November 3, 2006
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DATA SETS USED IN Eguiluz et al, Physical Rev. Letters, 2005
///// IRB, legal and confidencialy issues \\\\\\
It is against the law to duplicate or diseminate in any way
the data and/or information contained in these files without
written permission from the Study Principal Investigators
(IRB protocols 0794-009) of Northwestern University
Dante Chialvo and Vania Apkarian
d-chialvo@northwestern.edu a-apkarian@northwestern.edu
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Subject code# CodeName Age/Gender DataSet code#
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1 Si2 37/F 11 12 13 14
2 Ch 24/F 21 22 23
3 Ja 30/M 31 32 33
4 Mi 30/M 41 42 43
5 Na 28/F 51 52 53
6 Va 50/M 61 62 63
7 Si1 37/F 71 72 73
8 Se 28/M 81 82 83
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- Each subject have one high resolution t1
image and several functional tasks
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-All anatomical scans are 160-volumes long
Filename convention:
subject#ana.img = original anatomical scan
subject#anabrain = deskulled anatomical scan
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Results in Figures 2 trough 3 are obtained from datasets
from Subjects 1 trough 7
Results in Figure 4 are from the analysis of dataset of
Subject 8
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Functional tasks
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-all functional scans are 400-volumes long
TR=2.5 seconds
TE=30 msec
Flip Angle =90
Filed of view = 256
Image dim= 36 x 36 x 64 (x,y,z)
Voxel dim= 3.475 x 3.475 x 3 mm (x,y,z)
-functional task for subjects 1,2,3,4,5,6 and 7
contains 20 cycles where one cycle = 10 volume off/10 volume
on finger tapping
#1: motor finger tapping qued by a small visual stimulus
#2: motor finger tapping qued by an auditory stimulus
#3: motor finger tapping qued large visual stimulus
Exception:subject 1 have additional session: dataset 14 is a
baseline recording while subject is quiet with closed eyes.
-functional task for subject 8:
Dataset 81: music listening, 20 cycles where once cycle= 20 volume
off/20 volume on
Dataser 82: word recalling, 40 cycles where once cycle= 10 volume
off/10 volume on
Dataset 83: word generation, 40 cycles where once cycle= 10 volume
off/10 volume on
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Preprocessiong and FSL analysis:
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-the output of FSL (feat) analysis is in each
set#.feat folder
Preprocessed (by FEAT, motion corrected, filtered, spatial smoothing)
images file are under the name of
set#filtered_func_data.img
report.html contains the output of FSL and report.log
in each folder have the specific parameters used.
high pass filter = 50 seconds.
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reader.f is a sample fortran code to read Preprocessed or Raw images
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