Academia.eduAcademia.edu

On the Origins of Phonology

2017, Current Directions in Psychological Science

Abstract

Why do humans drink and drive but fail to rdink and rdive? Here, I suggest that these regularities could reflect abstract phonological principles that are active in the minds and brains of all speakers. In support of this hypothesis, I show that (a) people converge on the same phonological preferences (e.g., dra over rda) even when the relevant structures (e.g., dra, rda) are unattested in their language and that (b) such behavior is inexplicable by purely sensorimotor pressures or experience with similar syllables. Further support for the distinction between phonology and the sensorimotor system is presented by their dissociation in dyslexia, on the one hand, and the transfer of phonological knowledge from speech to sign, on the other. A detailed analysis of the phonological system can elucidate the functional architecture of the typical mind/brain and the etiology of speech and language disorders.

Key takeaways

  • The possibility that phonology is an abstract combinatorial system, distinct from the sensorimotor channel, is further supported by the finding that sensitivity to phonological patterns is dissociable from the acoustic and motor demands of the stimulus (see "Phonological universals in the brains of individual speakers" below) and that certain phonological restrictions apply to both speech and signs (see "Amodal Design: Phonology by Mouth and by Hand" below).
  • Not only are phonological patterns formed by abstract rules, but those rules are potentially universal (Prince & Smolensky, 1993/2004 and possibly specialized for phonology.
  • Together, these findings suggest that phonological (and morphological) knowledge relies on abstract linguistic principles that apply to both speech and signs.
  • Beyond its theoretical significance, the structure of phonology also carries translational implications for the host of language disorders that implicate a phonological deficit at their core.
  • To determine whether phonology is a specialized biological system, we have thus investigated (a) whether speakers of different languages converge on shared phonological principles and (b) whether phonological principles are distinct from sensorimotor pressures.