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. Author manuscript; available in PMC: 2013 Mar 1.
Published in final edited form as: Gastroenterology. 2011 Nov 19;142(3):463–472.e3. doi: 10.1053/j.gastro.2011.11.022

Table 3.

Brain regions (ROIs) where the BOLD response was (a) greater in all IBS patients (n=33) than in healthy controls (n=18) (b) in hypersensitive IBS patients (n=15) than in normosensitive IBS patients (n=18)

(a) IBS > controls
ROI cluster
size
peak
p(FWE)
X-
coord
Y-
coord
Z-
coord
45 mmHg distension
VLPFC L 21 0.05 −40 16 −18
15 mmHg distension
insula mid L 59 0.04 −40 −8 −8
Expectation of 45 mmHg
distension
insula anterior ventral R 10 0.04 32 22 −14
insula mid R 45 0.03 40 −6 −12
hippocampus R 25 0.03 26 −38 0
Expectation of 15 mmHg
distension
No significant findings
(b) Hypersensitive > normosensitive
ROI cluster
size
peak
p(FWE)
X-
coord
Y-
coord
Z-
coord
45 mmHg distension
insula posterior L 69 0.02 −34 −26 6
DLPFC R 345 0.04 22 48 8
aMCC R 68 0.04 8 40 16
pACC L 210 0.04 −10 50 16
pACC R 309 0.01 18 50 12
15 mmHg distension
No significant findings
Expectation of 45 mmHg
distension
insula posterior R 71 0.01 36 −14 20
thalamus R 119 0.05 14 −26 6
Expectation of 15 mmHg
distension
insula anterior ventral R 29 <0.01 46 18 −6