'Bold signal' presentation slideshows

Multivariate models for fMRI data

Klaas Enno Stephan (with 90% of slides kindly contributed by Kay H. Brodersen ) Translational Neuromodeling Unit (TNU) Institute for Biomedical Engineering University of Zurich & ETH Zurich. Multivariate models for fMRI data. Why multivariate?.

974 views • 74 slides

Functional MRI

Functional MRI. Daniel Bulte. Centre for Functional Magnetic Resonance Imaging of the Brain University of Oxford. Overview. BOLD Contrast Metabolic and cerebral blood flow response Mechanism of MR signal change Neurovascular coupling Noise Factors affecting BOLD More detail

1.67k views • 69 slides

1. Introduction to fMRI

1. Introduction to fMRI. 2. Basic fMRI Physics. 3. Data Analysis. 4. Localisation. 5. Cortical Anatomy. 1. Introduction to fMRI. MRI vs. fMRI. Functional MRI (fMRI) studies brain function. MRI studies brain anatomy. Brain Imaging: Anatomy. Brain Imaging: Anatomy. CAT. PET.

1.34k views • 66 slides

Peter A. Bandettini, Ph.D. Section on Functional Imaging Methods fim.nimh.nih

Contentious Issues in fMRI . Peter A. Bandettini, Ph.D. Section on Functional Imaging Methods http:// fim.nimh.nih.gov Laboratory of Brain and Cognition & Functional MRI Facility http:// fmrif.nimh.nih.gov. The Undershoots Negative signal changes Relationship to neuronal activity

821 views • 64 slides

Sonia Poltoratski Vanderbilt University

f MRI. Sonia Poltoratski Vanderbilt University. unbridled joy. brain picture. knowledge. data. intro psych. analysis. ...is the wild wild west. what is BOLD?. crippling depression. Outline:. MR Physics BOLD signal Basics of Analysis Evolution Good & Bad Practices. MR Physics.

690 views • 61 slides

Learning BOLD Response in fMRI by Reservoir Computing

Learning BOLD Response in fMRI by Reservoir Computing. Paolo Avesani 12 , Hananel Hazan 3 , Ester Koilis 3 , Larry Manevitz 3 , and Diego Sona 12 1 NeuroInformatics Laboratory ( NILab ), Fondazione Bruno Kessler, Trento, Italy

611 views • 47 slides

BOLD Imaging

1.6k views • 47 slides

Introduction to Connectivity: resting-state and PPI

Introduction to Connectivity: resting-state and PPI. Federica Biotti and Matilde Vaghi Expert: Dr Sarah Gregory Slides adapted from MfD 2015 Wednesday 28 th February 2018. Two fundamental properties of brain architecture. Functional Segregation LOCALIZATIONISM.

9.94k views • 45 slides

The physiology of the BOLD signal

The physiology of the BOLD signal. Klaas Enno Stephan Laboratory for Social and Neural Systems Research Institute for Empirical Research in Economics University of Zurich Functional Imaging Laboratory (FIL) Wellcome Trust Centre for Neuroimaging University College London.

569 views • 40 slides

Basis of the BOLD signal

Basis of the BOLD signal. Methods for Dummies 2012-2013 Lila Krishna Lucía Magis-Weinberg. PHYSICS. Overview. Hydrogen atoms have a magnetic moment and spin Hydrogen spins align with B0 (the scanner magnet) with two consequences : They start precessing with a resonance frequency

489 views • 36 slides

fMRI Design & Efficiency

484 views • 35 slides

PPI

PPI. Friston (1997) Gitelman (2003). Basic fMRI refreshments. Friston et al. 1997. Friston 1997. Introduction Aim: define PPI Address interpretation Basic idea: Correlation between areas changes as context changes. Effective connectivety efficasy and contributions.

655 views • 35 slides

Neuronal Activation

Measured Signal. Neuronal Activation. ?. ?. ?. ?. Hemodynamics. Noise. Dynamics Fluctuations Pattern Information Neuronal Current MRI. The BOLD Signal. B lood O xygenation L evel D ependent (BOLD) signal changes. task. task.

573 views • 35 slides

Calibration WG

Calibration WG. Overall goals:. 1. Develop and maintain scanner QA methods. Procedures on web site Paper in press: Friedman & Glover, JMRI. Develop and implement means for reducing intersite variations in fMRI sensitivity. Bonus Aim. Calibration WG.

403 views • 26 slides

442 views • 24 slides

"The Potential of Multimodal MRI for Understanding Sports Concussion"

"The Potential of Multimodal MRI for Understanding Sports Concussion". Victoria Morgan, Ph.D., Manus Donahue, Ph.D., Megan Strother , M.D., Allen Sills, M.D., Andrew Gregory, M.D., Gary Solomon, Ph.D., and Hakmook Kang, Ph.D. The Challenge: .

296 views • 19 slides

The General Linear Model

The General Linear Model. Guillaume Flandin Wellcome Trust Centre for Neuroimaging University College London. SPM fMRI Course London, May 2012. Image time-series. Statistical Parametric Map. Design matrix. Spatial filter. Realignment. Smoothing. General Linear Model.

347 views • 19 slides

Motor Inhibition and the BOLD response in the primary motor cortex

Motor Inhibition and the BOLD response in the primary motor cortex. Archana Purushotham, James Ashe & Seong-Gi Kim Center for Magnetic Resonance Research, Departments of Biomedical Engineering and Neuroscience, University of Minnesota. Introduction.

324 views • 15 slides

fMRI: Biological Basis and Experiment Design Lecture 13: BOLD

fMRI: Biological Basis and Experiment Design Lecture 13: BOLD. Neurons per voxel Neural signaling Neural/vascular link? HRF linearity. 1 light year = 5,913,000,000,000 miles?. Signal is low where T 2 * is short. Signal will increase where blood flow increases.

279 views • 10 slides

2. Preservation of Cortical Activity

How can we ascribe consciousness: Finding the Voice of Vegetative State Patients. Aghaki -Allen L, Berger R, McKenna O, Sainsbury T and Vinsland E. . Introduction.

101 views • 1 slides