What We Know Currently about Mirror Neurons J.M. Kilner, R.N. Lemon  Current Biology  Volume 23, Issue 23, Pages R1057-R1062 (December 2013) DOI: 10.1016/j.cub.2013.10.051 Copyright © 2013 Elsevier Ltd Terms and Conditions

Figure 1 Number of mirror neurons recorded in areas F5 and in the IPL. (A) The percentage of mirror neurons as a function of publication year for studies reporting mirror neurons in F5 when observing hand actions. The black line shows the line of best fit. (B) The percentage of mirror neurons in premotor area F5 and in the inferior parietal lobule (IPL). The average percentage of mirror neurons for each region is shown in black and the percentage of total mirror neurons is shown in grey with the total number of mirror neurons and neurons recorded given above. Current Biology 2013 23, R1057-R1062DOI: (10.1016/j.cub.2013.10.051) Copyright © 2013 Elsevier Ltd Terms and Conditions