Piagetian object-permanence in Cebus capucinus, Lagothrica flavicauda and Pan troglodytes

Cognitive Processes in Cebus Monkeys (Cebus apella) when Solving Problem-Box Tasks

“…They also fit well into Piaget's theoretical frame concept which is used by some authors for compara tive analysis [Jolly, 1985;Parker andGibson, 1977, 1982;Mathieu et al, 1976Mathieu et al, , 1980Mathieu and Bergeron, 1981]. Since our results cannot be separated from the constantly changing methodology, it does not seem ap propriate to classify the data according to Piaget's stage model as is the case, for exam ple, with Parker and Gibson.…”

“…It is this kind of problem-box experiment in particular with its highly stimulative na ture and which appeals to the primates' ma nipulative capabilities, which could prove to be a valuable contribution to present comparative primatology based on Piaget's model of cognitive development [Parker, 1977;Parker andGibson, 1977, 1982;Mathieu et al, 1976Mathieu et al, , 1980Mathieu and Berge ron, 1981;Walker, 1983;Jolly, 1985].…”

Search behavior of dogs (Canis familiaris) in invisible displacement problems

“…Some species are able to solve invisible displacement problems, but the extent to which they are able to represent inferred movements is rarely assessed by a comparison with their capacity to represent perceived movements. There is convincing evidence; for example, that chimpanzees (Mathieu, Bouchard, Granger, & Herscovitch, 1976;Wood, Moriarty, Gardner, & Gardner, 1980) and gorillas (Natale et al, 1986;Redshaw, 1978) reach Stage 6 of object permanence and understand invisible displacements. There are indications that capuchin monkeys (Mathieu et al, 1976) and some psittacine birds (Pepperberg & Funk, 1990;Pepperberg & Kozak, 1986) are also able to infer and represent movements that they have not seen, although these results have been questioned (see Antinucci, 1989, andGagnon &Dore, 1992).…”

“…There is convincing evidence; for example, that chimpanzees (Mathieu, Bouchard, Granger, & Herscovitch, 1976;Wood, Moriarty, Gardner, & Gardner, 1980) and gorillas (Natale et al, 1986;Redshaw, 1978) reach Stage 6 of object permanence and understand invisible displacements. There are indications that capuchin monkeys (Mathieu et al, 1976) and some psittacine birds (Pepperberg & Funk, 1990;Pepperberg & Kozak, 1986) are also able to infer and represent movements that they have not seen, although these results have been questioned (see Antinucci, 1989, andGagnon &Dore, 1992). Except for Mathieu et al's (1976) study, which compared performances of one chimpanzee in visible and in invisible displacement tests (one error out of 60 trials in invisible displacements and one error out of 120 in visible SEARCH BEHAVIOR OF DOGS 253 displacement tests), the other studies (including those with human infants) describe their subjects as being able to solve invisible displacement problems without further qualifications or systematic comparisons with their performance in visible displacement tests.…”

Object Permanence in Common Marmosets (Callithrix jacchus).

“…Only a small number of those examined belonged to the New World monkeys, such as cotton-top tamarins (Saguinus oedipus: Hauser, Williams, Kralik, & Moskovitz, 2001;Santos, Ericson, & Hauser, 1999); two Cebus species, the tufted (white-throated) capuchin (Cebus capucinus: Mathieu et al, 1976;Snyder et al, 1978) and the brown capuchin (Cebus apella: Dumas & Brunet, 1994;Schino, Spinozzi, & Berlinguer, 1990;Snyder et al, 1978;Spinozzi, 1989); yellow-tailed woolly monkeys (Lagothrica flavicauda: Mathieu et al, 1976); squirrel monkeys (Saimiri sciureus: de Blois et al, 1998;Vaughter, Smotherman, & Ordy, 1972); and slender lories (Loris tardigradus : Jolly, 1964).…”