The origins of vocal learning: New sounds, new circuits, new cells  

Oleh:

Nottebohm, Fernando ; Liu, Wan-Chun

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 115 no. 1 (2010), page 3-17.
Topik: Vocal learning Song Subsong Songbirds Sensitive periods Song dialects Song system HVC RA LMAN Chaffinch Zebra finch Canary Chipping sparrow White-crowned sparrow Swamp sparrow
Fulltext: 115_01_Nottebohm.pdf (1.12MB)

Isi artikel

We do not know how vocal learning came to be, but it is such a salient trait in human evolution that many have tried to imagine it. In primates this is difficult because we are the only species known to possess this skill. Songbirds provide a richer and independent set of data. I use comparative data and ask broad questions: How does vocal learning emerge during ontogeny? In what contexts? What are its benefits? How did it evolve from unlearned vocal signals? How was brain anatomy altered to enable vocal learning? What is the relation of vocal learning to adult neurogenesis? No one has described yet a circuit or set of circuits that can master vocal learning, but this knowledge may soon be within reach. Moreover, as we uncover how birds encode their learned song, we may also come closer to understanding how we encode our thoughts.

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