Figure 5.

In vivo intracellular recording reveals both suprathreshold and subthresohold responses of mitral cells. A, A representative response of a mitral cell to presentation of an odor mixture. Odor presentation consistently evokes both suprathreshold and subthreshold responses of the mitral cell across multiple trials (n = 8). Conventions are as in Figure 1. Calibration: 20 mV, 1 s. B, Intracellular neurobiotin staining reveals recorded cells are situated in the mitral cell layer. The mitral cell layer is designated by arrowheads, and two filled cells are indicated by arrows. The right panel shows a higher-magnification image of the cell within the boxed region of the left panel.