Table 2 Brain regions showing activation differences between groups in each condition.

Contrast/region	MNI coordinates			z-value	Cluster size
Contrast/region	x	y	z	z-value	Cluster size
Condition effects
R. Lingual gyrus	16	−78	−8	>8	585
L. Calcarine cortex	−8	−88	−2	>8	542
R. Calcarine cortex	8	−88	0	>8	322
L. Precuneus	−18	−66	46	6.13	281
Group effects
None
PSU < CON
L. Middle occipital lobe	−18	−94	14	>8	187
PSU > CON
R. Angular gyrus/inferior parietal lobule	38	−60	50	>8	341
R. Fusiform gyrus	30	−80	−10	7.51	139
L. Supplementary motor area	−2	6	60	7.49	240
R. Supramarginal gyrus	56	−26	44	6.98	276
R. Middle frontal gyrus	46	12	48	6.74	317
B. Paracentral gyrus	0	−34	56	6.58	332
L. Inferior parietal lobule	−28	−48	46	6.55	668
L. Superior parietal lobule	−24	−72	52	6.26	177
L. Precentral gyrus	−18	−16	72	6.20	474
L. Precentral gyrus	−38	−8	44	5.74	147
L. Inferior frontal gyrus	−40	12	26	5.67	198
L. Middle cingulate gyrus	−10	−26	44	5.62	127
L. Precuneus	−2	−54	42	5.1	163
1D
PSU < CON
L. Middle occipital lobe	−18	−94	16	>8	682
PSU > CON
R. Angular gyrus/inferior parietal lobule	38	−60	50	>8	527
R. Middle frontal gyrus	50	22	36	6.08	210
R. Supramarginal gyrus	54	−28	42	5.44	103
2D
PSU < CON
L. Middle occipital lobe	−18	−94	14	>8	406
PSU > CON
R. Angular gyrus/inferior parietal lobule	38	−60	50	7.11	158
BD
PSU < CON
L. Middle occipital lobe	−18	−94	14	>8	863
PSU > CON
R. Angular gyrus/inferior parietal lobule	38	−60	50	5.90	155^†

Abbreviations: B bilateral, CON control, L left, PSU problematic smartphone user, R right.
^*Significant at FWE-corrected p < 0.05, k > 100.
^†Significant at FWE-corrected p < 0.05, k > 100 after small volume correction.

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