NA-MIC Internal Collaborations:fMRIAnalysis - Revision history

Melonakos: /* Fieldmap-Free EPI Distortion Correction */

2009-11-04T18:11:54Z

Fieldmap-Free EPI Distortion Correction

Melonakos: /* fMRI clustering */

2009-11-04T18:11:26Z

fMRI clustering

Melonakos at 20:10, 27 August 2009

2009-08-27T20:10:38Z

Melonakos at 20:09, 27 August 2009

2009-08-27T20:09:22Z

Melonakos at 20:08, 27 August 2009

2009-08-27T20:08:19Z

Melonakos at 19:45, 11 July 2009

2009-07-11T19:45:47Z

Polina at 22:40, 14 May 2009

2009-05-14T22:40:14Z

Polina: /* fMRI clustering */

2009-05-14T01:02:23Z

fMRI clustering

Polina: /* fMRI clustering */

2009-05-14T01:02:04Z

fMRI clustering

Polina: /* fMRI clustering */

2009-05-14T01:01:53Z

fMRI clustering

← Older revision		Revision as of 18:11, 4 November 2009
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	In this project we aim to improve the EPI distortion correction algorithms [[Projects:FieldmapFreeDistortionCorrection\|More...]]		In this project we aim to improve the EPI distortion correction algorithms [[Projects:FieldmapFreeDistortionCorrection\|More...]]

−	<font color="red">'''New: '''</font> Poynton C., Jenkinson M~~., Whalen S., Golby A.J~~., Wells III W. ~~Fieldmap~~-~~Free Retrospective Registration and~~ Distortion Correction ~~for~~ EPI~~-Based Functiona Imaging~~. MICCAI ~~2008~~.	+	<font color="red">'''New: '''</font> Poynton C., Jenkinson M., Wells III W. Atlas-Based Improved Prediction of Magnetic Field Inhomogeneity for Distortion Correction of EPI Data. MICCAI 2009.

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 In this project we study the application of model-based clustering algorithms in identification of functional connectivity in the brain. [[Projects:fMRIClustering|More...]]
-<font color="red">'''New: '''</font>
+<font color="red">'''New: '''</font> AA. Venkataraman, K.R.A Van Dijk, R.L. Buckner, and P. Golland. Exploring functional connectivity in fMRI via clustering. In Proc. ICASSP: IEEE International Conference on Acoustics, Speech and Signal Processing, 441-444, 2009.
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← Older revision		Revision as of 20:10, 27 August 2009
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−	~~\| \| [[Image:FMRIEvaluationchart.jpg\|200px]]~~
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−	~~== [[Projects:fMRIDetection\|fMRI Detection and Analysis]] ==~~
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−	~~We are exploring algorithms for improved fMRI detection and interpretation by incorporting spatial priors and anatomical information to guide the detection. [[Projects:fMRIDetection\|More...]]~~
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−	~~\| \| [[Image:NAMIC AVrecog prelim results.jpg\|200px]]~~
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−	~~== [[Projects:BrainActivationDuringContinuousVerbalEncodingAndRecognitionTaskInSchizophrenia\|Brain Activation during Continuous Verbal Encoding and Recognition Task in Schizophrenia]] ==~~
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−	This project employs an event-related auditory verbal episodic memory probe targeting medial temporal and DLPFC circuitry. The task uses a continuous performance format where concrete nouns are presented initially as new items. Words are then repeated after short or long intervals and the participant is required to make a new/old distinction. This design permits analysis of both encoding and recognition processes. [[Projects:BrainActivationDuringContinuousVerbalEncodingAndRecognitionTaskInSchizophrenia\|More...]]
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−	~~\| \| [[Image:Brain-flat.PNG\|200px]]~~
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−	~~== [[Projects:ConformalFlatteningRegistration\|Conformal Flattening]] ==~~
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−	The goal of this project is for better visualizing and computation of neural activity from fMRI brain imagery. Also, with this technique, shapes can be mapped to shperes for shape analysis, registration or other purposes. Our technique is based on conformal mappings which map genus-zero surface: in fmri case cortical or other surfaces, onto a sphere in an angle preserving manner. [[Projects:ConformalFlatteningRegistration\|More...]]
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 <font color="red">'''New: '''</font>  Poynton C., Jenkinson M., Whalen S., Golby A.J., Wells III W. Fieldmap-Free Retrospective Registration and Distortion Correction for EPI-Based Functiona Imaging. MICCAI 2008.
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 We are exploring algorithms for improved fMRI detection and interpretation by incorporting spatial priors and anatomical information to guide the detection. [[Projects:fMRIDetection|More...]]
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← Older revision		Revision as of 20:08, 27 August 2009
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	<font color="red">'''New: '''</font> Poynton C., Jenkinson M., Whalen S., Golby A.J., Wells III W. Fieldmap-Free Retrospective Registration and Distortion Correction for EPI-Based Functiona Imaging. MICCAI 2008.		<font color="red">'''New: '''</font> Poynton C., Jenkinson M., Whalen S., Golby A.J., Wells III W. Fieldmap-Free Retrospective Registration and Distortion Correction for EPI-Based Functiona Imaging. MICCAI 2008.
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−	~~\| \| [[Image:Apathy.png\|200px]]~~
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−	~~== [[Projects:NeuralSubstratesOfApathy\|Neural Substrates of Apathy]] ==~~
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−	We recently observed reduced volume of the frontal lobe in patients with schizophrenia having high levels of apathy (link to journal below). In the present investigation we are extending our study of the structural correlates of apathy in schizophrenia using the NAMIC toolkit with an emphasis on basal ganglia. [[Projects:NeuralSubstratesOfApathy\|More...]]
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 === Functional Activation Analysis ===
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 | style="width:15%" | [[Image:mit_fmri_clustering_parcellation2_xsub.png|200px]]
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 ) D. Lashkari and P. Golland, Exploratory fMRI Analysis without Spatial Normalization. Accepted to IPMI: International Conference on Information Processing and Medical Imaging, 2009.
 ) A. Venkataraman, K.R.A. Van Dijk, R.L. Buckner, P. Golland. Exploring Functional Connectivity in fMRI via Clustering. Accepted to ICASSP: IEEE International Conference on Acoustics, Speech and Signal Processing,2009.
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