Table 4.

Summary of horizontal connectivity

	V1	V2	V5
Most distant terminal cluster	2.7 (2.1–2.9)	4.1 (4.0–4.2)	8.9
Anisotropy ratio	1.7 (1.6–1.8)	1.6	1.2
Cluster size	0.21 (0.18–0.23)	0.25 (0.25–0.25)	0.52
Intercluster separation	0.61	0.88 (0.60–1.15)	2.3
References	1–2, 4–5	1, 3	6

Mean (range) across studies. Distances are in mm. Data from: 1, Amir et al. (1993); 2, Malach et al. (1993); 3, Levitt et al. (1994b); 4, Yoshioka et al. (1996); 5, Angelucci et al. (2002b); and 6, Ahmed et al. (2012).