Results 1 to 10 of about 834 (68)

Statistical Analysis of fMRI Time-Series: A Critical Review of the GLM Approach

open access: yesFrontiers in Human Neuroscience, 2011
Functional Magnetic Resonance Imaging (fMRI) is one of the most widely used tools to study the neural underpinnings of human cognition. Standard analysis of fMRI data relies on a General Linear Model (GLM) approach to separate stimulus induced signals ...
Martin M Monti
doaj   +3 more sources

Enhanced design matrix for task-related fMRI data analysis

open access: yesNeuroImage, 2021
In this paper, we introduce a novel methodology for the analysis of task-related fMRI data. In particular, we propose an alternative way for constructing the design matrix, based on the newly suggested Information-Assisted Dictionary Learning (IADL ...
Manuel Morante   +4 more
doaj   +1 more source

On Constrained Principal Component (CPCA) with Application on Bootstrap [PDF]

open access: yesThe Egyptian Statistical Journal, 2018
Linear model (LM) provide the advance in regression analysis, where it was consideres an important development of the last 45 years, following general linear model (GLM), principal component analysis (PCA) and constrained principal component analysis ...
Alaa Abd Elmegaly, Salah Mohamed
doaj   +1 more source

Functional transcranial Doppler: Selection of methods for statistical analysis and representation of changes in flow velocity

open access: yesHealth Science Reports, 2021
Introduction Transcranial Doppler (TCD) is a method used to study cerebral hemodynamics. In the majority of TCD studies, regression analysis and analysis of variance are the most frequently applied statistical methods.
Stephan T. Egger   +4 more
doaj   +1 more source

Habit-DisHabit Design with a Quadratic Equation: A Better Model of the Hemodynamic Changes in Preschoolers during the Dimension Change Card Sorting Task

open access: yesChildren, 2023
General linear modeling (GLM) has been widely employed to estimate the hemodynamic changes observed by functional near infrared spectroscopy (fNIRS) technology, which are found to be nonlinear rather than linear, however.
Dandan Wu   +5 more
doaj   +1 more source

Novel Ensemble Approaches of Machine Learning Techniques in Modeling the Gully Erosion Susceptibility

open access: yesRemote Sensing, 2020
Gully erosion has become one of the major environmental issues, due to the severity of its impact in many parts of the world. Gully erosion directly and indirectly affects agriculture and infrastructural development.
Alireza Arabameri   +6 more
doaj   +1 more source

Modelling Impulse Response Function of Functional Infrared Imaging for General Linear Model Analysis of Autonomic Activity

open access: yesSensors, 2019
Functional infrared imaging (fIRI) is a validated procedure to infer autonomic arousal. Currently, fIRI signals are analysed through descriptive metrics, such as average temperature changes in a region of interest (ROI).
David Perpetuini   +4 more
doaj   +1 more source

Inter-subject correlation in fMRI: method validation against stimulus-model based analysis. [PDF]

open access: yesPLoS ONE, 2012
Within functional magnetic resonance imaging (fMRI), the use of the traditional general linear model (GLM) based analysis methods is often restricted to strictly controlled research setups requiring a parametric activation model.
Juha Pajula   +3 more
doaj   +1 more source

Spatial Bayesian GLM on the cortical surface produces reliable task activations in individuals and groups

open access: yesNeuroImage, 2022
The general linear model (GLM) is a widely popular and convenient tool for estimating the functional brain response and identifying areas of significant activation during a task or stimulus.
Daniel Spencer   +4 more
doaj   +1 more source

Identification of microsatellite markers linked to grain discoloration disease in rice genotypes [PDF]

open access: yesمجله بیوتکنولوژی کشاورزی, 2020
Objective Rice grain discoloration disease is emerging as a major threat in improved and late ripening varieties in the north of Iran that deteriorates grain quality and physical properties.
Somayeh Dariush   +2 more
doaj   +1 more source

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