Same cell as above. The dendritic tree is now captured by the data acquisition camera during the actual voltage imaging sweep. Data acquisition camera is characterized by low resolution (80 x 80 pixels) but fast sampling rate (full frame per 0.37 milliseconds). The morphology of the living cell is projected onto the 80 x 80 array of optical detectors (pixels). By selecting a pixel from the array one can select the recording site. In this example, we chose one recording site near the soma (yellow), in the proximal basal dendrite (blue), in the distal basal dendrite (clay), at the oblique branch point (turquoise) and in the apical dendrite (red). Recordings are performed simultaneously from multiple locations, which provides a unique view in the signal initiation and propagation within the dendritic tree.