نتایج جستجو برای: fmri

تعداد نتایج: 36356  

Journal: :The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry 2012
Andrea Caria Ranganatha Sitaram Niels Birbaumer

Real-time fMRI permits simultaneous measurement and observation of brain activity during an ongoing task. One of the most challenging applications of real-time fMRI in neuroscientific and clinical research is the possibility of acquiring volitional control of localized brain activity using real-time fMRI-based neurofeedback protocols. Real-time fMRI allows the experimenter to noninvasively mani...

Journal: :Molecular Pain 2006
David Borsook Lino R Becerra

This review summarizes functional magnetic resonance imaging (fMRI) findings that have informed our current understanding of pain, analgesia and related phenomena, and discusses the potential role of fMRI in improved therapeutic approaches to pain. It is divided into 3 main sections: (1) fMRI studies of acute and chronic pain. Physiological studies of pain have found numerous regions of the bra...

2018
Michael A. Silva Alfred P. See Walid I. Essayed Alexandra J. Golby Yanmei Tie

Functional magnetic resonance imaging (fMRI) is increasingly used for preoperative counseling and planning, and intraoperative guidance for tumor resection in the eloquent cortex. Although there have been improvements in image resolution and artifact correction, there are still limitations of this modality. In this review, we discuss clinical fMRI's applications, limitations and potential solut...

Journal: :Multiple sclerosis 2016
Christian Enzinger Daniela Pinter Maria A Rocca John De Luca Jaume Sastre-Garriga Bertrand Audoin Massimo Filippi

Functional magnetic resonance imaging (fMRI) has greatly advanced our understanding of cerebral functional changes occurring in patients with multiple sclerosis (MS). However, most of our knowledge regarding brain plasticity and repair in MS as evidenced by fMRI has been extrapolated from cross-sectional studies across different phenotypes of the disease. This topical review provides an overvie...

Journal: :Trends in neurosciences 2009
Emrah Düzel Nico Bunzeck Marc Guitart-Masip Bianca Wittmann Bjoern H Schott Philippe N Tobler

Invasive recording of dopamine neurons in the substantia nigra and ventral tegmental area (SN/VTA) of behaving animals suggests a role for these neurons in reward learning and novelty processing. In humans, functional magnetic resonance imaging (fMRI) is currently the only non-invasive event-related method to measure SN/VTA activity, but it is debated to what extent fMRI enables inference about...

2016
Woo H. Shim Ji-Yeon Suh Jeong K. Kim Jaeseung Jeong Young R. Kim

Neurological recovery after stroke has been extensively investigated to provide better understanding of neurobiological mechanism, therapy, and patient management. Recent advances in neuroimaging techniques, particularly functional MRI (fMRI), have widely contributed to unravel the relationship between the altered neural function and stroke-affected brain areas. As results of previous investiga...

Journal: :NeuroImage 2014
Xiaopeng Zong Juyoung Lee Alexander John Poplawsky Seong-Gi Kim Jong Chul Ye

Compressed sensing (CS) may be useful for accelerating data acquisitions in high-resolution fMRI. However, due to the inherent slow temporal dynamics of the hemodynamic signals and concerns of potential statistical power loss, the CS approach for fMRI (CS-fMRI) has not been extensively investigated. To evaluate the utility of CS in fMRI application, we systematically investigated the properties...

2016
Alex Teghipco Ali Hussain Madalina E. Tivarus

Pre-operative assessment of language localization and lateralization is critical to preserving brain function after lesion or epileptogenic tissue resection. Task fMRI (t-fMRI) has been extensively and reliably used to this end, but resting state fMRI (rs-fMRI) is emerging as an alternative pre-operative brain mapping method that is independent of a patient's ability to comply with a task. We s...

2015
Jun Ki Lee Chang Hyun Oh Ji Yong Kim Hyung-Chun Park Seung Hwan Yoon

OBJECTIVE The purpose of this study is to determine whether the changes of contralateral sensorimotor cortical activation on functional magnetic resonance imaging (fMRI) can predict the neurological outcome among spinal cord injury (SCI) patients when the great toes are stimulated without notice. METHODS This study enrolled a total of 49 patients with SCI and investigated each patient's preop...

Journal: :Annals of the New York Academy of Sciences 2010
Craig M Bennett Michael B Miller

Functional magnetic resonance imaging (fMRI) is one of the most important methods for in vivo investigation of cognitive processes in the human brain. Within the last two decades, an explosion of research has emerged using fMRI, revealing the underpinnings of everything from motor and sensory processes to the foundations of social cognition. While these results have revealed the potential of ne...

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