Week of |
Tuesday |
Thursday |
| 9/30 |
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MRI Basics
Required readings
Chapters 1 & 2 of Huettel, et al.
The slides and figures for this talk can be found at:
MRI Teaching Slides
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| 10/5 |
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Neurovascular Coupling
Chapter 6 of Huettel
"A model for the coupling between cerebral blood flow and oxygen metabolism during neural stimulation.", Buxton RB, Frank LR, J Cereb Blood Flow Metab 1997 Jan;17(1):64-72 [PDF]
"Single-neuron activity and tissue oxygenation in the cerebral cortex." Thompson JK, Peterson MR, Freeman RD. Science. 2003 Feb 14;299(5609):1070-2. [PDF]
A Primer on Convolution
Optional readings:
"Dynamics of blood flow and oxygenation changes during brain activation: the balloon model."Buxton, RB; Wong, EC; Frank, LR., Magnetic Resonance in Medicine, 1998 Jun, 39(6):855-64. [PDF]
"Persistent resetting of the cerebral oxygen/glucose uptake ratio by brain activation: evidence obtained with the Kety-Schmidt technique." Madsen PL, Hasselbalch SG, Hagemann LP, Olsen KS, Bulow J, Holm S, et al. J Cereb Blood Flow Metab 1995; 15: 485-91. [PDF]
"Neuron-to-astrocyte signaling is central to the dynamic control of brain microcirculation." Zonta, M, et al., Nat Neurosci. 2003 Jan;6(1):43-50 [PDF]
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| 10/12 |
fMRI
- History of fMRI
- Flavors of fMRI
- Models of the fMRI signal
Required Readings:
Chapter 7 of Huettel et al.
Neurophysiological investigation of the basis of the fMRI signal" Logothetis, N. K., Pauls, J., Augath, M., Trinath, T., Oeltermann, A. Nature 412:150-157. 2001 [PDF]
Localization of Brain Function by Magnetic Resonance Imaging
- Added 10/12 : Some notes on Convolution
Optional Readings:
Basic Theoretical Models of BOLD Signal Change, RM Weisskoff, in Moonen and Bandettini, "Functional MRI" Springer, 1999
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Experimental Design I: Concepts
How can we map cognitive concepts onto brain activity?
- Subtractive Logic
- Conjunction Analysis
- Parametric and Factorial Designs
- Adaptation/Priming Designs
- The Concept of a "baseline"
We had a special optional session on the Fourier transform. The notes to which are [here].
matlab: Fourier analysis of blocked designs
Required readings:
Chapter 11 of Huettel, et al.
Friston, KJ; Price, CJ; Fletcher, P; Moore, C; Frackowiak, RS; Dolan, RJ. "The trouble with cognitive subtraction." Neuroimage, 1996 Oct, 4(2):97-104 [PDF]
 "Experimental Design for Brain fMRI" Aguirre, GK, D'Esposito, M. in Moonen and Bandettini, "Functional MRI" Springer, 1999
Optional Readings:
"Searching for a baseline: functional imaging and the resting human brain." Gusnard DA, Raichle ME, Raichle ME. Nat Rev Neurosci. 2001 Oct;2(10):685-94. [PDF]
Caplan D, Moo L. Cognitive conjunction and cognitive functions. Neuroimage. 2004 Feb;21(2):751-6. [PDF]
Grill-Spector K, Malach R. fMR-adaptation: a tool for studying the functional properties of human cortical neurons. Acta Psychol (Amst). 2001 Apr;107(1-3):293-321. [PDF]
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| 10/19 |
Analysis I: The General Linear Model
- Linear systems analysis
- The general linear model
- Assumptions of the GLM
- Temporal autocorrelation
- pre-whitening
Required Readings:
Chapter 12 (p. 321-343) and Chapter 8 (p. 206-214) of Huettel et al.
Tom Wickens' GLM basics from IPAM MBI 2004 [PDF]
Optional Readings:
Woolrich MW, Ripley BD, Brady M, Smith SM. Temporal autocorrelation in univariate linear modeling of FMRI data. Neuroimage. 2001 Dec;14(6):1370-86. [PDF]
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Experimental Design II
- Blocked versus event-related designs
- Hybrid designs
- Design efficiency and optimization
- Modeling trial components
- Subject-paced designs
- Sparse sampling designs
"Event-related Functional MRI" Buckner, RL and Braver, TS, in Moonen and Bandettini, "Functional MRI" Springer, 1999
Dale AM. Optimal experimental design for event-related fMRI.
Hum Brain Mapp. 1999;8(2-3):109-14. [PDF]
Optional readings:
Zarahn E. Testing for neural responses during temporal components of trials with BOLD fMRI. Neuroimage. 2000 Jun;11(6 Pt 1):783-96. [PDF]
Liu TT, Frank LR, Wong EC, Buxton RB. Detection power, estimation efficiency, and predictability in event-related fMRI. Neuroimage. 2001 Apr;13(4):759-73. [PDF]
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| 10/26 |
NO CLASS
Society for Neuroscience
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Analysis II
- Multiple tests
- Gaussian random fields
- False discovery rate
- Nonparametric methods
- Bayesian models
- Modeling connectivity
Chapter 12 (p. 343-356) of Huettel et al.
Genovese CR, Lazar NA, Nichols T. Thresholding of statistical maps in functional neuroimaging using the false discovery rate. Neuroimage. 2002 Apr;15(4):870-8. [PDF]
Chris Genovese's Bayesian modeling slides from IPAM MBI 2004 [PDF]
Optional readings:
Petersson KM, Nichols TE, Poline JB, Holmes AP. Statistical limitations in functional neuroimaging. I. Non-inferential methods and statistical models. Philos Trans R Soc Lond B Biol Sci. 1999 Jul 29;354(1387):1239-60. [PDF]
Petersson KM, Nichols TE, Poline JB, Holmes AP. Statistical limitations in functional neuroimaging. II. Signal detection and statistical inference. Philos Trans R Soc Lond B Biol Sci. 1999 Jul 29;354(1387):1261-81. [PDF]
McIntosh. "Understanding neural interactions in learning and memory using functional neuroimaging" Annals of the New York Academy of Sciences 855:556-571 (1998). [PDF]
Nichols T, Hayasaka S. Controlling the Familywise Error Rate in Functional Neuroimaging: A Comparative Review. Statistical Methods in Medical Research, 12(5): 419-446, 2003. [PDF]
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| 11/2 |
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| 11/9 |
Physical and Physiological Limitations and Tradeoffs
- Sources and nature of noise in fMRI
- Determinants of fMRI signals
- Field strength
- Coil design
- Spatial and temporal resolution of fMRI
Limitations teaching slides
Required readings:
Chapter 8 (p. 185-206) and Chapter 9 of Huettel et al.
A collection of MR Artifacts
Wayne Patola's MR artifacts
Syrinx artifact paper
Motion Artifacts
D. J. McGonigle, A. M. Howseman, B. S. Athwal, K. J. Friston, R. S. J. Frackowiak, and A. P. Holmes, "Variability in fMRI: An Examination of Intersession Differences", NeuroImage 11, 708–734 2000. [PDF]
Hajnal, JV., Myers R, Oatridge A, Schwieso JE., Young IR."Artifacts Due to Stimulus Correlated Motion in Functional Imaging of the Brain" Magnetic Resonance in Medicine 31(3):281. 1994 (Sorry, this is not available in PDF at this time.)
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Scanner Demo
We will bring in (at least) one of the student-designed projects and perform the experiment. This session takes place on Veteran's day (sorry). We would appreciate volunteers to participate.
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| 11/16 |
Practical Data Processing
In this session we will use available processing tools to extract functional data acquired in the demo, using FSL and AFNI.
Data processing teaching slides
Problem set 5 - due 11/23!
Required readings:
FSL Documentation
AFNI documentation pages
Bandettini, PA; Jesmanowicz, A; Wong, EC; Hyde, JS. Processing strategies for time-course data sets in functional MRI of the human brain. Magnetic Resonance in Medicine, 1993 Aug, 30(2):161-73 [PDF]
Optional readings:
Friston, K J; Holmes, A P; Worsley, K J; Poline, J-P; Frith, C D; Frackowiak, R S J. Statistical parametric maps in functional imaging: A general linear approach. Human Brain Mapping, v.2, n.4, 1994-1995:189-210 [PDF]
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Quality control and data pre-processing
- Quality control and artifact detection
- Introduction to spatial processing
- Linear and nonlinear transforms
- Correction of spatial distortions
- B0 field mapping and unwarping
- Motion correction
- The problem of task-correlated motion
- Spin-history effects
- Including motion in the statistical model
- Slice timing correction
- Spatial smoothing
Chapter 10 of Huettel et al.
Optional readings:
Bullmore ET, Brammer MJ, Rabe-Hesketh S, Curtis VA, Morris RG, Williams SC, Sharma T, McGuire PK. Methods for diagnosis and treatment of stimulus-correlated motion in generic brain activation studies using fMRI. Hum Brain Mapp. 1999;7(1):38-48. [PDF]
Friston KJ, Williams S, Howard R, Frackowiak RS, Turner R.
Movement-related effects in fMRI time-series. Magn Reson Med. 1996 Mar;35(3):346-55. (may be replaced!) [PDF]
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| 11/23 |
Spatial Normalization
Guest Lecturer: Paul Thompson
- Atlases for neuroimaging
- Methods for spatial normalization
- Volume-based methods
- Surface-based methods
- Region-of-interest methods
Problem set 6 - due 12/2
Required readings:
Brett M, Johnsrude IS, Owen AM. The problem of functional localization in the human brain. Nat Rev Neurosci. 2002 Mar;3(3):243-9. [PDF]
Van Essen, DC; Drury, HA; Joshi, S; Miller, MI. Functional and structural mapping of human cerebral cortex: solutions are in the surfaces. Proceedings of the National Academy of Sciences of the United States of America, 1998 Feb 3, 95(3):788-95. [PDF]
Thompson PM, Giedd JN, Woods RP, MacDonald D, Evans AC, Toga AW. "Growth patterns in the developing brain detected by using continuum mechanical tensor maps. Nature, 2000 404(9):190-193. [PDF]
Michael M. Zeineh, Stephen A. Engel, Paul M. Thompson, Susan Y. Bookheimer. 'Dynamics of the Hippocampus During Encoding and Retrieval of Face-Name Pairs", Science 2003. 299(24):577-560. [PDF]
Watson JDG, Myers R, Frackowiak RSJ, Hajnal JV, Woods RP, Mazziotta JC, Shipp S, Zeki S "Area V5 of the human brain: evidence from a combined study using positron emission tomography and magnetic resonance imaging." Cerebral Cortex 3, 79-94, 1993. [PDF???]
Optional readings:
Ashburner J, Friston, KJ. Image registration. in Moonen and Bandettini, "Functional MRI" Springer, 1999 [PDF] (A fairly mathy but very solid introduction to volume-based registration techniques)
Amunts K, Schleicher A, Ditterich A, Zilles K. Broca's region: cytoarchitectonic asymmetry and developmental changes. J Comp Neurol. 2003 Oct 6;465(1):72-89. [PDF]
Roger Woods' pages on spatial transformation models in AIR
thompson, woods? tbd
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Happy Thanksgiving! |
| 11/30 |
Group Statistics
Approaches to group analyses:
- region-based analyses
- summary statistics approach
- mixed-effects modeling
- Power analyses and sample size
Beckmann CF, Jenkinson M, Smith SM. General multilevel linear modeling for group analysis in FMRI. Neuroimage. 2003 Oct;20(2):1052-63. [PDF]
Desmond JE, Glover GH. Estimating sample size in functional MRI (fMRI) neuroimaging studies: statistical power analyses. J Neurosci Methods. 2002 Aug 30;118(2):115-28. [PDF]
Smith, S., Beckmann, C., Ramnani, N., Woolrich, M., Bannister, P., Jenkinson, M., Matthews, P., and McGonigle, D. (2004). Variability in FMRI: A re-examination of intersession differences. Human Brain Mapping, in press. [PDF]
Optional readings:
Friston KJ, Holmes AP, Worsley KJ. How many subjects constitute a study? Neuroimage. 1999 Jul;10(1):1-5. [PDF]
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Other stuff
This class session will introduce a number of novel methods of data analysis that are either model-free and attempt to expose latent variables in the data or are driven by non-traditional independent variables.
- Machine Learning
- Resting States
- Model-free analyses (PCA/ICA)
Teaching slides
Problem set 7 - due 12/9
Required readings:
Resting states
Biswal, et al., "Simultaneous Assessment of Flow and BOLD Signals in Resting-State Functional Connectivity Maps" NMR Biomed. 10:165 (1997) [PDF]
Pattern recognition
Haxby, et al., "Distributed and Overlapping Representations of Faces and Objects in Ventral Temporal Cortex" Science 293:2425 (2001). [PDF]
Cox and Savoy. "Functional magnetic resonance imaging (fMRI) "brain reading": detecting and classifying distributed patterns of fMRI activity in human visual cortex", NeuroImage 19(2):261, (2003). [PDF]
Model-free analyses
FMRIB documentation of their Independent Components Analysis tool (MELODIC) [HTML]
Optional readings:
Machine learning
T.M. Mitchell, R. Hutchinson, R.S. Niculescu, X. Wang, M. Just, S. Newman. "Learning to Decode Cognitive States from Brain Images" [PDF]
PCA/ICA
StatSoft's introduction to Principal Components Analysis
The serious GFP (glutton for punishment) will read the original papers: McKeown, et al., "Analysis of fMRI dadta by blind separation into independent spatial components", Hum. Brain Mapp. 6:160 (1998) [PDF]
Bell and Sejnowski, "An information maximisation approach to blind separation and blind deconvolution." Neural computation 7:1004 (1995) [PDF]
Structural equation modeling
StatSoft introduction to Structural Equations
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| 12/7 |
Multimodal Imaging and leftovers
- Multimodal Integration (EEG/MEG, TMS)
- Direct Current Measurement
- Latest Tools in MRI (Parallel imaging, Diffusion Tractography, Arterial Spin Labeling)
- Future Areas of Growth
- Amusing New Literature
Required readings:
Chapter 15 of Huettel, et al.
RI Goldman, JM Stern, J Engel, MS Cohen . "Simultaneous EEG and fMRI of the alpha rhythm." Neuroreport 2002; 13(18):2487-2492. [PDF]
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Critiquing the Literature
(picks and pans)
This will be handled as a set of in class debates. See the assignment list for details.
Illes J. Neuroethics in a new era of neuroimaging. AJNR Am J Neuroradiol. 2003 Oct;24(9):1739-4
Is there a brain region specialized uniquely for the perception of faces?
Gauthier I, Tarr MJ, Anderson AW, Skudlarski P, Gore JC. Activation of the middle fusiform 'face area' increases with expertise in recognizing novel objects. Nat Neurosci. 1999 Jun;2(6):568-73.
Kanwisher, N; McDermott, J; Chun, MM. The fusiform face area: a module in human extrastriate cortex specialized for face perception. Journal of Neuroscience, 1997 Jun 1, 17(11):4302-11.
Does fMRI, particularly the initial dip in fMRI, enable resolution to the level of cortical columns?
Kim DS, Duong TQ, Kim SG. High-resolution mapping of iso-orientation columns by fMRI. Nat Neurosci. 2000 Feb;3(2):164-9.
Lindauer U, Royl G, Leithner C, Kuhl M, Gold L, Gethmann J, Kohl-Bareis M, Villringer A, Dirnagl U. No evidence for early decrease in blood oxygenation in rat whisker cortex in response to functional activation. Neuroimage. 2001 Jun;13(6 Pt 1):988-1001.
What are the ethical limitations and boundaries to the use of fMRI?
Phelps EA, O'Connor KJ, Cunningham WA, Funayama ES, Gatenby JC, Gore JC, Banaji MR. Performance on indirect measures of race evaluation predicts amygdala activation. J Cogn Neurosci. 2000 Sep;12(5):729-38.
McClure SM, Li J, Tomlin D, Cypert KS, Montague LM, Montague PR. Neural correlates of behavioral preference for culturally familiar drinks. Neuron. 2004 Oct 14;44(2):379-87.
Background reading:
In Love?: You just lit up your medial insula
Greene JD, Sommerville RB, Nystrom LE, Darley JM, Cohen JD.
An fMRI investigation of emotional engagement in moral judgment. Science. 2001 Sep 14;293(5537):2105-8. [PDF]
The Mind of a Killer - [movie]
Brain Fingerprinting - Farwell Brain Fingerprinting
Is there a brain region hyperspecialized to the perception of classes of objects?
Haxby JV, Gobbini MI, Furey ML, Ishai A, Schouten JL, Pietrini P. Distributed and overlapping representations of faces and objects in ventral temporal cortex. Science. 2001 Sep 28;293(5539):2425-30.
Chao LL, Haxby JV, Martin A. Attribute-based neural substrates in temporal cortex for perceiving and knowing about objects. Nat Neurosci. 1999 Oct;2(10):913-9.
Finals handed out in class
The Final is Found [HERE]
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| 12/14 |
Finals due in class |
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