Effects of maternal mobility on the development of rocking and other behaviors in rhesus monkeys: a study with artificial mothers.
Mechanically driven mobile artificial mothers effectively prevented the development of stereotyped body-rocking in rhesus monkeys. Monkeys were maternally separated at birth and assigned to 2 groups. Both groups were placed with surrogates, identical in construction except that for 1 group the surrogate was in motion 50% of the time from 0500 hours to 2400 hours each day, and for the other group the surrogate was stationary. All but 1 of the 10 monkeys raised with stationary artificial mothers developed rocking as an habitual pattern whereas none of the 9 monekys raised with mobile mothers did so. The data also suggest that emotional responsiveness was reduced in monkeys raised with mobile mothers, compared to monkeys raised with stationary devices.
D000367:Age Factors; D000818:Animals; D000831:Animals, Newborn; D001519:Behavior; D001522:Behavior, Animal; D001835:Body Weight; D005260:Female; D000882:Haplorhini; D006801:Humans; D008253:Macaca mulatta; D008297:Male; D008425:Maternal Behavior; D009043:Motor Activity; D009068:Movement; D009769:Object Attachment; D012919:Social Behavior; D013239:Stereotyped Behavior; D014828:Vocalization, Animal