Correction to: Scientific Reports https://doi.org/10.1038/s41598-019-40616-4, published online 04 April 2019

This Article contains typographical errors in the Methods section, under the subheading ‘Subjects’,

“Their ages ranged from 1 to 11 years (mean age: 6.48 years, SD = 3.29).”

should read:

“Their ages ranged from 1 to 12 years (mean age: 6.48 years, SD = 3.29).”

In addition,

“Of them, 30 cats were kept in 21 families (2 male and 19 female owners) and 3 cats were kept in university laboratories.”

should read:

“Of them, 30 cats were kept in 19 families (1 male and 18 female owners) and 3 cats were kept in university laboratories (1 male and 1 female owners).”

Furthermore,

“Of these 33 cats, 3 had participated in Experiment 1 and 5 had participated in Experiments 2 and 3.”

should read:

“Of these 33 cats, 4 had participated in Experiment 1 and 5 had participated in Experiments 2 and 3.”

Finally, in the Supplementary Tables and Figure file, in Table S5 the ages of subjects Ngboi and Nnn were reversed and should read ‘2’ and ‘7’ respectively.