Cortical neurons of bats respond best to echoes from nearest targets when listening to natural biosonar multi-echo streams.

ABSTRACT: Bats orientate in darkness by listening to echoes from their biosonar calls, a behaviour known as echolocation. Recent studies showed that cortical neurons respond in a highly selective manner when stimulated with natural echolocation sequences that contain echoes from single targets. However, it remains unknown how cortical neurons process echolocation sequences containing echo information from multiple objects. In the present study, we used echolocation sequences containing echoes from three, two or one object separated in the space depth as stimuli to study neuronal activity in the bat auditory cortex. Neuronal activity was recorded with multi-electrode arrays placed in the dorsal auditory cortex, where neurons tuned to target-distance are found. Our results show that target-distance en

SUBMITTER: Beetz MJ 

PROVIDER: S-EPMC5081524 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature