Uncovering the Richness of the Stimulus: Structure Dependence and Indirect Statistical Evidence
Article first published online: 11 FEB 2010
© 2005 Cognitive Science Society, Inc.
Volume 29, Issue 6, pages 1007–1028, November-December 2005
How to Cite
Reali, F. and Christiansen, M. H. (2005), Uncovering the Richness of the Stimulus: Structure Dependence and Indirect Statistical Evidence. Cognitive Science, 29: 1007–1028. doi: 10.1207/s15516709cog0000_28
- Issue published online: 11 FEB 2010
- Article first published online: 11 FEB 2010
- Received 12 August 2004; received in revised form 9 March 2005; accepted 22 March 2005
- Poverty of stimulus;
- Distributional information;
- Corpus analysis;
- Neural networks;
- Language acquisition
The poverty of stimulus argument is one of the most controversial arguments in the study of language acquisition. Here we follow previous approaches challenging the assumption of impoverished primary linguistic data, focusing on the specific problem of auxiliary (AUX) fronting in complex polar interrogatives. We develop a series of corpus analyses of child-directed speech showing that there is indirect statistical information useful for correct auxiliary fronting in polar interrogatives and that such information is sufficient for distinguishing between grammatical and ungrammatical generalizations, even in the absence of direct evidence. We further show that there are simple learning devices, such as neural networks, capable of exploiting such statistical cues, producing a bias toward correct AUX questions when compared to their ungrammatical counterparts. The results suggest that the basic assumptions of the poverty of stimulus argument may need to be reappraised.