期刊
BMC BIOLOGY
卷 12, 期 -, 页码 -出版社
BMC
DOI: 10.1186/1741-7007-12-16
关键词
Sleep; Slow waves; Propagation; Travelling; Bird; Cortex
类别
资金
- Max Planck Society
- Marie Curie Intra European Fellowship within the 7th European Community Framework Programme
Background: In mammals, the slow-oscillations of neuronal membrane potentials (reflected in the electroencephalogram as high-amplitude, slow-waves), which occur during non-rapid eye movement sleep and anesthesia, propagate across the neocortex largely as two-dimensional traveling waves. However, it remains unknown if the traveling nature of slow-waves is unique to the laminar cytoarchitecture and associated computational properties of the neocortex. Results: We demonstrate that local field potential slow-waves and correlated multiunit activity propagate as complex three-dimensional plumes of neuronal activity through the avian brain, owing to its non-laminar, nuclear neuronal cytoarchitecture. Conclusions: The traveling nature of slow-waves is not dependent upon the laminar organization of the neocortex, and is unlikely to subserve functions unique to this pattern of neuronal organization. Finally, the three-dimensional geometry of propagating plumes may reflect computational properties not found in mammals that contributed to the evolution of nuclear neuronal organization and complex cognition in birds.
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