Fig. 3. Electric organ discharge (EOD) activity recorded during the rotation of a multimodal stimulus object and its unimodal components. Each row of graphs is from a different fish. The vertical broken arrow represents the time of the object's minimum lateral distance from the fish. The multisensory novelty responses (NRs) are larger than their component unisensory NRs (A,C,E). Moreover, the multisensory NRs are larger than the simple linear sum of their component unisensory NRs (B,D,F).