BrainRegionLRC MM SC SUP

Superficial Superior Colliculus

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This page covers biological details of component Superficial Superior Colliculus. Region is part of aHuman target integrated biological model.

• Top-down path to region: Midbrain Mesencephalon -> Reflexes Nuclei of Midbrain Mesencephalon (MM.REF) -> Visual Reflexes Nuclei of Midbrain Mesencephalon (MM.REF.VIS) -> Superior Colliculus (MM.SC) -> Superficial Superior Colliculus (LRC.MM.SC.SUP) (see Mind Maps)
• Type: nucleus
• Brain area: Lower Brain - Motor Reflex Area
• Role: relay
• Function: Head and eye attention to visual stimuli
• Notes to function: Receive input primarily from the visual system and show primarily visual responses

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Components

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Component items:

• Stratum Zonale, Lamina I (VBA.MM.SC.SZ)
• Stratum Griseum Supeficiale, Lamina II (VBA.MM.SC.SGZ)
• Stratum Opticum, Lamina III (VBA.MM.SC.SO)

Connectivity

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Inbound Region Connections:

Source Area	Source Region	Source Name	Type	Reference
LPC	LPC.FD.RT	Retina	excitatory-glu	Geniculate and Extyrageniculate Paths (Retina -> SC, abstract)
LRC	LRC.MM.PT.NOT	Nucleus of Optic Tract	excitatory-glu	(unknown reference)
NPE	NPE.NC.IPL.MST	Medial Superior Temporal Area	excitatory-glu	Global visual system (ParietalCortex -> SCi, abstract)
	NPE.NC.IPS.LIP	Lateral Intraparietal Sulcus	excitatory-glu	Summary of eye movement control (PEF -> SC, abstract)
NSA	NSA.NC.OCC.V1	Primary Visual Cortex	excitatory-glu	Global visual system (VisualCortex -> SCs, abstract)
	NSA.NC.OCC.V2TN	Secondary Visual Cortex, Thin Stripe	excitatory-glu	Global visual system (VisualCortex -> SCs, abstract)

Outbound Region Connections:

Target Area	Target Region	Target Name	Type	Reference
LRC	LRC.MM.RP.RIP	Raphe Interpositus Nucleus	excitatory-glu	Horizontal saccades and smooth pursuit movements (SC -> RIP, abstract)
	LRC.MM.SC.INT	Intermediate Superior Colliculus	excitatory-glu	Global visual system (SCs -> SCi, abstract)
NPE	NPE.FD.TH.LP	Lateral Posterior Nucleus of Thalamus	excitatory-glu	Thalamocortical relationships (sLP -> LP, abstract)
NSA	NSA.FD.LGN	Lateral Geniculate Nucleus	excitatory-glu	Global visual system (SCs -> LGN, abstract)
	NSA.FD.TH.IPV	Inferior Pulvinar	excitatory-glu	Global visual system (SCs -> Pulvinar, abstract)
	NSA.FD.TH.LPV	Lateral Pulvinar	excitatory-glu	Global visual system (SCs -> Pulvinar, abstract)

Thirdparty Circuits

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• no circuits defined

References

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• no references defined