"... A Linear Model for Visual Feature Integration in the GF (Drosophila Giant Fiber)
Circuit.
To test our hypothesis that the GFs linearly integrate the separately
encoded features of looming stimulus size and angular
velocity, we developed a model to predict GF membrane potential
across visual stimuli (Figure 8A). In this four-component
model, the GFs linearly sum two excitatory components—
non-LC4(Type 4 lobula columnar neurons)-mediated angular size excitation and LC4-mediated
angular velocity excitation—and two inhibitory components—
non-LC4- and LC4-mediated angular size inhibition."
Reference:
1 .
von Reyn CR, Nern A, Williamson WR, Breads P, Wu M, Namiki S, Card GM (2017) Feature Integration Drives Probabilistic Behavior in the Drosophila Escape Response. Neuron 94:1190-1204.e6 [PubMed]
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