Table 1.

Number of neurons responding

	Neuronal response
Number of responses per cell	Precue activity	Cue-related response	Go/prebar-release activity	Reward-related response	Number of cells	Total number of cells
1	○				20
		○			26
			○		4
				○	9	59 (31%)
2	○	○			47
	○		○		2
	○			○	5
		○	○		18
		○		○	4
			○	○	5	81 (43%)
3	○	○	○		32
	○	○		○	6
	○		○	○	3
		○	○	○	3	44 (24%)
4	○	○	○	○	4	4 (2%)
Total number of cells	119	140	71	39		188 (100%)

Circles indicate significant response (p < 0.01).