Table 2 Frequency distribution of the sulcal pattern of the IPS, OTS and ACC in the current study and in previous studies.
From: Investigating the association between variability in sulcal pattern and academic achievement
| Â | Â | Â | Current study | Previous study | Current vs. Previous study |
|---|---|---|---|---|---|
IPS (Grade 2–4; Roell et al.11) | Left | Sectioned | 32 (36%) | 26 (34%) | χ = 2.45; p = .11 |
Not sectioned | 58 (64%) | 51 (66%) | |||
Right | Sectioned | 40 (44%) | 32 (63%) | χ = 4.36; p = .04 | |
Not sectioned | 50 (56%) | 19 (37%) | |||
OTS (Cachia et al.10) | Left Posterior | Interrupted | 21 (32%) | 20 (39%) | χ = 0.56; p = .48 |
Continuous | 45 (68%) | 32 (62%) | |||
Left Anterior | Interrupted | 10 (15%) | 31 (60%) | χ = 25.36; p < .0001 | |
Continuous | 56 (85%) | 21 (40%) | |||
Right Posterior | Interrupted | 21 (32%) | 18 (35%) | χ = 0.16; p = .75 | |
Continuous | 45 (68%) | 34 (65%) | |||
Right Anterior | Interrupted | 22 (33%) | 24 (46%) | χ = 2.01; p = .16 | |
Continuous | 44 (67%) | 28 (54%) | |||
ACC (Tissier et al.50) | Left | Single | 32 (36%) | 7 (18%) | χ = 3.70; p = .06 |
Double | 58 (64%) | 31 (82%) | |||
Right | Single | 54 (60%) | 22 (58%) | χ = 0.05 ; p = .83 | |
Double | 36 (40%) | 16 (42%) |
