Fig. 10. Paired current-clamp recordings of spontaneous activity from the somata of mitral cells. A, Simultaneous recordings showing synchronous LLDs from cells sharing the same glomerulus. B, Drawing of the cells recorded inA, with glomerulus indicated by the dashed line. Designation of the cells corresponds to their representative traces in A (cell 1,black; cell 2, gray) C, Cross-correlogram calculated from 5 min of paired recording showing synchronized LLDs. D, E, In contrast, simultaneous recordings from three cells whose dendrites project to different glomeruli display asynchronous LLD activity.F, Drawing of cells recorded from in Dand E. G, Drawing of the cells shown inF, rotated 90°, i.e., as viewed from the surface of the bulb, demonstrating that each dendritic tuft ramifies in a different glomerulus. H, Cross-correlogram from 5 min of paired recording from cells projecting to different glomeruli.