Figure 8.

Spatial correspondence between EAAT4 expression in PCs and the response to peripheral input in Crus II. A, Example images of the patch-like Ca²⁺ responses in Crus II evoked by stimulation of the ipsilateral vibrissae using the EAAT4 reporter mouse that expresses GFP under the control of the EAAT4 promoter. The responses align with parasagittal regions expressing lower levels of the EAAT4 transporter. B, Evoked Ca²⁺ fluorescence responses (black trace) and background EAAT4 fluorescence in the same folium (gray trace) corresponding to the images in A. Correlation coefficient (ρ) between the background fluorescence and the evoked response is shown.