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• W3108465983 abstract "Animals need to acquire adequate and sufficient information to guide movements, yet information acquisition and processing are costly. Animals thus face a trade-off between gathering too little and too much information and, accordingly, actively adapt sensory input through motor control. Echolocating animals provide a unique opportunity to study the dynamics of adaptive sensing in naturally behaving animals, as every change in the outgoing echolocation signal directly affects information acquisition and the perception of the dynamic acoustic scene. Here, we investigated the flexibility with which bats dynamically adapt information acquisition depending on a task. We recorded the echolocation signals of wild-caught Western barbastelle bats (Barbastella barbastellus) while they were flying through an opening, drinking on the wing, landing on a wall and capturing prey. We show that the echolocation signal sequences during target approach differed in a task-dependent manner; bats started the target approach earlier and increased the information update rate more when the task became increasingly difficult, and bats also adjusted the dynamics of call duration shortening and peak frequency shifts accordingly. These task-specific differences existed from the onset of object approach, implying that bats plan their sensory-motor programme for object approach exclusively based on information received from search call echoes. We provide insight into how echolocating animals deal with the constraints they face when sequentially sampling the world through sound by adjusting acoustic information flow from slow to extremely fast in a highly dynamic manner. Our results further highlight the paramount importance of high behavioural flexibility for acquiring information." @default.
• W3108465983 created "2020-12-07" @default.
• W3108465983 creator A5035127244 @default.
• W3108465983 date "2020-01-01" @default.
• W3108465983 modified "2023-10-16" @default.
• W3108465983 title "Task-dependent vocal adjustments to optimize biosonar-based information acquisition" @default.
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• W3108465983 doi "https://doi.org/10.1242/jeb.234815" @default.
• W3108465983 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34005722" @default.
• W3108465983 hasPublicationYear "2020" @default.
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