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Gene loss, adaptive evolution and the co-evolution of plumage coloration genes with opsins in birds.
(BMC Genomics, 2015-10-06)
BACKGROUND: The wide range of complex photic systems observed in birds exemplifies
one of their key evolutionary adaptions, a well-developed visual system. However,
genomic approaches have yet to be used to disentangle the ...
Influence of network topology and data collection on network inference.
(Pac Symp Biocomput, 2003)
We recently developed an approach for testing the accuracy of network inference algorithms
by applying them to biologically realistic simulations with known network topology.
Here, we seek to determine the degree to which ...
Assessing visual requirements for social context-dependent activation of the songbird song system.
(Proc Biol Sci, 2009-01-22)
Social context has been shown to have a profound influence on brain activation in
a wide range of vertebrate species. Best studied in songbirds, when males sing undirected
song, the level of neural activity and expression ...
Spatial and temporal scales of neuronal correlation in visual area V4.
(J Neurosci, 2013-03-20)
The spiking activity of nearby cortical neurons is correlated on both short and long
time scales. Understanding this shared variability in firing patterns is critical
for appreciating the representation of sensory stimuli ...
The Origin and Diversification of Birds.
(Curr Biol, 2015-10-05)
Birds are one of the most recognizable and diverse groups of modern vertebrates. Over
the past two decades, a wealth of new fossil discoveries and phylogenetic and macroevolutionary
studies has transformed our understanding ...
Corollary discharge circuits in the primate brain.
(Curr Opin Neurobiol, 2008-12)
Movements are necessary to engage the world, but every movement results in sensorimotor
ambiguity. Self-movements cause changes to sensory inflow as well as changes in the
positions of objects relative to motor effectors ...
Olfactory Receptor Subgenomes Linked with Broad Ecological Adaptations in Sauropsida.
(Mol Biol Evol, 2015-11)
Olfactory receptors (ORs) govern a prime sensory function. Extant birds have distinct
olfactory abilities, but the molecular mechanisms underlining diversification and
specialization remain mostly unknown. We explored OR ...
Songbirds and the revised avian brain nomenclature.
(Ann N Y Acad Sci, 2004-06)
It has become increasingly clear that the standard nomenclature for many telencephalic
and related brainstem structures of the avian brain is based on flawed once-held assumptions
of homology to mammalian brain structures, ...
Brain evolution by brain pathway duplication.
(Philos Trans R Soc Lond B Biol Sci, 2015-12-19)
Understanding the mechanisms of evolution of brain pathways for complex behaviours
is still in its infancy. Making further advances requires a deeper understanding of
brain homologies, novelties and analogies. It also requires ...
The evolving capabilities of rhodopsin-based genetically encoded voltage indicators.
(Curr Opin Chem Biol, 2015-08)
Protein engineering over the past four years has made rhodopsin-based genetically
encoded voltage indicators a leading candidate to achieve the task of reporting action
potentials from a population of genetically targeted ...