Table 2.

Responses to virtual acoustic space stimuli

	A1	pAES	aAES
Total number of neurons tested with VASS	133	115	140
Space-responsive neurons	94 of 133 (71%)	87 of 115 (76%)	96 of 140 (69%)
Space-selective neurons, spike count only	38	36	34
Space-selective neurons, both spike count and first spike latency	27	33	18
Space-selective neurons, first spike latency only	3	2	5
Overall space selectivity	68 of 94 (72%)	71 of 87 (82%)	57 of 96 (60%)

Space-responsive neurons had significantly larger spike counts after VASS onset compared with spike counts for the same time interval preceding VASS onset (p < 0.05, paired t test). Space-selective neurons had significant effect of virtual location on spike counts (one-way ANOVA, p < 0.05) or on first spike latency (mutual information between the first spike latency and virtual location). For additional details, see Materials and Methods.