Figure 5: In vivo two photon imaging of interneurons proximal dendrites.

(A) Average image of a VIP expressing CA1 stratum oriens neuron with dendritic ROIs (coloured squares) and soma border ROI (black), scale bar: 20 μm. (B) Calcium fluorescent trace for color-coded ROIs. (C) Scatter plot of Ca2+ transient peak amplitude for ROI #1 (x axis) and ROI #2 (y axis), the colour code corresponds to the value of the soma border ROI. Grey dashed lines indicate minimal detection levels. (D) Distribution for the smallest (n = 40) and biggest (n = 46) detected Ca2+ transients. Grey dashed line indicates median detection levels across 6 dendrites.