Table 2.

Comparison of IPS area coordinates from Swisher et al., 2007 (top row) with our activations (bottom four rows). The Swisher activations are given as mean positions followed by standard deviations in brackets. A ‘Yes’ indicates that there was activity in our study at the locations given in the top row. Bracketed figures in the bottom four rows indicate the distance from the mean location of the activations in the top row to the nearest suprathreshold voxel in our data. (threshold at p = 0.001 uncorrected).

	IPS1	IPS2	IPS3	IPS4
Swisher	± 23 (6), − 73 (7), 40 (7)	± 21 (5), − 68 (7), 52 (8)	± 25 (7), − 61 (7), 55 (6)	± 26 (6), − 57 (9), 54 (7)
Motion grouping > no grouping	Yes (5 mm)	Yes (5 mm)	Yes (5 mm)	Yes (4 mm)
Colour grouping > no grouping	Yes (0 mm)	Yes (0 mm)	Yes (0 mm)	Yes
Motion groups parametric	Yes (0 mm)	Yes (7 mm)	Yes (4 mm)	Yes (0 mm)
Colour groups parametric	No (7 mm)	Yes (0 mm)	Yes (0 mm)	Yes (0 mm)