In search for the relevant space of implicit memory deficit in dyslexia

Sagi Jaffe-Dax, Merav Ahissar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Studies of dyslexics, whose implicit memory is impaired, suggest that their implicit inference of sound statistics and its integration into perception is inefficient. Specifically, dyslexics' implicit memory decays faster and consequently only accumulates information over shorter temporal windows. We now ask whether this abnormal dynamic is domain general by measuring its cortical distribution. We measure the dynamics of behavioral context effects and the concurrent neural adaptation during fast acquisition fMRI. We find a similar pattern of fast decay of adaptation across a broad range of cortical areas, though most significant effects are found in auditory cortex. This broad neural distribution suggests that the relevant aspect of implicit statistical inferences is not the nature of stimuli, but their temporal distribution.

Original languageAmerican English
Title of host publicationCogSci 2017 - Proceedings of the 39th Annual Meeting of the Cognitive Science Society
Subtitle of host publicationComputational Foundations of Cognition
PublisherThe Cognitive Science Society
Pages2267-2272
Number of pages6
ISBN (Electronic)9780991196760
StatePublished - 2017
Event39th Annual Meeting of the Cognitive Science Society: Computational Foundations of Cognition, CogSci 2017 - London, United Kingdom
Duration: 26 Jul 201729 Jul 2017

Publication series

NameCogSci 2017 - Proceedings of the 39th Annual Meeting of the Cognitive Science Society: Computational Foundations of Cognition

Conference

Conference39th Annual Meeting of the Cognitive Science Society: Computational Foundations of Cognition, CogSci 2017
Country/TerritoryUnited Kingdom
CityLondon
Period26/07/1729/07/17

Bibliographical note

Publisher Copyright:
© CogSci 2017.

Keywords

  • Bayesian inference
  • adaptation
  • dyslexia, anchoring hypothesis of dyslexia
  • fMRI
  • implicit memory
  • statistical learning

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