Development of bottom-up and top-down communication in visual and multisensory cortical networks in humans (B11*)

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The present study will test two hypotheses in human visual and multisensory neural networks: (1) The development of top-down communication lags behind the development of bottom-up processing; (2) the development of top-down processing depends to a larger extent on early sensory experience than the development of bottom-up processing. Two EEG paradigms, a visual attention and a multisensory paradigm, will be developed in human adults. They will consecutively be adapted to children (5-11 year old, prospective developmental approach) and sight-recovery individuals (retrospective developmental approach) to test these two hypotheses, respectively.