Task-based fmri - Open Access .click

Results 151 to 160 of about 24,679,585 (287)

Disrupted Brain Structure and Function in Alzheimer's Disease Patients With Behavioral and Psychological Symptoms

iNew Medicine, EarlyView.
ABSTRACT Objective Behavioral and psychological symptoms of dementia (BPSD) are highly prevalent in Alzheimer’s disease (AD), but the underlying mechanisms are unclear. This study aims to elucidate the neuropathological mechanisms underlying BPSD by investigating gray matter volume (GMV) and brain connectivity in AD patients with and without BPSD ...
Xuerui Pang +8 more
wiley +1 more source

Amygdala fMRI—A Critical Appraisal of the Extant Literature

Neuroscience Insights
Even before the advent of fMRI, the amygdala occupied a central space in the affective neurosciences. Yet this amygdala-centred view on emotion processing gained even wider acceptance after the inception of fMRI in the early 1990s, a landmark that ...
Tim Varkevisser, Elbert Geuze, Jack van Honk +2 more
doaj +1 more source

Low-intensity transcranial focused ultrasound of the amygdala modulates neural activation during emotion processing

Frontiers in Neuroimaging
IntroductionLow-intensity focused ultrasound (LIFU) is a form of neuromodulation that offers increased depth of penetrance and improved spatial resolution over other non-invasive techniques, allowing for modulation of otherwise inaccessible subcortical ...
Kathryn C. Jenkins +12 more
doaj +1 more source

STNAGNN: Spatiotemporal Node Attention Graph Neural Network for Task-based fMRI Analysis

Task-based fMRI uses actions or stimuli to trigger task-specific brain responses and measures them using BOLD contrast. Despite the significant task-induced spatiotemporal brain activation fluctuations, most studies on task-based fMRI ignore the task ...
Dvornek, Nicha C. +5 more
core

Analysis of individualized brain–gut association networks and transcriptional patterns in major depressive disorder

Interdisciplinary Medicine, EarlyView.
Individualized brain–gut association networks suggest potential neuropathological mechanisms in MDD and MDDSI. Multilevel brain–gut association changes involving HSV‐1 and inflammation may be relevant to MDD, whereas alterations related to insulin metabolism may play a potential role in the neuropathological mechanisms of MDDSI.
Wei Wang +10 more
wiley +1 more source

fMRI - Self-concept Task

The fMRI - Self-concept Task measures brain activity during the Self-concept Task, in which children are asked whether certain negative and positive traits fit ...
Leiden Consortium on Individual Development
core +1 more source

Intersite effects in task-based fMRI: the fBIRN Traveling Subjects

, 2017
Talk given during the "Harmonise This! Analyzing Diverse Neuroimaging Datasets" workshop at the 2015 Organization for Human Brain Mapping (OHBM) conference in Hawaii, 14-18 June.
openaire +1 more source

Ecological momentary assessment of momentary loneliness, body dissatisfaction, and dysregulated eating in adolescents

JCPP Advances, EarlyView.
Abstract Background This objective of this study was to use ecological momentary assessment (EMA) to investigate the relationships of momentary loneliness with body dissatisfaction and dysregulated eating in a diverse sample of adolescents as well as trait peer teasing as a moderator of associations.
Tyler B. Mason +3 more
wiley +1 more source

Sample size estimation for task-related functional MRI studies using Bayesian updating

Developmental Cognitive Neuroscience
Task-related functional MRI (fMRI) studies need to be properly powered with an adequate sample size to reliably detect effects of interest. But for most fMRI studies, it is not straightforward to determine a proper sample size using power calculations ...
Eduard T. Klapwijk +3 more
doaj +1 more source

Detecting task-based fMRI compliance using plan abandonment techniques [PDF]

GigaScience, 2016
Ramon Fraga Pereira +4 more
openaire +1 more source

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