Integration of visual and infrared information in bimodal neurons in the rattlesnake optic tectum

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Science  14 Aug 1981:
Vol. 213, Issue 4509, pp. 789-791
DOI: 10.1126/science.7256281


Bimodal neurons in the rattlesnake tectum, which receive sensory input from the retina and from the infrared-sensing pit organ, exhibit novel, highly nonlinear cross-modality interactions. Some units respond only to simultaneous bimodal stimulation. Others respond to only one of the two modalities, but show greatly enhanced or depressed responses when stimulated simultaneously in the second modality. These cross-modality interactions may play an important role in recognizing and orienting toward biologically important objects.

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