Skip to main content
. Author manuscript; available in PMC: 2010 Apr 24.
Published in final edited form as: Exp Brain Res. 2008 Jun 14;189(4):485–496. doi: 10.1007/s00221-008-1444-3

Figure 9.

Figure 9

Summary diagram indicating the proposed relationship between the cMRF and gaze control centers. The eye control channel (continuous lines) begins in the SC’s upper sublamina of SGI (uSGI), which sends axons to lateral cMRF, ipsilaterally, and the PPRF, contralaterally. We have shown that the lateral cMRF projects more heavily upon uSGI, and also projects to the PPRF (unpublished data). The head control channel (dashed lines) begins in the lower sublamina of SGI (lSGI), which sends axons to the medial cMRF, ipsilaterally, and cervical spinal cord, contralaterally. The medial cMRF projects more heavily upon lSGI, and also projects to the ipsilateral cervical spinal cord. The present data do not reveal whether the tectal projections directly contact reticuloreticular and reticulospinal neurons. There does not appear to be any sublaminar preference for the crossed pathway.