Table 2. Trial counts for included sessions.

The values reported are calculated for individual recording sessions for which at least one triplet was included for the analysis; the numbers of trials are the same for all simultaneously recorded units within a session. The values for ‘A’ and ‘B’ trials indicate the values for either A or B; that is, there were on average 21 ‘A’ trials and 21 ‘B’ trials for each triplet in the adjacent V1 dataset.

Stimuli	Brain area	Number of ‘A’ and ‘B’ trials				Number of ‘AB’ trials
		Mean	SD	Min	Max	Mean	SD	Min	Max
Adjacent	V1	21.0	12.3	6	56	17.8	12.8	6	59
	V4	72.8	30.3	5	136	72.2	30.7	6	132
Superimposed	V1	25.4	15.4	7	74	23.3	12.1	7	64
	V4	131.3	42.0	20	196	184.5	64.6	20	270