. Author manuscript; available in PMC: 2015 May 1.

Published in final edited form as: Anim Cogn. 2013 Oct 15;17(3):619–631. doi: 10.1007/s10071-013-0693-0

Table 1.

Stimulus settings used in each phase of training

	Luminosity trials				Radius trials
	Lum. min	Lum. max	Rad. min.	Rad. max	Lum. min	Lum. max	Rad. min.	Rad. max
Training Phase 1	–	–	–	–	0	0	5	70
Training Phase 2	0	220	36	36	–	–	–	–
Training Phase 3	0	220	36	36	0	0	5	70
Experimental Phase 1 (biased)	0	220	27	57	50	170	5	70
Experimental Phase 2 (unbiased)	0	220	5	70	0	220	5	70