Multi-Sequence Comparison of Temporal lobe fMRI Activation at 4.0 T
نویسندگان
چکیده
L. Cherpak, K. Brewer, J. Gawryluk, N. Pelot, C. Bowen, R. D'Arcy, and S. Beyea Institute for Biodiagnostics (Atlantic), National Research Council of Canada, Halifax, Nova Scotia, Canada, Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, Canada, Psychology, Dalhousie University, Halifax, Nova Scotia, Canada, Physics and Atmospheric Science, Radiology and Biomedical Engineering, Dalhousie University, Halifax, Nova Scotia, Canada
منابع مشابه
Comparison of rhyming and word generation with FMRI.
Functional magnetic resonance imaging (FMRI) has been successfully used to non-invasively map language function, but has several disadvantages. These include severe motion sensitivity, which limits overt verbal responses in behavioral paradigms, such as word generation. The lack of overt responses prevents behavioral validation, making data interpretation difficult. Our objective was to compare...
متن کاملComparison of spiral-in/out and spiral-out BOLD fMRI at 1.5 and 3 T.
Spiral-in/out functional magnetic resonance imaging (fMRI) methods acquire one image before the echo time (TE) and a second image after TE during each scan. Weighted combination of the two images provides a time series with reduced susceptibility dropout in frontal and medial temporal regions as well as increased signal-to-noise ratio (SNR) in regions of uniform cortex. In this study, task acti...
متن کاملAn fMRI Study of Risky Decision Making: The Role of Mental Preparation and Conflict
Introduction: The current study aimed to elucidate the role of preparatory cognitive control in decision making and its neural correlates using functional Magnetic Resonance Imaging (fMRI). To this effect, by employing a series of new cognitive tasks, we assessed the role of preparatory cognitive control in monetary (risky) decision making. Methods: The participants had to decide between a...
متن کاملComparison of temporal lobe epilepsy with hippocampal sclerosis and temporal lobe epilepsies due to other etiologies
Background: This study compares the clinical characteristics of patients with mesial temporal lobe epilepsy with hippocampal sclerosis (mTLE-HS) with those who have temporal lobe epilepsy (TLE) due to other etiologies. Methods : In this retrospective study all patients with a clinical diagnosis of TLE were recruited in a referral outpatient epilepsy clinic at Shiraz University of Medical Sc...
متن کاملComparison of fMRI activation as measured with gradient- and spin-echo EPI during visual perception.
In this study, we compared fMRI activation measured with gradient- and spin-echo-based fMRI during visual perception of faces, which is mediated by neural activation within a distributed cortical network. With both fMRI techniques, bilateral activation was observed in multiple regions including the inferior occipital gyrus, fusiform gyrus, superior temporal sulcus, amygdala, inferior frontal gy...
متن کامل