Schematic of odor representation and evaluation in the lateral horn, a higher center in the vinegar fly brain (IMAGE)
Caption
Schematic of odor representation and evaluation in the lateral horn, a higher center in the vinegar fly brain. Excitatory or inhibitory input from neurons originating from the antennal lobe determine odor perception-based activity patterns and fine-tuning in neurons of the lateral horn. The strength of the odor response of these neurons determines the behavioral preference. Examples for the neuronal representation of odors are isoamyl acetate, a typical banana odor that flies are highly attracted to, and geosmin, the odor of toxic bacteria and mold on rotten food that triggers an escape behavior in flies. LH = Lateral Horn. AL = Antennal Lobe (the primary olfactory center in the brain). LHN = Lateral Horn Neurons. uPN = uniglomerular Projection Neurons. mPN = multiglomerular Projection Neurons. MB = Mushroom Body; apart from the LH the second higher brain center. LN = Local Neurons.
Credit
Sudeshna Das Chakraborty
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