Nature 419, 65–70 (2002).
In this Letter, the numbering on the middle panel of Fig. 2b was misaligned. The figure should have appeared as shown.
Spike raster plot of ten HVC(RA) neurons and two HVC interneurons recorded in one bird during singing (left) and call vocalizations (right). Each row of tick marks shows spikes generated during one rendition of the song or call; roughly ten renditions are shown for each neuron. Neural activity is aligned by the acoustic onset of the nearest syllable. HVC(RA) neurons burst reliably at a single precise time in the song or call; however, HVC interneurons spike or burst densely throughout the vocalizations
In the Acknowledgements, F. Nottebohm's surname was misspelled.
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The online version of the original article can be found at 10.1038/nature00974
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Hahnloser, R., Kozhevnikov, A. & Fee, M. Erratum: An ultra-sparse code underlies the generation of neural sequences in a songbird. Nature 421, 294 (2003). https://doi.org/10.1038/nature01221
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DOI: https://doi.org/10.1038/nature01221
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