A single vibrissal column in the first somatosensory cortex of the mouse demonstrated with 2-deoxyglucose

Single functional column activated by stimulation of C3 vibrissa was visualized in the mouse somatosensory cortex with 2-deo-xyglucose autoradiography. The column was cylindrical in shape and extended through the entire cortical thickness. The darkest labeling was found in layer IV, over the anatomical C3 vibrissal barrel. The functional column stretched horizontally over parts of adjacent barrels. A zone of low 2-deoxyglucose uptake surrounded the densly labeled area and covered the rest of the postero medial barrel subfield.