▪ Abstract We examine early olfactory processing in the vertebrate and insect olfactory
systems, using a computational perspective. What transformations occur between the first and …

Insects and vertebrates separately evolved remarkably similar mechanisms to process olfactory
information. Odors are sampled by huge numbers of receptor neurons, which converge …

… of 1.25 M solution for group 1, 2 µl of 2 M solution for group 2, presented to the antenna and
the proboscis 3 s after odorant pulse onset), every 2 min (group 1) or 30 s (group 2). Animals …

… of spike counts; each vector had k = n × m dimensions, where n is the number of PNs
considered (up to 110), and m is the number of time bins (eg, m = 20 for 50 ms bins over a 1 s …

… lobe neurons (including 200 paired intracellular recordings in 51 animals) were made
using sharp glass micropipettes (150–250 MΩ, Sutter P87 horizontal puller) filled with 0.5 M …

Transient pairwise synchronization of locust antennal lobe (AL) projection neurons (PNs)
occurs during odor responses. In a Hodgkin-Huxley-type model of the AL, interactions between …

Highlights • The mushroom bodies integrate and format sensory information. • Mushroom body
information processing functions include gain control, response sparsening, decorrelation…

… & Stopfer, M. Encoding a temporally structured stimulus with a temporally structured neural
… We are grateful to members of the Stopfer laboratory for helpful discussions. We especially …

… We are grateful to members of the Stopfer lab for helpful discussions. This work was funded
by an intramural grant from the National Institutes of Health, the National Institute of Child …

… tablished by repeated stimulation (see below; Stopfer just skip the cycle and produce no …
0.4 S between LNs; Novato, CA) filled with 0.5 M potassium acetate and amplified with gGABAA …