Results 61 to 70 of about 14,679 (138)

Reduced Brain Activity in the Right Putamen as an Early Predictor for Treatment Response in Drug-Naive, First-Episode Schizophrenia

open access: yesFrontiers in Psychiatry, 2019
Antipsychotic medications can have a significant effect on brain function after only several days of treatment. It is unclear whether such an acute effect can serve as an early predictor for treatment response in schizophrenia.
Renrong Wu   +12 more
doaj   +1 more source

Transdiagnostic markers across the psychosis continuum: a systematic review and meta-analysis of resting state fMRI studies

open access: yesFrontiers in Psychiatry
Psychotic symptoms are among the most debilitating and challenging presentations of severe psychiatric diseases, such as schizophrenia, schizoaffective, and bipolar disorder.
Giuseppe Pierpaolo Merola   +10 more
doaj   +1 more source

Altered spontaneous brain activity patterns in hypertensive retinopathy using fractional amplitude of low-frequency fluctuations: a functional magnetic resonance imaging study [PDF]

open access: yesInternational Journal of Ophthalmology
AIM: To study functional brain abnormalities in patients with hypertensive retinopathy (HR) and to discuss the pathophysiological mechanisms of HR by fractional amplitude of low-frequency fluctuations (fALFFs) method.
Xue-Lin Wang   +10 more
doaj   +1 more source

Delay discounting is associated with the fractional amplitude of low-frequency fluctuations and resting-state functional connectivity in late adolescence [PDF]

open access: yesScientific Reports, 2017
AbstractAs a component of self-regulation, delay discounting (DD) refers to an individual’s tendency to prefer smaller-but-sooner rewards over larger-but-later rewards and plays an essential role in many aspects of human behavior. Although numerous studies have examined the neural underpinnings of DD in adults, there are far fewer studies focusing on ...
Wang, Song   +5 more
openaire   +2 more sources

Static and temporal dynamic changes in brain activity in patients with post-stroke balance dysfunction: a pilot resting state fMRI

open access: yesFrontiers in Neuroscience
ObjectiveThe aim of this study was to investigate the characteristics of brain activity changes in patients with post-stroke balance dysfunction and their relationship with clinical assessment, and to construct a classification model based on the extreme
Zhiqing Tang   +20 more
doaj   +1 more source

Dynamic alterations in spontaneous neural activity in patients with attention-deficit/hyperactivity disorder: A resting-state fMRI study

open access: yesBrain Research Bulletin
Background: To investigate the change of dynamic amplitude of low-frequency fluctuation (dALFF) and dynamic fractional amplitude of low-frequency fluctuation (dfALFF) in patients with attention-deficit/hyperactivity disorder (ADHD), and to explore ...
Rui Hu   +7 more
doaj   +1 more source

Abnormal Fractional Amplitude of Low-frequency Fluctuation Changes in Patients With Diabetic Optic Neuropathy: a Functional MRI Study

open access: yes, 2021
The present study was to assess the spontaneous changes in brain activity in patients with DON using functional magnetic resonance imaging (fMRI). 14 DON patients and 14 healthy controls (HCs) were enrolled.
Wen-Feng Liu   +8 more
semanticscholar   +1 more source

Frequency-dependent changes in the amplitude of low-frequency fluctuations in post stroke apathy: a resting-state fMRI study

open access: yesFrontiers in Psychiatry
BackgroundApathy is a prevalent psychiatric condition after stroke, affecting approximately 30% of stroke survivors. It is associated with slower recovery and an increased risk of depression. Understanding the pathophysiological mechanisms of post stroke
Ying Liu   +15 more
doaj   +1 more source

Characterizing Static and Dynamic Fractional Amplitude of Low-Frequency Fluctuation and its Prediction of Clinical Dysfunction in Patients with Diffuse Axonal Injury.

open access: yesAcademic Radiology, 2020
RATIONALE AND OBJECTIVES Recently, advanced magnetic resonance imaging has been widely adopted to investigate altered structure and functional activities in patients with diffuse axonal injury (DAI), this patient presumed to be caused by shearing forces ...
F. Zhou   +7 more
semanticscholar   +1 more source

Structural and functional characterization of nucleus accumbens as a potential biomarker of the transition from acute to chronic pain after thoracoscopic surgery

open access: yesAnesthesiology and Perioperative Science
Purpose Chronic postsurgical pain (CPSP) poses substantial therapeutic and preventive challenges as a common postoperative complication. Identifying predictive biomarkers could enable early intervention in high-risk patients.
Yangzi Zhu   +8 more
doaj   +1 more source

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