Table 3.

Mean numbers of ventral neurons (VNe) of the AMe backfilled from the contralateral optic lobe in the two different colocalization experiments. Values are arithmetical means ± standard deviation; the numbers after the first semicolon is the highest count in the respective group, and the number after the second semicolon is the number of animals contributing to the mean value. For calculations of the means, only those experiments were considered in which at least one neuron was found in the respective group

Experimental setup	Contralateral VNe with PDF immunoreactivity, without second immunoreactivity	Contralateral VNe with PDF and second immunoreactivity	Contralateral VNe without PDF, FMRFamide, or orcokinin immunoreactivity
PDF + FMRFamide (n = 11)	1.0 ± 0.0; 1; 9	1.9 ± 0.6; 3; 10	1.8 ± 1.3; 4; 5 a
PDF + orcokinin (n = 14)	1.0 ± 0.0; 1; 7 b	2.1 ± 0.9; 3; 10 b	1.0 ± 0.0; 1; 1

^aThe high mean number is the result from one preparation with four labeled neurons; the value would be 1.2±0.4; 2; 5 without this specimen

^bPreparations with low orcokinin-ir labeling intensity were not counted