Fig. 1.

A hypothetical schematic of sensory inputs that produce bimodal and unimodal sensory responses. The bimodal neuron (grey) receives inputs (black) at differing locations and number (or weighting) from sensory modalities ‘A’ and ‘B’. These inputs produce suprathreshold activity in either modality when stimulated alone. In addition, when inputs from ‘A + B’ are combined, responses can be integrated to the extent that they are significantly different from responses to either of the inputs alone. In contrast, the unimodal neuron receives inputs from only one modality (‘A’), and is unaffected by the presence of stimuli in modality (‘B’) alone or in combination with (‘A’)