Dissecting a circuit for olfactory behaviour in Caenorhabditis elegans

By Sreekanth H. Chalasani, N. Chronis, Makoto Tsunozaki, Jesse M. Gray, D. Ramot, M. Goodman, Cori Bargmann. Nature, 2007

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Structural Properties of the Caenorhabditis elegans Neuronal Network (2009, methodology): “Such excitat ion can be generated in sensory neurons by presenting a sensory stimulus [62] or in any neuron by expres sing channelrhodopsin in that cell [26], [63], [64].”
A Framework for Studying Emotions Across Phylogeny (2014, positive): “Studies in C. elegans have identified neuropeptides, biogenic amines and the underlying circuitry that controls opposing, persistent behavioral states such as roaming, in remarkable detail (Chalasani et al., 2007; Flavell et al., 2013) (Figure 6b, c).”
Imaging neural activity in worms, flies and mice with improved GCaMP calcium indicators (2009, background): “Among single fluorescent protein–based GECIs, the GCaMP family has found the broadest use across multiple model organism”
Glutamate is an inhibitory neurotransmitter in the Drosophila olfactory system (2013, background): “This arrangement creates a pair of opponent neural channels that respond in an anticorrelated fashion to odor presentation or odor removal (34), analogous to opponent channels in the visual system.”