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The determination of biological brain age is a crucial biomarker in the assessment of neurological disorders and understanding of the morphological changes that occur during aging. Various machine learning models have been proposed for…

Image and Video Processing · Electrical Eng. & Systems 2023-06-12 Mansoor Ahmed , Usama Sardar , Sarwan Ali , Shafiq Alam , Murray Patterson , Imdad Ullah Khan

Numerous studies have established that estimated brain age, as derived from statistical models trained on healthy populations, constitutes a valuable biomarker that is predictive of cognitive decline and various neurological diseases. In…

Computer Vision and Pattern Recognition · Computer Science 2019-07-02 Xinyang Feng , Zachary C. Lipton , Jie Yang , Scott A. Small , Frank A. Provenzano

Spontaneous brain activity generically displays transient spatiotemporal coherent structures, which can selectively be affected in various neurological and psychiatric pathologies. Here we model the full brain's electroencephalographic…

Neurons and Cognition · Quantitative Biology 2025-02-25 Annalisa Caligiuri , David Papo , Görsev Yener , Bahar Güntekin , Tobias Galla , Lucas Lacasa , Massimiliano Zanin

Age is an important variable to describe the expected brain's anatomy status across the normal aging trajectory. The deviation from that normative aging trajectory may provide some insights into neurological diseases. In neuroimaging,…

Computer Vision and Pattern Recognition · Computer Science 2023-04-14 Huy-Dung Nguyen , Michaël Clément , Boris Mansencal , Pierrick Coupé

The accurate quantification of brain age from MRI has emerged as an important biomarker of brain health. However, existing approaches are often restricted to narrow age ranges and single-modality MRI data, limiting their capacity to capture…

Image and Video Processing · Electrical Eng. & Systems 2026-04-21 Dingyi Zhang , Ruiying Liu , Yun Wang

Predicting brain maturity using noninvasive magnetic resonance images (MRI) can distinguish different age groups and help to assess neurodevelopmental disorders. However, group-wise differences are often less informative for assessing…

Neurons and Cognition · Quantitative Biology 2014-12-17 Cheol E. Han , Luis R. Peraza , John-Paul Taylor , Marcus Kaiser

A Covariance-on-Covariance regression model is introduced in this manuscript. It is assumed that there exists (at least) a pair of linear projections on outcome covariance matrices and predictor covariance matrices such that a log-linear…

Methodology · Statistics 2022-12-21 Yi Zhao , Yize Zhao

Brain age estimation from Magnetic Resonance Images (MRI) derives the difference between a subject's biological brain age and their chronological age. This is a potential biomarker for neurodegeneration, e.g. as part of Alzheimer's disease.…

Computer Vision and Pattern Recognition · Computer Science 2020-10-02 Kyriaki-Margarita Bintsi , Vasileios Baltatzis , Arinbjörn Kolbeinsson , Alexander Hammers , Daniel Rueckert

Brain age estimation is clinically important as it can provide valuable information in the context of neurodegenerative diseases such as Alzheimer's. Population graphs, which include multimodal imaging information of the subjects along with…

How will my face look when I get older? Or, for a more challenging question: How will my brain look when I get older? To answer this question one must devise (and learn from data) a multivariate auto-regressive function which given an image…

Image and Video Processing · Electrical Eng. & Systems 2021-10-01 Tian Xia , Agisilaos Chartsias , Chengjia Wang , Sotirios A. Tsaftaris

Machine learning models for continuous outcomes often yield systematically biased predictions, particularly for values that largely deviate from the mean. Specifically, predictions for large-valued outcomes tend to be negatively biased…

Machine Learning · Statistics 2024-09-05 Hwiyoung Lee , Shuo Chen

Deep learning models have achieved state-of-the-art results in estimating brain age, which is an important brain health biomarker, from magnetic resonance (MR) images. However, most of these models only provide a global age prediction, and…

Image and Video Processing · Electrical Eng. & Systems 2023-08-25 Neha Gianchandani , Mahsa Dibaji , Mariana Bento , Ethan MacDonald , Roberto Souza

The characterisation of the brain as a "connectome", in which the connections are represented by correlational values across timeseries and as summary measures derived from graph theory analyses, has been very popular in the last years.…

Machine Learning · Computer Science 2020-03-13 Tiago Azevedo , Luca Passamonti , Pietro Liò , Nicola Toschi

Brain aging, and more specifically the difference between the chronological and the biological age of a person, may be a promising biomarker for identifying neurodegenerative diseases. For this purpose accurate prediction is important but…

Image and Video Processing · Electrical Eng. & Systems 2021-08-29 Kyriaki-Margarita Bintsi , Vasileios Baltatzis , Alexander Hammers , Daniel Rueckert

Our knowledge of the organisation of the human brain at the population-level is yet to translate into power to predict functional differences at the individual-level, limiting clinical applications, and casting doubt on the generalisability…

Neurons and Cognition · Quantitative Biology 2024-04-04 James K Ruffle , Robert J Gray , Samia Mohinta , Guilherme Pombo , Chaitanya Kaul , Harpreet Hyare , Geraint Rees , Parashkev Nachev

Understanding the relationship between the dynamics of neural processes and the anatomical substrate of the brain is a central question in neuroscience. On the one hand, modern neuroimaging technologies, such as diffusion tensor imaging,…

Brain age prediction using neuroimaging data has shown great potential as an indicator of overall brain health and successful aging, as well as a disease biomarker. Deep learning models have been established as reliable and efficient brain…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Bruno Machado Pacheco , Victor Hugo Rocha de Oliveira , Augusto Braga Fernandes Antunes , Saulo Domingos de Souza Pedro , Danilo Silva

Analyzing and predicting brain aging is essential for early prognosis and accurate diagnosis of cognitive diseases. The technique of neuroimaging, such as Magnetic Resonance Imaging (MRI), provides a noninvasive means of observing the aging…

Image and Video Processing · Electrical Eng. & Systems 2022-12-06 Jingru Fu , Antonios Tzortzakakis , José Barroso , Eric Westman , Daniel Ferreira , Rodrigo Moreno

Functional connectivity refers to the temporal statistical relationship between spatially distinct brain regions and is usually inferred from the time series coherence/correlation in brain activity between regions of interest. In human…

Machine Learning · Statistics 2015-03-02 Shaurabh Nandy , Richard M. Golden

Brain age prediction serves as a powerful framework for assessing brain status and detecting deviations associated with neurodevelopmental and neurodegenerative disorders. However, most existing approaches emphasize whole-brain age…

Neurons and Cognition · Quantitative Biology 2026-02-10 Rongzhao He , Dalin Zhu , Ying Wang , Songhong Yue , Leilei Zhao , Yu Fu , Dan Wu , Bin Hu , Weihao Zheng