. 1998 Mar 15;18(6):2254–2267. doi: 10.1523/JNEUROSCI.18-06-02254.1998

Table 1.

Response likelihood for stimuli 69–78

Mutant class	Response Likelihood
Mutant class	mean	SEM	n
Control	0.56	0.073	41
Hk	0.98**	0.018	11
slo	0.84*	0.067	19
Sh¹³³	0.65	0.122	15
Sh¹²⁰ +Sh⁵	0.25*	0.101	17
eag	0.15**	0.082	16
Hk Sh	0.89*	0.099	10
Hk eag Sh	0.80	0.200	5
eag¹Sh¹³³	0.75	0.127	10
eag¹Sh¹²⁰	0.36	0.163	9
rut	0.76	0.066	36
dnc	0.26***	0.076	32
dnc rut	0.17***	0.080	21

In controls, response likelihood crossed 0.5 at stimulus 74 (compare Fig. 2). Response likelihood over the 10 stimuli was calculated for each fly, then averaged for each mutant class, and compared with controls (two-tailed t test; *p < 0.05; **p < 0.01; ***p < 0.001). Except for Sh and eag Sh, different alleles (listed in Materials and Methods) gave similar results and are combined (same trials shown in Fig. 3). Results for learning mutants rut and dnc were calculated from previous trials (Engel and Wu, 1996).