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(a).
(b).
(c).
Fig. 2.
V2 surface area correlates with V3 surface area (c), but V1 and V2 (a), V1 and V3 (b)
surface area is no significant correlation. Note that these are measurements of quarter-field
cortical representations. Triangles are ventral regions and squares are dorsal regions data.
(r = 0.761, p< 0.001, df = 32), but between V1 and V2 (r = 0.072, p=0.696, df = 32),
V1 and V3 (r = 0.231, p=0.204, df = 32) were not.
The V2 surface area in the wide-filed 60 deg representation is roughly 82% that of
V1, and this size difference is statistically significant (pairwise t = 3.249, p < 0.01, df
= 31). The surface area of V3 is averaged 1556mm^2. V3 is on average 71% the size
of V1, and this size difference is statistically significant (pairwise t = 7.790, p <
0.001, df = 31).
We measured the average areas of V1/V2/V3 in different degree as a function of
eccentricity, as shown figure 2. There was a significant decrease of the response area
in V1(y = -123.98Ln(x) + 553.99, R1=0.9822), V2(y = -82.69Ln(x) + 372.58,
R2=0.9898) and V3(y = -75.329Ln(x) + 313.91, R3=0.9876). The tread of decreasing
of V2/V3 is slower than that of V1 and the areas of V1/V2/V3 in 50deg. The trend of
decreasing slowed down in 40~50deg of V2/V3, which is different with V1.
