Turning visual shapes into sounds: Early stages of reading acquisition revealed in the ventral occipitotemporal cortex. - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue NeuroImage Année : 2014

Turning visual shapes into sounds: Early stages of reading acquisition revealed in the ventral occipitotemporal cortex.

Résumé

: The exact role of the left ventral occipitotemporal cortex (VOTC) during the initial stages of reading acquisition is a hotly debated issue, especially regarding the comparative effect of learning on early stimulus-dependent vs. later task-dependent processes. We show that this controversy can be solved with high-temporal resolution intracerebral EEG recordings of the VOTC. We measured High-Frequency Activity (50-150Hz) as a proxy of population-level spiking activity while participants learned Japanese Katakana symbols, and found that learning primarily affects top-down/task-dependent neural processing, after a few minutes only. In contrast, adaptation of early bottom-up/stimulus-dependent processing takes several days to adapt and provides the basis for fluent reading. Such evidence that two consecutive stages of neural processing, stimulus- and task-dependent are differentially affected by learning, can reconcile seemingly opposite hypotheses on the role of the VOTC during reading acquisition.

Domaines

Psychologie
Fichier non déposé

Dates et versions

hal-00929695 , version 1 (13-01-2014)

Identifiants

Citer

Marcela Perrone-Bertolotti, J. R. Vidal, L. de Palma, C. M. Hamamé, T. Ossandon, et al.. Turning visual shapes into sounds: Early stages of reading acquisition revealed in the ventral occipitotemporal cortex.. NeuroImage, 2014, 90, pp.298-307. ⟨10.1016/j.neuroimage.2013.12.027⟩. ⟨hal-00929695⟩
184 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More