Categorization and abstraction abilities in 3-year-old children: a comparison with monkey data

Three-year-old children were tested on three categorization tasks of increasing levels of abstraction (used with adult baboons in an earlier study): the first was a conceptual categorization task (food vs toys), the second a perceptual matching task (same vs different objects), and the third a relational matching task in which the children had to sort pairs according to whether or not the two items belonged to the same or different categories. The children were tested using two different procedures, the first a replication of the procedure used with the baboons (pulling one rope for a category or a relationship between two objects, and another rope for the other category or relationship), the second a task based upon children’s prior experiences with sorting objects (putting in the same box objects belonging to the same category or a pair of objects exemplifying the same relation). The children were able to solve the first task (conceptual categorization) when tested with the sorting into boxes procedure, and the second task (perceptual matching) when tested with both procedures. The children were able to master the third task (relational matching) only when the rules were clearly explained to them, but not when they could only watch sorting examples. In fact, the relational matching task without explanation requires analogy abilities that do not seem to be fully developed at 3 years of age. The discrepancies in performances between children tested with the two procedures, with the task explained or not, and the discrepancies observed between children and baboons are discussed in relation to differences between species and/or problem-solving strategies.

[1]  M. W. Daehler,et al.  Matching and equivalence judgments in very young children. , 1979, Child development.

[2]  Jodie M. Plumert,et al.  Evidence for Task-Dependent Categorization in Infancy , 1996 .

[3]  Linda B. Smith,et al.  The Development of Identity as a Privileged Relation in Classification: When Very Similar is Just Not Similar Enough , 1988 .

[4]  E. Markman,et al.  Young children's inductions from natural kinds: the role of categories and appearances. , 1987, Child development.

[5]  D. Rumbaugh,et al.  Reference: the linguistic essential. , 1980, Science.

[6]  Ann L. Brown,et al.  Melting chocolate and melting snowmen: Analogical reasoning and causal relations , 1990, Cognition.

[7]  Donald J. Tyrrell,et al.  Perception of abstract identity/difference relationships by infants , 1991 .

[8]  J. Vauclair,et al.  Judgment of conceptual identity in monkeys , 2001, Psychonomic bulletin & review.

[9]  D. K. Nelson,et al.  Attention to functional properties in toddlers' naming and problem-solving * , 1999 .

[10]  G. Ross.  Categorization in 1- to 2-yr-olds. , 1980 .

[11]  R. J. Herrnstein,et al.  Levels of stimulus control: A functional approach , 1990, Cognition.

[12]  Wayne D. Gray,et al.  Basic objects in natural categories , 1976, Cognitive Psychology.

[13]  Daryl B. Greenfield,et al.  Young Children's Preference for Complementary Pairs: Evidence against a Shift to a Taxonomic Preference. , 1986 .

[14]  J. Vauclair,et al.  Picture recognition in animals and humans , 2000, Behavioural Brain Research.

[15]  R. Corrigan,et al.  Form versus Function Revisited: The Role of Social Input and Memory Factors. , 1984 .

[16]  J. Deloache,et al.  Grasping the Nature of Pictures , 1998 .

[17]  E. Rosch,et al.  Family resemblances: Studies in the internal structure of categories , 1975, Cognitive Psychology.

[18]  Linda B. Smith.  Development of classification: The use of similarity and dimensional relations ☆ , 1983 .

[19]  D. H. Dodd,et al.  Early word meanings: perceptually or functionally based? , 1980, Child development.

[20]  Ann L. Brown,et al.  Conceptual preference for thematic or taxonomic relations: A nonmonotonic age trend from preschool to old age ☆ , 1979 .

[21]  Nell K. Duke,et al.  Two-year-olds will name artifacts by their functions. , 2000, Child development.

[22]  Jacques Vauclair,et al.  Functional categorization of objects and of their pictures in baboons , 1998 .

[23]  R. K. Thompson,et al.  Language-naive chimpanzees (Pan troglodytes) judge relations between relations in a conceptual matching-to-sample task. , 1997, Journal of experimental psychology. Animal behavior processes.

[24]  E. Markman,et al.  Developmental differences in the acquisition of basic and superordinate categories. , 1980 .

[25]  Katherine Nelson,et al.  Taxonomic Knowledge: What Kind and When? , 1992 .

[26]  U. Goswami,et al.  Causal reasoning about pairs of relations and analogical reasoning in young children , 1998 .