7/2/2004 SSCC/NIMH 38
Sample FMRI data: Eccentricity Mapping
¥Scan Parameters:
HEPI: NIH-EPI, TR=2sec, 17 Coronal Slices, 134 samples, 3.75 x 3.75 x 4 mm
HAnat: SPGR, 0.94 x 0.94 x 1.1, 120 axial slices
¥Stimulus Timing:
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¥
¥
¥
¥Activation delay estimated with 3ddelay
¥Demo:
HRotate color map in AFNI and watch changes in SUMA
ånote how colors progress along the calcarine sulcus
åtry the dance on inflated and spherical surfaces
0
10
30
ON
OFF
 s.
60
Eccentricity
0
10 s.