TY  - INPR
A1  - García Rosales, Francisco
A1  - López Jury, Luciana
A1  - González Palomares, Eugenia
A1  - Wetekam, Johannes
A1  - Cabral-Calderı́n, Yuranny
A1  - Kiai, Ava
A1  - Kössl, Manfred
A1  - Hechavarria-Cueria, Julio C.
T1  - Echolocation reverses information flow in a cortical vocalization network
T2  - bioRxiv
N2  - The mammalian frontal and auditory cortices are important for vocal behaviour. Here, using local field potential recordings, we demonstrate for the first time that the timing and spatial pattern of oscillations in the fronto-auditory cortical network of vocalizing bats (Carollia perspicillata) predict the purpose of vocalization: echolocation or communication. Transfer entropy analyses revealed predominantly top-down (frontal-to-auditory cortex) information flow during spontaneous activity and pre-vocal periods. The dynamics of information flow depended on the behavioural role of the vocalization and on the timing relative to vocal onset. Remarkably, we observed the emergence of predominantly bottom-up (auditory-to-frontal cortex) information transfer patterns specific echolocation production, leading to self-directed acoustic feedback. Electrical stimulation of frontal areas selectively enhanced responses to echolocation sounds in auditory cortex. These results reveal unique changes in information flow across sensory and frontal cortices, potentially driven by the purpose of the vocalization in a highly vocal mammalian model.
Y1  - 2022
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/72873
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-728733
IS  - 2021.03.15.435430
ER  -