRecentJun 18, 2026

Evaluation of EEG Foundation Models for Event-Based Burst-Suppression Detection in ICU

Elisa Vasta, Thorir Mar Ingolfsson, Andrea Cossettini, Luca Benini +3 more

This paper evaluates the use of EEG Foundation Models for burst suppression detection in ICU EEG data, achieving state-of-the-art performance.

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cs.LGcs.AIRecentMay 30, 2026

Dive into Waves: Morlet Spectral Transformer for Cross-Subject Emotion Decoding from EEG

Jiaxin Qing, Lexin Li

The paper proposes the Morlet Spectral Transformer (MST), a novel architecture that effectively decodes cross-subject emotion from EEG by designing specialized spectral and spatial representations, ou…

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cs.CVcs.AIRecentMay 28, 2026

Versatile Framework with Semantic and Structural guidance for Image Reconstruction from Brain Activity

Yizhuo Lu, Changde Du, Qiongyi Zhou, Liuyun Jiang +1 more

The paper proposes MindDiffuser, a two-stage framework that significantly improves image reconstruction from brain activity by combining semantic guidance from text-to-image models with structural ref…

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cs.HCcs.AIcs.CVRecentMay 29, 2026

UF-AMA: A unified framework for cross-domain emotion recognition via adaptive multimodal alignment

Zheng Wang, Shuo Wang, Junhong Wang

The paper proposes UF-AMA, a unified framework that achieves state-of-the-art cross-domain emotion recognition by adaptively aligning and fusing multimodal physiological signals like EEG and eye-track…

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stat.MLcs.LGmath.PRTheoreticalRecentJul 7, 2026

A Convex Approximation Framework for Neural Likelihood-Based Bayesian Inverse Problems

Fabian Schneider, Tapio Helin, Leila Taghizadeh

This paper improves the foundations of neural likelihood approximation for Bayesian inverse problems by making the learning problem strictly convex and showing convergence to the true likelihood.

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