التفاصيل البيبلوغرافية
| العنوان: |
Turning visual shapes into sounds: Early stages of reading acquisition revealed in the ventral occipitotemporal cortex. |
| المؤلفون: |
Perrone-Bertolotti, M.1,2,3,4,5 perronemarcela@gmail.com, Vidal, J.R.3,4, de Palma, L.6, Hamamé, C.M.7, Ossandon, T.8, Kahane, P.5,6, Minotti, L.5,6, Bertrand, O.3,4, Lachaux, J.-P.3,4 |
| المصدر: |
NeuroImage. Apr2014, Vol. 90, p298-307. 10p. |
| مصطلحات موضوعية: |
*VISUAL cortex, *READING, *TEMPORAL lobe, *OCCIPITAL lobe, *ELECTROENCEPHALOGRAPHY, *LEARNING |
| مستخلص: |
Abstract: 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. [Copyright &y& Elsevier] |
| قاعدة البيانات: |
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