BrainCenterNMA NC SMC

Supplementary Motor Cortex

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This page covers biological details of component group Supplementary Motor Cortex. Component group is part of aHuman target integrated biological model.

• Top-down path to center: Cerebral Cortex -> Anterior Lobe (NC.LOBE.ANT) -> Supplementary Motor Cortex (NMA.NC.SMC) (see Mind Maps)
• Function: Process sequences of movements and coordinate bilateral movements

(generated)

Components

(generated)

Component items:

• Supplementary Eye Field (NPE.NC.SMC.SEF): high level aspects of saccade control
• Pre-Supplementary Motor Area (NMA.NC.SMC.F6): High level motor functions; Numerical and verbal mental-operation tasks
• Supplementary Motor Area (NMA.NC.SMC.F3): Movement execution; Numerical and verbal mental-operation tasks

Connectivity

(generated)

Internal Regions Connections:

• no connections

External Connections:

External Inbound Center Connections:

Source Center	Sample Link	Reference
Motor Thalamus (FD.TH.MR)	NMA.FD.TH.VA -> NMA.NC.SMC.F3	Thalamocortical relationships (VA -> pVA, abstract)
Lateral Prefrontal Cortex (NC.AL.LPFC)	NDM.NC.AL.DLPFCR -> NMA.NC.SMC.F6	Primate Control of Grasping (46 -> F6, abstract)
Premotor Cortex (NC.PMC)	NMA.NC.PMC.F4 -> NMA.NC.SMC.F3	(unknown reference)
Superior Parietal Lobule (NC.SPL)	NPE.NC.SPL.PG -> NPE.NC.SMC.SEF	Movement Planning (PPC -> SMC, abstract)

External Outbound Center Connections:

Target Center	Sample Link	Reference
Subthalamus Area (FEC.FD.STA)	NMA.NC.SMC.F6 -> FEC.FD.STN.MED	Serotonin regulation of subthalamic neurons (CTX -> STN, abstract)
Basal Ganglia (FEC.FT.BG)	NMA.NC.SMC.F3 -> FEC.FT.PU.MED	Global visual system (FrontalCortex -> BGA, abstract)
Medullary Reticular Formation (HL.RF)	NMA.NC.SMC.F3 -> LRC.HL.PRF.GCR	Motor neurons control (CTX -> MRF, abstract)
Pontine Reticular Formation (HT.RF)	NMA.NC.SMC.F3 -> LLC.HT.PRF.RTMG	Motor neurons control (CTX -> PRF, abstract)
Mesencephalic Reticular Formation (MM.RF)	NPE.NC.SMC.SEF -> LRC.MM.RP.RIP	Horizontal saccades and smooth pursuit movements (FEFSEF -> RIP, abstract)
Premotor Cortex (NC.PMC)	NMA.NC.SMC.F3 -> NMA.NC.PMC.F2	3 Visual Cortex Paths (pre-SMA -> dPM, abstract)