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Motivation: In many fMRI studies, respiratory signals are often missing or of poor quality. Therefore, it could be highly beneficial to have a tool to extract respiratory variation (RV) waveforms directly from fMRI data without the need for…

机器学习 · 计算机科学 2024-05-02 Abdoljalil Addeh , Fernando Vega , Rebecca J. Williams , G. Bruce Pike , M. Ethan MacDonald

Background: Functional magnetic resonance imaging (fMRI) provides non-invasive measures of neuronal activity using an endogenous Blood Oxygenation-Level Dependent (BOLD) contrast. This article introduces a nonlinear dimensionality reduction…

图像与视频处理 · 电气工程与系统科学 2019-12-09 Gagan Sidhu

Mendelian Randomization is a widely used instrumental variable method for assessing causal effects of lifelong exposures on health outcomes. Many exposures, however, have causal effects that vary across the life course and often influence…

Multivariate machine learning methods are increasingly used to analyze neuroimaging data, often replacing more traditional "mass univariate" techniques that fit data one voxel at a time. In the functional magnetic resonance imaging (fMRI)…

Humans excel at performing complex tasks by leveraging long-term memory across temporal and spatial experiences. In contrast, current Large Language Models (LLMs) struggle to effectively plan and act in dynamic, multi-room 3D environments.…

计算机视觉与模式识别 · 计算机科学 2025-12-18 Wenbo Hu , Yining Hong , Yanjun Wang , Leison Gao , Zibu Wei , Xingcheng Yao , Nanyun Peng , Yonatan Bitton , Idan Szpektor , Kai-Wei Chang

Design Research Methodology (DRM) supports systematic design research through representations such as Reference Models and Impact Models. However, the practical construction and maintenance of these models often remains manual, requiring…

软件工程 · 计算机科学 2026-05-12 Apala Chakrabarti

Scaling temporal dynamics in functional MRI (fMRI) signals have been evidenced for a decade as intrinsic characteristics of ongoing brain activity (Zarahn et al., 1997). Recently, scaling properties were shown to fluctuate across brain…

统计理论 · 数学 2013-08-21 P. Ciuciu , G. Varoquaux , P. Abry , S. Sadaghiani , A. Kleinschmidt

Here we demonstrate that the activity of neural ensembles can be quantitatively modeled. We first show that an ensemble dynamical model (EDM) accurately approximates the distribution of voltages and average firing rate per neuron of a…

神经元与认知 · 定量生物学 2015-09-07 Joaquin Rapela , Mark Kostuk , Peter F. Rowat , Tim Mullen , Edward F. Chang , Kristofer Bouchard

Accurately modeling longitudinal brain MRI progression is crucial for understanding neurodegenerative diseases and predicting individualized structural changes. Existing state-of-the-art approaches, such as Brain Latent Progression (BrLP),…

计算机视觉与模式识别 · 计算机科学 2026-01-22 Cheng Wan , Bahram Jafrasteh , Ehsan Adeli , Miaomiao Zhang , Qingyu Zhao

Functional Magnetic Resonance Imaging (fMRI) is an imaging technique widely used to study human brain activity. fMRI signals in areas across the brain transiently synchronise and desynchronise their activity in a highly structured manner,…

机器学习 · 计算机科学 2025-08-12 Yiran Huang , Amirhossein Nouranizadeh , Christine Ahrends , Mengjia Xu

Modeling episodic memory (EM) remains a significant challenge in both neuroscience and AI, with existing models either lacking interpretability or struggling with practical applications. This paper proposes the Vision-Language Episodic…

神经元与认知 · 定量生物学 2025-05-09 Chong Li , Taiping Zeng , Xiangyang Xue , Jianfeng Feng

Embodied task planning requires agents to execute long-horizon, goal-directed actions in complex 3D environments, where success depends on both immediate perception and accumulated experience across tasks. However, most existing LLM-based…

机器人学 · 计算机科学 2026-04-21 Xiaoyu Ma , Lianyu Hu , Wenbing Tang , Zixuan Hu , Zeqin Liao , Zhizhen Wu , Yang Liu

Brain network provides important insights for the diagnosis of many brain disorders, and how to effectively model the brain structure has become one of the core issues in the domain of brain imaging analysis. Recently, various computational…

神经元与认知 · 定量生物学 2022-12-02 Zhengwang Xia , Tao Zhou , Saqib Mamoon , Amani Alfakih , Jianfeng Lu

Studies of Alzheimer's disease (AD) often collect multiple longitudinal clinical outcomes, which are correlated and predictive of AD progression. It is of great scientific interest to investigate the association between the outcomes and…

统计方法学 · 统计学 2021-05-18 Cai Li , Luo Xiao , Sheng Luo

Brain function relies on a precisely coordinated and dynamic balance between the functional integration and segregation of distinct neural systems. Characterizing the way in which neural systems reconfigure their interactions to give rise…

神经元与认知 · 定量生物学 2021-01-28 Lingbin Bian , Tiangang Cui , B. T. Thomas Yeo , Alex Fornito , Adeel Razi , Jonathan Keith

The human brain has long inspired the pursuit of artificial intelligence (AI). Recently, neuroimaging studies provide compelling evidence of alignment between the computational representation of artificial neural networks (ANNs) and the…

神经元与认知 · 定量生物学 2024-11-01 Haiyang Sun , Lin Zhao , Zihao Wu , Xiaohui Gao , Yutao Hu , Mengfei Zuo , Wei Zhang , Junwei Han , Tianming Liu , Xintao Hu

Despite the remarkable success of Vision-Language Models (VLMs), their performance on a range of complex visual tasks is often hindered by a "visual processing bottleneck": a propensity to lose grounding in visual evidence and exhibit a…

计算机视觉与模式识别 · 计算机科学 2026-02-06 Xinlei Yu , Chengming Xu , Guibin Zhang , Zhangquan Chen , Yudong Zhang , Yongbo He , Peng-Tao Jiang , Jiangning Zhang , Xiaobin Hu , Shuicheng Yan

Effective connectivity analysis in functional magnetic resonance imaging (fMRI) studies directional interactions among brain regions and experimental stimuli. Dynamic causal modeling (DCM) is a widely used method to estimate effective…

统计方法学 · 统计学 2026-05-15 Kaitlyn R. Fales , Hyebin Song , Nicole A. Lazar

Resting-state functional magnetic resonance imaging (rs-fMRI) can reflect spontaneous neural activities in brain and is widely used for brain disorder analysis.Previous studies propose to extract fMRI representations through diverse…

定量方法 · 定量生物学 2023-06-27 Qianqian Wang , Wei Wang , Yuqi Fang , P. -T. Yap , Hongtu Zhu , Hong-Jun Li , Lishan Qiao , Mingxia Liu

Resting-state brain functional connectivity quantifies the synchrony between activity patterns of different brain regions. In functional magnetic resonance imaging (fMRI), each region comprises a set of spatially contiguous voxels at which…

统计方法学 · 统计学 2025-11-07 Ruobin Liu , Chao Zhang , Chau Tran , Sophie Achard , Wendy Meiring , Alexander Petersen