Modality and Morphology: What We Write May Not Be What We Say

Brenda C Rapp, Simon Fischer-Baum, Michele Miozzo

Research output: Contribution to journalArticle

Abstract

Written language is an evolutionarily recent human invention; consequently, its neural substrates cannot be determined by the genetic code. How, then, does the brain incorporate skills of this type? One possibility is that written language is dependent on evolutionarily older skills, such as spoken language; another is that dedicated substrates develop with expertise. If written language does depend on spoken language, then acquired deficits of spoken and written language should necessarily co-occur. Alternatively, if at least some substrates are dedicated to written language, such deficits may doubly dissociate. We report on 5 individuals with aphasia, documenting a double dissociation in which the production of affixes (e.g., the -ing in jumping) is disrupted in writing but not speaking or vice versa. The findings reveal that written- and spoken-language systems are considerably independent from the standpoint of morpho-orthographic operations. Understanding this independence of the orthographic system in adults has implications for the education and rehabilitation of people with written-language deficits.

Original languageEnglish (US)
Pages (from-to)892-902
Number of pages11
JournalPsychological Science
Volume26
Issue number6
DOIs
StatePublished - Jun 6 2015

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Language
Genetic Code
Modality
Written Language
Aphasia
Rehabilitation
Spoken Language
Education
Substrate
Brain
Orthographic
Language Deficits

Keywords

  • cognitive neuroscience
  • language
  • psycholinguistics

ASJC Scopus subject areas

  • Psychology(all)
  • Arts and Humanities (miscellaneous)

Cite this

Modality and Morphology : What We Write May Not Be What We Say. / Rapp, Brenda C; Fischer-Baum, Simon; Miozzo, Michele.

In: Psychological Science, Vol. 26, No. 6, 06.06.2015, p. 892-902.

Research output: Contribution to journalArticle

Rapp, Brenda C ; Fischer-Baum, Simon ; Miozzo, Michele. / Modality and Morphology : What We Write May Not Be What We Say. In: Psychological Science. 2015 ; Vol. 26, No. 6. pp. 892-902.
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