Fig. 2. SC Dynamic Ranges in the newborn.
Activity of SC neurons in response to different inputs in the newborn. The x-axis reports the magnitude of simulated external inputs in arbitrary units, while the y-axis the normalized activity evoked in the stimulated SC neurons. The activity was assessed by stimulating the model with auditory (small dotted line), visual (big dotted line) and cross-modal (solid line) inputs, presented in the center of their relative RFs, at various intensities. Before the training phase, the SC shows no multisensory integration and the cross-modal responses are no bigger than the best unisensory response. Note that the predicted sum (dash-dotted line) far outpaces the actual multisensory response.
