Echolocating bats detect but misperceive a multidimensional incongruent acoustic stimulus.

ABSTRACT: Coherent perception relies on integrating multiple dimensions of a sensory modality, for example, color and shape in vision. We reveal how different acoustic dimensions, specifically echo intensity and sonar aperture (or width), are important for correct perception by echolocating bats. We flew bats down a corridor blocked by objects with different intensity-aperture combinations. To our surprise, bats crashed straight into large (aperture) walls with weak echo intensity as if they did not exist. The echolocation behavior of the bats indicated that they did detect the wall, suggesting that crashing was not a result of limited sensory sensitivity, but of a perceptual deficit. We systematically manipulated intensity and aperture by changing the materials and width of different reflectors, an

SUBMITTER: Danilovich S 

PROVIDER: S-EPMC7668068 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature