FIGURE 3. In vivo recording from a mitral cell responding to rI7 ligands.

From the following article:

Odorant receptors instruct functional circuitry in the mouse olfactory bulb

Leonardo Belluscio, Claudia Lodovichi, Paul Feinstein, Peter Mombaerts and Lawrence C. Katz

Nature 419, 296-300(19 September 2002)

doi:10.1038/nature01001

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a, In the initial 10 s of recording, the cell has low spontaneous activity. Presentation of octanal (1%, arrowhead) elicits rhythmic bursts (2–4 spikes, inset shows a 60-ms segment) synchronized with breathing rhythm (lower trace). b, Total number of spikes for a 30-s combined presentation of odorants shows that robust activity is elicited by octanal and heptanal, but the response to citral (and all other odorants tested, not shown) is comparable to background. Inset shows the recording location, which was located 220 microm below a GFP-labelled rI7 right arrow M71 glomerular region (arrowhead).

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