Research Article

Crossmodal Links between Vision and Touch in Spatial Attention: A Computational Modelling Study

Figure 3

Exemplary temporal patterns of neuron responses to a visual target delivered either on one side or on the other side in condition B (application of the top-down bias input = 10 to the bimodal neuron in one hemisphere contralateral to the attended side). Only the responses to a visual target are shown since in condition B responses on each side do not differ significantly across modalities. Panel (a) displays the response of neurons in the attended side to a visual target on that side. Panel (b) displays the response of neurons in the unattended side to a visual target on that side. In each panel, the displayed curves are the time response of the unimodal neuron on which the target stimulus is centred, the time response of the bimodal neuron, and the time response of the inhibitory neuron. The blue vertical dashed line denotes the onset time of the target stimulus, maintained throughout the rest of the simulation.
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(a) Target stimulus on the attended side
304941.fig.003b
(b) Target stimulus on the unattended side