Figure 1.

CTMM schematic. Visual (bird) and auditory (accompanying song) inputs (top) are integrated continuously as they arrive at their common target neuron (middle). The multisensory input drives the neuron's impulse generator (dark gray ratchet) to produce its multisensory outputs (purple arrows). Note that the moment-by-moment integrated multisensory products (firing rate) are plotted graphically as “output” (bottom) and decrease over time. This is due to the influence of a delayed calibrating inhibition (shown in orange, middle), which disproportionately suppresses later portions of the response.