Figure 1.

Anatomical and electrophysiological survey of the LH. Top left, Flattened confocal stack of an unlabeled locust brain. Dotted circle, LH. AN, Antennal nerve; ON, optic nerve. Sharp intracellular recordings were made from LHNs, and simultaneous extracellular LFP recordings were made from the ipsilateral MB calyx. Middle, Ten morphologically distinct classes of LHNs, illustrated with hand-traced intracellular dye fills. Somata of C10 neurons were not detected. Bottom, Representative intracellular recordings from the 10 LHN classes, showing their responses to odor presentations (gray bars). Calibration bars, 10 mV.