Object permanence tests on gibbons (Hylobatidae)
Publication/Journal: Journal of Comparative Psychology
Keywords: gibbons, mental representation, object permanence, piagetian tests
2008
Observations on the Behavior of Gibbons (Hylobates leucogenys, H. gabriellae, and H. lar) in the Presence of Mirrors
Publication/Journal: Journal of Comparative Psychology
Keywords: animal behavior, animal behaviour, gibbons, hidden object task, mirrors, modified mark test, self-recognition
2000