Abstract:
:Oxygen (O₂) and carbon dioxide (CO₂) levels vary in different environments and locally fluctuate during respiration and photosynthesis. Recent studies in diverse animals have identified sensory neurons that detect these external variations and direct a variety of behaviors. Detection allows animals to stay within a preferred environment as well as identify potential food or dangers. The complexity of sensation is reflected in the fact that neurons compartmentalize detection into increases, decreases, and short-range and long-range cues. Animals also adjust their responses to these prevalent signals in the context of other cues, allowing for flexible behaviors. In general, the molecular mechanisms for detection suggest that sensory neurons adopted ancient strategies for cellular detection and coupled them to brain activity and behavior. This review highlights the multiple strategies that animals use to extract information about their environment from variations in O₂ and CO₂.
journal_name
Neuronjournal_title
Neuronauthors
Scott Kdoi
10.1016/j.neuron.2010.12.018subject
Has Abstractpub_date
2011-01-27 00:00:00pages
194-202issue
2eissn
0896-6273issn
1097-4199pii
S0896-6273(10)01041-Xjournal_volume
69pub_type
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