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. Author manuscript; available in PMC: 2010 Mar 12.
Published in final edited form as: J Neurosurg. 2009 Jun;110(6):1304–1316. doi: 10.3171/2008.10.JNS08466

Fig. 4.

Fig. 4

Division of the responsive units by brain regions. A: Percentages of units monotonically related to speed and units selective to direction in each recorded frontal lobe region. B: Units selective to both speed and direction. The bars present the division of recorded units in each brain region into those monotonically related to speed, selective to direction, and speed-direction units. OF = OFC; pSMA = pre-SMA.