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Coordinate-independent mapping of structural and functional data by objective relational transformation (ORT)

K. E. Stephan, K. Zilles, R. Kotter
2000 Philosophical Transactions of the Royal Society of London. Biological Sciences  
We here present a coordinate-independent mathematical method to overcome this problem: objective relational transformation (ORT).  ...  Based on new classi¢cations for brain data and on methods from theoretical computer science, ORT represents a formally de¢ned, transparent transformation method for reproducible, coordinate-independent  ...  This observer-independency of the transformation on the basis of a given set of relations is what we denote by the term`objective' in the acronym ORT.  ... 
doi:10.1098/rstb.2000.0548 pmid:10703043 pmcid:PMC1692724 fatcat:m2k23skmkbbkdixuxwdlmjursu

Mapping brains without coordinates

R. Kotter, E. Wanke
2005 Philosophical Transactions of the Royal Society of London. Biological Sciences  
Here, we provide an introduction to motivations, concepts, techniques and implications of coordinate-independent mapping of microstructurally or functionally defined brain structures.  ...  Examples from the CoCoMac database of primate brain connectivity demonstrate how these concepts enhance coordinate-independent mapping based on published relational statements.  ...  This work was supported by the DFG Graduate School 320. We thank the students of the Computational j Systems j Neuroscience group for their contributions to the approaches presented here.  ... 
doi:10.1098/rstb.2005.1625 pmid:15971361 pmcid:PMC1569487 fatcat:fh7ufk3zdvchhi7td2quyvejq4

Robust Mapping of Process Networks to Many-Core Systems using Bio-Inspired Design Centering

Gerald Hempel, Andrés Goens, Jeronimo Castrillon, Josefine Asmus, Ivo F. Sbalzarini
2017 Proceedings of the 20th International Workshop on Software and Compilers for Embedded Systems - SCOPES '17  
However, when mapping several independent programs to the same platform, resource con icts can arise. is can be circumvented by remapping some of the tasks of an application, which in turn a ect its timing  ...  With these types of models, the mapping of the abstract application model to the existing hardware architecture plays a decisive role and is usually optimized to achieve an ideal resource footprint or  ...  lter le, splits both channels and performs an inverse Fast Fourier Transform (FFT) on each. en, the sink channel lters each channel in the frequency domain and applies an FFT to convert back to the time  ... 
doi:10.1145/3078659.3078667 dblp:conf/scopes/HempelGCAS17 fatcat:7kynj2xamfhkvnumkc36xhf57m

Hundreds of brain maps in one atlas: Registering coordinate-independent primate neuro-anatomical data to a standard brain

Gleb Bezgin, Vasily A. Vakorin, A. John van Opstal, Anthony R. McIntosh, Rembrandt Bakker
2012 NeuroImage  
These methods typically register their data in Euclidean space, so that one can refer to a particular activity pattern by specifying its spatial coordinates.  ...  Brain regions from 9 different brain maps were directly mapped to a standard macaque cortex using the tool A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT 2 Caret (Van Essen and Dierker, 2007)  ...  CoCoMac deals with these duplicate brain regions using a (re)mapping technique called ORT (Objective Relational Transformation; Stephan et al., 2000) , which uses chains of relational mapping statements  ... 
doi:10.1016/j.neuroimage.2012.04.013 pmid:22521477 fatcat:f2mueabtsnfdpetym3dbtsjqei

Reciprocal Benefits of Mass-Univariate and Multivariate Modeling in Brain Mapping: Applications to Event-Related Functional MRI, H215O-, and FDG-PET

James R. Moeller, Christian G. Habeck
2006 International Journal of Biomedical Imaging  
In brain mapping studies of sensory, cognitive, and motor operations, specific waveforms of dynamic neural activity are predicted based on theoretical models of human information processing.  ...  By comparison multivariate analyses based on PCA or ICA provide greater flexibility in detecting spatiotemporal properties of experimental data that may strongly support alternative neuroscientific explanations  ...  This work was supported by federal Grants NINDS RO1 NS35069, NIA RO1 AG16714, and NINDS RO1 NS02138  ... 
doi:10.1155/ijbi/2006/79862 pmid:23165047 pmcid:PMC2324050 fatcat:awctadvnubhjbkutdr3xiwmlre

NeuroQuery, comprehensive meta-analysis of human brain mapping

Jérôme Dockès, Russell A Poldrack, Romain Primet, Hande Gözükan, Tal Yarkoni, Fabian Suchanek, Bertrand Thirion, Gael Varoquaux
2020 eLife  
The variety of human neuroscience concepts and terminology poses a fundamental challenge to relating brain imaging results across the scientific literature.  ...  Our multivariate model predicts the spatial distribution of neurological observations, given text describing an experiment, cognitive process, or disease.  ...  The precision of extracted coordinates could be improved by detecting which reference is used and transforming Talairach coordinates to MNI coordinates.  ... 
doi:10.7554/elife.53385 pmid:32129761 pmcid:PMC7164961 fatcat:hvjkw5qurbgnneqwgl5ew4pafq

A probabilistic atlas and reference system for the human brain: International Consortium for Brain Mapping (ICBM)

J. Mazziotta, A. Toga, A. Evans, P. Fox, J. Lancaster, K. Zilles, R. Woods, T. Paus, G. Simpson, B. Pike, C. Holmes, L. Collins (+15 others)
2001 Philosophical Transactions of the Royal Society of London. Biological Sciences  
Through an International Consortium for Brain Mapping (ICBM) a dataset is being collected that includes 7000 subjects between the ages of eighteen and ninety years and including 342 mono-and dizygotic  ...  Motivated by the vast amount of information that is rapidly accumulating about the human brain in digital form, we embarked upon a program in 1992 to develop a four-dimensional probabilistic atlas and  ...  For generous support, the authors also wish to thank the Brain Mapping Medical Research Organization, the Pierson^Lovelace Foundation, The Ahmanson Foundation, the Tampkin Foundation, the Jennifer Jones  ... 
doi:10.1098/rstb.2001.0915 pmid:11545704 pmcid:PMC1088516 fatcat:xwrniyeggnfkxgfucgbumn4jvy

Beta and theta oscillations differentially support free versus forced control over multiple-target search

Joram van Driel, Eduard Ort, Johannes J. Fahrenfort, Christian N. L. Olivers
2019 Journal of Neuroscience  
Many important situations require human observers to simultaneously search for more than one object.  ...  display and observers were free to prioritize either one of them, thus enabling proactive control over selection; or only one of the two targets would be present in each search display, which requires  ...  These maps were further spatially normalized by subtracting the average of the electrodes in the map, and dividing by the SD across electrodes in the map.  ... 
doi:10.1523/jneurosci.2547-18.2018 pmid:30617208 pmcid:PMC6391569 fatcat:onomrchbqfdrfe4yaldyfefay4

A Distributed Cognitive Map for Spatial Navigation Based on Graphically Organized Place Agents

Douglas Rodney
2008 Frontiers in Neuroinformatics  
Each such a place is represented by an independent "place agent" (PA) that actively maintains the spatial and behavioral knowledge relevant for navigation in that place.  ...  consistent spatial map (Thrun 2002).  ...  (Downs and Stea 1973) refers to cognitive mapping as "a process composed of a series of psychological transformations by which an individual acquires, stores, recalls, and decodes information about the  ... 
doi:10.3389/conf.neuro.11.2008.01.092 fatcat:uj53vbxpsjenrfhw7lbmvitfdu

Modeling & Analysis

2003 NeuroImage  
Usually, these maps rely on a 3D coordinate system related to the Talairach atlas.  ...  It relies on a one-to-one mapping between individual cortical surfaces and a spherical coordinate system [3,4]. Various mapping strategies can be devised.  ...  We feel that surface-based techniques are more appropriate, since the surface of an object actually defines its shape.  ... 
doi:10.1016/s1053-8119(05)70006-9 fatcat:zff2suxcofbxvetfrwfwcxi3zm


K. Terauchi, L. Ort, A. Grossman, Kehoe
2000 Journal of Phycology  
An intermediate in n-3 LC-PUFA synthesis, 20:4n-3, accumulated in mixotrophs [0.6 ( ϩ / Ϫ 0.27) pg cell Ϫ 1 ] relative to phototrophs (not detected) and prey [0.03 ( ϩ / Ϫ 0.002) pg cell Ϫ 1 ].  ...  Accumulation of 20:4n-3 suggests incomplete conversion of linolenic acid to DHA, possibly due to conditions in batch culture.  ...  Many filamentous species translocate in a highly coordinated manner. Translational movements are usually accompanied by revolutions around the long axis of the filament.  ... 
doi:10.1046/j.1529-8817.1999.00001-195.x fatcat:g46c5su36ndqdmlwtvb7ghjyuu

The Brain Atlas Concordance Problem: Quantitative Comparison of Anatomical Parcellations

Jason W. Bohland, Hemant Bokil, Cara B. Allen, Partha P. Mitra, Olaf Sporns
2009 PLoS ONE  
Currently, however, no widely accepted standards exist for partitioning the cortex and subcortical structures, or for assigning labels to the resulting regions, and many procedures are being actively used  ...  of comparing results that were based on these different anatomical models, particularly when coordinate-based data are not available.  ...  JWB thanks Leo Grady for helping to develop ideas about the application of graph partitioning to the current problem. Author Contributions Conceived and designed the experiments: JWB CBA PPM.  ... 
doi:10.1371/journal.pone.0007200 pmid:19787067 pmcid:PMC2748707 fatcat:yp35ev7jnjd7tcqpm2pwwugrwa

Brain network analysis

Xiangnan Kong, Philip S. Yu
2014 SIGKDD Explorations  
Many research e↵orts have been devoted to this area. They have achieved great success in various applications, such as brain network extraction, graph mining , neuroimaging data analysis.  ...  Following the recent advances in neuroimaging technology, the research on brain network analysis becomes an emerging area in data mining community.  ...  Many research e↵orts are devoted to mining important brain regions [22; 14] and connection estimation [37; 19; 20] .  ... 
doi:10.1145/2641190.2641196 fatcat:l7gnbu3zufbvjmw67ptxycyoyu

Modeling Resting-State Brain Functional Integration

Xi-Nian Zuo
2010 Nature Precedings  
The generation of rs-fcMRI map by using seed-based correlation is coming to be more consistency among many research groups.  ...  Finally, these ICs were transformed into Z-score maps. The Z-score of a given voxel in an IC reflects the contribution to the voxel's time series from the TC associated with the IC (see Figure ? ?  ...  Subjects were instructed to look at a crosshair, remain still, and to not fall asleep.  ... 
doi:10.1038/npre.2010.4380.1 fatcat:fuptk3khkjfv3bezdvhsk3d4di

Computational analysis of functional connectivity between areas of primate cerebral cortex

K. E. Stephan, C.-C. Hilgetag, G. A. P. C. Burns, M. A. O'Neill, M. P. Young, R. Kotter
2000 Philosophical Transactions of the Royal Society of London. Biological Sciences  
We therefore built up a relational database by systematically collating published data on the spread of activity after strychnine-induced disinhibition in the macaque cerebral cortex in vivo.  ...  After mapping these data to two di¡erent parcellation schemes, we used three independent methods of analysis which demonstrate that the cortical network of functional interactions is not homogeneous, but  ...  This work was made possible by a Wellcome Trust Collaboration Grant to M.P.Y. and R.K.  ... 
doi:10.1098/rstb.2000.0552 pmid:10703047 pmcid:PMC1692715 fatcat:el6vgdt7j5chnallyuxjqamqiq
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