Journal
NEURON
Volume 32, Issue 5, Pages 899-910Publisher
CELL PRESS
DOI: 10.1016/S0896-6273(01)00524-4
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Funding
- NIMH NIH HHS [MH60276, MH59831] Funding Source: Medline
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In the zebra finch forebrain nucleus robustus archistriatalis (RA), neurons burst during singing. We showed that the internal structure of spike bursts was regulated with a precision of circa 0.2 ms, and yielded alignment of acoustic features of song with a precision of circa I ms. In addition, interburst intervals and corresponding syllable durations displayed systematic variation within song (average elongation 0.3 ms/s song), and slower drift across songs. Systematic variation on even a coarser time scale might be difficult to detect in other systems, but could affect the analysis of temporal patterning. The close relationship between precise timing of individual spikes and stereotypic behavior suggests that song is represented in RA by a temporal code.
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