TABLE 1.

Contingency tables and probabilities for the data within the rectangular MI windows for the two directions in Fig. 1

	Error180°	Error0°	Total
A. Frequency contingency table
CS0	64	41	105
CS1	0	22	22
Total	64	63	127
B. Probability of error direction given CS, p(Error direction|CS)
CS0	64/105	41/105	1
CS1	0/22	22/22	1

MI, mutual information; CS, complex spike. In Table 1A, rows show the number of trials with (CS₁) and without (CS₀) CSs for each direction. Table 1B shows the probabilities of the two error directions given the occurrence of a CS, p(Error direction|CS).