Replay of innate vocal patterns during night sleep in suboscines
| Autor: | Juan F. Döppler, Manon Peltier, Franz Goller, Gabriel B. Mindlin, Ana Amador |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Model system
Biology Motor behaviour General Biochemistry Genetics and Molecular Biology Neuroscience and Cognition Songbirds 03 medical and health sciences 0302 clinical medicine Prosencephalon Animals Learning Night sleep 030304 developmental biology General Environmental Science 0303 health sciences General Immunology and Microbiology Mechanism (biology) General Medicine Sleep in non-human animals Forebrain Vocal learning Memory consolidation Vocalization Animal General Agricultural and Biological Sciences Sleep Neuroscience 030217 neurology & neurosurgery |
| Zdroj: | Proc Biol Sci |
| Popis: | Activation of forebrain circuitry during sleep has been variably characterized as ‘pre- or replay’ and has been linked to memory consolidation. The evolutionary origins of this mechanism, however, are unknown. Sleep activation of the sensorimotor pathways of learned birdsong is a particularly useful model system because the muscles controlling the vocal organ are activated, revealing syringeal activity patterns for direct comparison with those of daytime vocal activity. Here, we show that suboscine birds, which develop their species-typical songs innately without the elaborate forebrain–thalamic circuitry of the vocal learning taxa, also engage in replay during sleep. In two tyrannid species, the characteristic syringeal activation patterns of the song could also be identified during sleep. Similar to song-learning oscines, the burst structure was more variable during sleep than daytime song production. In kiskadees ( Pitangus sulphuratus ), a second vocalization, which is part of a multi-modal display, was also replayed during sleep along with one component of the visual display. These data show unambiguously that variable ‘replay’ of stereotyped vocal motor programmes is not restricted to programmes confined within forebrain circuitry. The proposed effects on vocal motor programme maintenance are, therefore, building on a pre-existing neural mechanism that predates the evolution of learned vocal motor behaviour. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|