Results 11 to 20 of about 1,285,227 (187)

Neural network for step anomaly detection in head motion during fMRI using meta-learning adaptation

open access: yesКомпьютерная оптика, 2023
Quality assessment and artifact detection in functional magnetic resonance imaging (fMRI) data is essential for clinical applications and brain research.
N.S. Davydov   +5 more
doaj   +2 more sources

Domain Adaptation Using a Three-Way Decision Improves the Identification of Autism Patients from Multisite fMRI Data

open access: yesBrain Sciences, 2021
Machine learning methods are widely used in autism spectrum disorder (ASD) diagnosis. Due to the lack of labelled ASD data, multisite data are often pooled together to expand the sample size.
Chunlei Shi, Xianwei Xin, Jiacai Zhang
doaj   +2 more sources

The selectivity of responses to red-green colour and achromatic contrast in the human visual cortex: an fMRI adaptation study. [PDF]

open access: yesEur J Neurosci, 2015
There is controversy as to how responses to colour in the human brain are organized within the visual pathways. A key issue is whether there are modular pathways that respond selectively to colour or whether there are common neural substrates for both ...
Mullen KT, Chang DH, Hess RF.
europepmc   +2 more sources

Underlying mechanisms of visual mismatch responses – An EEG-fMRI study [PDF]

open access: yesiScience
Summary: Unexpected compared to expected visual events are accompanied by stronger neural responses. Two key mechanisms for these heightened responses are prediction errors to oddballs and adaptation to frequent stimuli.
Insa Schlossmacher   +9 more
doaj   +2 more sources

Visual adaptation and 7T fMRI reveal facial identity processing in the human brain under shallow interocular suppression

open access: yesNeuroImage, 2021
Face identity is represented at a high level of the visual hierarchy. Whether the human brain can process facial identity information in the absence of visual awareness remains unclear.
Runnan Cao   +5 more
doaj   +2 more sources

Cerebral Metabolic Changes During Visuomotor Adaptation Assessed Using Quantitative fMRI [PDF]

open access: yesFrontiers in Physiology, 2020
The brain retains a lifelong ability to adapt through learning and in response to injury or disease-related damage, a process known as functional neuroplasticity.
Catherine Foster   +10 more
doaj   +3 more sources

Numerosity adaptation suppresses early visual responses [PDF]

open access: yesCommunications Biology
Humans and many other animals possess an innate ability to rapidly perceive numerosity: the number of objects in a visual scene. Numerosity perception is influenced by adaptation, whereby previously viewed numerosities affect perception of the current ...
Liangyou Zhang   +5 more
doaj   +2 more sources

Traits are represented in the medial prefrontal cortex: an fMRI adaptation study. [PDF]

open access: yesSoc Cogn Affect Neurosci, 2014
Neuroimaging studies on trait inference about the self and others have found a network of brain areas, the critical part of which appears to be medial prefrontal cortex (mPFC).
Ma N   +5 more
europepmc   +2 more sources

VAE deep learning model with domain adaptation, transfer learning and harmonization for diagnostic classification from multi-site neuroimaging data [PDF]

open access: yesFrontiers in Neuroinformatics
In large public multi-site fMRI datasets, the sample characteristics, data acquisition methods, and MRI scanner models vary across sites and datasets.
Gopikrishna Deshpande   +8 more
doaj   +2 more sources

Feature-based attention affects direction-selective fMRI adaptation in hMT+. [PDF]

open access: yesCerebral Cortex, 2013
Functional magnetic resonance adaptation has been successfully used to reveal direction-selective responses in the human motion complex (hMT+). Here, we aimed at further investigating direction-selective as well as position-selective responses of hMT+ by looking at how these responses are affected by feature-based attention.
S. Weigelt, W. Singer, A. Kohler
semanticscholar   +6 more sources

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