Published online by Cambridge University Press: 26 September 2008
This study of children's conjunction reduction contrasted the syntactic view of forward and backward deletion of base structure elements with the idea that pragmatic factors of situational redundancy and perceptual grouping account for conjunction reduction. Ninety-four children described an action sequence (putting differently coloured beads into a cup) so that a listener positioned behind a screen could repeat them. Half the children communicated as the action was being carried out (SIMULTANEOUS condition), mitigating against perceptual grouping of beads in the cup. Half communicated after the action was completed (POST condition), permitting perceptual grouping. Backward deletion was more frequent in the post than in the simultaneous condition. Also, the overall high frequency of forward deletion reflected encoding of novelty and omission of repetitive elements. These results suggest syntax is pragmatically motivated.
Research and preparation of this paper was supported by a grant from the Spencer Foundation to the senior author. A preliminary version of this analysis was presented at the 1979 Stanford Language Research Forum. A critique of that paper was subsequently presented by Lust, Flynn, Chien and Clifford at the 1980 Forum. The interpretation of our study, as presented in this article, was very much influenced by this critique, to which we therefore owe an intellectual debt. Comments on the original paper made by members of the psycholinguistics research group, Laboratoire de Psychologie Expérimentale, Paris, France, also contributed to a reconceptualization of the results incorporated into this article. We also thank Juan Segui for his careful criticism of an earlier draft. Address for correspondence: Dr P. M. Greenfield, Psychology Department, UCLA, 405 Hilgard Ave., Los Angeles, Ca. 90024, U.S.A.