Table 1.

Predictability (Pearson correlation) of kernel magnitudes, from one day to the next, measured under four different permutations for aligning the two days. The four permutations correspond to four rows of a Latin square, one of which matched individuals across days, another which matched physical cage locations across days and two null permutations having no meaningful interpretation.

data permutation	self–other (n = 12)	self–self (n = 4)
individual	0.82***	0.48
location	−0.09	0.37
null 1	−0.41	0.60
null 2	0.11	0.29

***p < 0.001.