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 language||American English|
|Title of host publication||CogSci 2017 - Proceedings of the 39th Annual Meeting of the Cognitive Science Society|
|Subtitle of host publication||Computational Foundations of Cognition|
|Publisher||The Cognitive Science Society|
|Number of pages||6|
|State||Published - 2017|
|Event||39th Annual Meeting of the Cognitive Science Society: Computational Foundations of Cognition, CogSci 2017 - London, United Kingdom|
Duration: 26 Jul 2017 → 29 Jul 2017
|Name||CogSci 2017 - Proceedings of the 39th Annual Meeting of the Cognitive Science Society: Computational Foundations of Cognition|
|Conference||39th Annual Meeting of the Cognitive Science Society: Computational Foundations of Cognition, CogSci 2017|
|Period||26/07/17 → 29/07/17|
Bibliographical noteFunding Information:
This study was supported by the Israel Science Foundation (ISF grant no. 616/11 and Canada-Israel grant no. 2425/15), the Gatsby Charitable Foundation, The German-Israeli Foundation for Scientific Research and Development (grant no. I-1303-105.4/2015), Canadian Institutes of Health Research (CIHR), The International Development Research Center (IDRC) and the Azrieli Foundation.
© CogSci 2017.
- Bayesian inference
- dyslexia, anchoring hypothesis of dyslexia
- implicit memory
- statistical learning