Several studies have demonstrated that the sensorimotor areas were associated with kinesthetic perception. Specific contrasts were shown that the perception of an illusory movement in the right wrist joint was specifically related to activation in the left premotor, sensorimotor, and parietal cortices as well as in bilateral supplementary motor and cingulate motor areas. In previous studies, cerebral activity during kinesthetic perception was demonstrated, but the inhibitory or facilitatory effect of those cerebral activity has not been clarified. In the current study, we had an oppotunity to record the cerebral activity directly in a patient with epilepsy, so this research was done to show the cerebral activity in the sensorimotor areas associated with kinesthetic perception. A 14-year-old male with intractable epilepsy participated in this study. Informed consent for study participation was obtained from the patient and his parents before the experimental procedure was performed, as required by the Helsinki Declaration. The patient underwent intracranial electrodes implantation to identify the epileptogenic zone. The following study was carried out 10 days after the implantation of the electrodes. During the study, no epileptiform discharge was observed by an epileptologist on the electroencephalogram (EEG) recorded from the intracranial electrodes. Cerebral activity was recorded during the performance of 5 kinds of task, including resting. The main task was to apply the tendon vibration to the wrist joint flexors and/or extensors, to induce a kinesthetic illusory feeling. To induce an illusory feeling of moving in the extensional direction, we stimulated the flexors with 50-Hz (F50 condition) or 100-Hz (F100 condition) vibration. We also induced the illusion of flexion by stimulating the flexors with 100-Hz vibration and the extensors with 50-Hz vibration (F100-E50 condition). On the other hand, there was no illusory feeling when the 50-Hz or 100-Hz vibration was applied to both flexors and extensors (Non-50, Non-100). Negative peak values for the channel of the primary motor area depended on the amount of differences in vibration frequency between flexors and extensors. The highest peak value was recorded during the F100 condition (-82.1 μV), and the lowest value was observed under the Non-100 condition (-45.2 μV). Time frequency analysis revealed that signals around 10 Hz increased after the beginning of vibration in the channel of the primary motor cortex, while the signals around 10 Hz were suppressed in the channel of the primary somatosensory cortex. An EEG signal around 10 Hz indicated a different trend between the channels for the motor cortex and the somatosensory cortex. The cerebral activity reported in this study was recorded from only one patient; however, the recordings provided very unusual and noteworthy data.