Table 3. Modulation onset of activity of DN cells for the two animals: Earliest onset of individual DN cells.

Monkey	Cell group	Mean	SD	n	Range
M	DNC all	−93.1	29.4	65	−150 to −10
	DNC inc	−95.9	26.6	51	−150 to −30
	DNC dec	−82.9	37.3	14	−130 to −10
S	DNC all	−92.1	38.2	19	−150 to −10
	DNC inc	−85.0	37.6	16	−150 to −10
	DNC dec	−130	—	3	−130

The same conventions as in Table 1. DNC all: all DN cells. DNC inc: DN cells showing increased activity as the earliest modulation regardless of movement direction. DNC dec: DN cells showing decreased activity as the earliest modulation. There was significant difference between DNC inc and DNC dec in monkey S (p<0.002, Mann-Whitney U-test), but not in monkey M (p<0.27, Mann-Whitney U-test).