Figure 3.

Three examples of multiunit responses (A–C) with mirror neuron properties under observation and execution conditions in the ventrolateral frontal cortex. Rasters and peristimulus time histograms were aligned to the touch of food at time = 0. The bin width for the peristimulus time histogram was 100 ms. The left (right) column indicated the multiunit responses when an experimenter grasped food from the left (right) side of the animal. The first to fourth rows indicate the multiunit responses when an experimenter grasped (1) a piece of banana with his/her hand, (2) a piece of bun with his/her hand, (3) a piece of banana with a pair of forceps, and (4) he/she mimed to reach and grasp as if there was a piece of food, respectively. The bottom indicates the multiunit responses when the animal itself grasped a piece of banana or bun. The responses in the shaded area were used for statistical analysis. ^*p < 0.05/8 under observation condition, p < 0.05 under execution condition (paired-t test).