Adult zebra finches rehearse highly variable song patterns during sleep
Brain activity during sleep is fairly ubiquitous and the best studied possible function is a role in memory consolidation, including motor memory. One suggested mechanism of how neural activity effects these benefits is through reactivation of neurons in patterns resembling those of the preceding ex...
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2017
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_21678359_v2017_n11_p_Young http://hdl.handle.net/20.500.12110/paper_21678359_v2017_n11_p_Young |
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paper:paper_21678359_v2017_n11_p_Young2023-06-08T16:34:33Z Adult zebra finches rehearse highly variable song patterns during sleep Consolidation Motor program Motor replay Sleep Song adult brain function male muscle night nonhuman sleep stereotypy Taeniopygia guttata Brain activity during sleep is fairly ubiquitous and the best studied possible function is a role in memory consolidation, including motor memory. One suggested mechanism of how neural activity effects these benefits is through reactivation of neurons in patterns resembling those of the preceding experience. The specific patterns of motor activation replayed during sleep are largely unknown for any system. Brain areas devoted to song production in the songbird brain exhibit spontaneous song-like activity during sleep, but single cell neural recordings did not permit detection of the specific song patterns. We have now discovered that this sleep activation can be detected in the muscles of the vocal organ, thus providing a unique window into song-related brain activity at night. We show that male zebra finches (Taeniopygia guttata) frequently exhibit spontaneous song-like activity during the night, but that the fictive song patterns are highly variable and uncoordinated compared to the highly stereotyped day-time song production. This substantial variability is not consistent with the idea that night-time activity replays daytime experiences for consolidation. Although the function of this frequent activation is unknown, it may represent a mechanism for exploring motor space or serve to generate internal error signals that help maintain the high stereotypy of day-time song. In any case, the described activity supports the emerging insight that brain activity during sleep may serve a variety of functions. © 2017 Young et al. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_21678359_v2017_n11_p_Young http://hdl.handle.net/20.500.12110/paper_21678359_v2017_n11_p_Young |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Consolidation Motor program Motor replay Sleep Song adult brain function male muscle night nonhuman sleep stereotypy Taeniopygia guttata |
| spellingShingle |
Consolidation Motor program Motor replay Sleep Song adult brain function male muscle night nonhuman sleep stereotypy Taeniopygia guttata Adult zebra finches rehearse highly variable song patterns during sleep |
| topic_facet |
Consolidation Motor program Motor replay Sleep Song adult brain function male muscle night nonhuman sleep stereotypy Taeniopygia guttata |
| description |
Brain activity during sleep is fairly ubiquitous and the best studied possible function is a role in memory consolidation, including motor memory. One suggested mechanism of how neural activity effects these benefits is through reactivation of neurons in patterns resembling those of the preceding experience. The specific patterns of motor activation replayed during sleep are largely unknown for any system. Brain areas devoted to song production in the songbird brain exhibit spontaneous song-like activity during sleep, but single cell neural recordings did not permit detection of the specific song patterns. We have now discovered that this sleep activation can be detected in the muscles of the vocal organ, thus providing a unique window into song-related brain activity at night. We show that male zebra finches (Taeniopygia guttata) frequently exhibit spontaneous song-like activity during the night, but that the fictive song patterns are highly variable and uncoordinated compared to the highly stereotyped day-time song production. This substantial variability is not consistent with the idea that night-time activity replays daytime experiences for consolidation. Although the function of this frequent activation is unknown, it may represent a mechanism for exploring motor space or serve to generate internal error signals that help maintain the high stereotypy of day-time song. In any case, the described activity supports the emerging insight that brain activity during sleep may serve a variety of functions. © 2017 Young et al. |
| title |
Adult zebra finches rehearse highly variable song patterns during sleep |
| title_short |
Adult zebra finches rehearse highly variable song patterns during sleep |
| title_full |
Adult zebra finches rehearse highly variable song patterns during sleep |
| title_fullStr |
Adult zebra finches rehearse highly variable song patterns during sleep |
| title_full_unstemmed |
Adult zebra finches rehearse highly variable song patterns during sleep |
| title_sort |
adult zebra finches rehearse highly variable song patterns during sleep |
| publishDate |
2017 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_21678359_v2017_n11_p_Young http://hdl.handle.net/20.500.12110/paper_21678359_v2017_n11_p_Young |
| _version_ |
1768544480609173504 |