BrainRegionLRC MM SC INT
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Intermediate Superior Colliculus
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This page covers biological details of component Intermediate 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) -> Intermediate Superior Colliculus (LRC.MM.SC.INT) (see Mind Maps)
- Type: nucleus
- Quality: L0
- Brain area: Lower Brain - Motor Reflex Area (LRC)
- Area circuit: Multisensory Orienting Reflexes (LRM)
- Role: processor.automatic
- Function: Sensimotor integration for orienting
- Notes to function:
- Receive GABA from SNpr to gate integration
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Components
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Component items:
- Stratum Griseum Intermediale, Lamina IV (VBA.MM.SC.SGI)
- Stratum Album Intermediale, Lamina V (VBA.MM.SC.SAI)
Connectivity
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Inbound Region Connections:
| Source Area | Source Region | Source Name | Type | Role | Reference |
| FEC | FEC.FT.SNR.DL | Substantia Nigra Pars Reticulata Dorsolateral | inhibitory-gaba | uncertain | Global visual system (SNr -> SCi, abstract) |
| FEC.FT.SNR.VL | Substantia Nigra Pars Reticulata Ventrolateral | inhibitory-gaba | uncertain | Saccadic Vision (BG -> SCi, abstract) | |
| FEC.HT.TG.IPD | Interpeduncular Nucleus | modulatory-ach | uncertain | (unknown reference) | |
| LLC | LLC.HT.BPN | Basilar Pontine Nuclei | excitatory-glu | uncertain | (unknown reference) |
| LLC.HT.CR.EN | Emboliform Nucleus | excitatory-glu | uncertain | (unknown reference) | |
| LMC | LMC.HT.TG.PPN | Pedunculopontine Tegmental Nuclei | excitatory-glu | uncertain | Geniculate and Extyrageniculate Paths (PPN -> SC, abstract) |
| LPC | LPC.HL.CU | Cuneate Nucleus | excitatory-glu | uncertain | (unknown reference) |
| LPC.HL.GR | Gracile Nucleus | excitatory-glu | uncertain | (unknown reference) | |
| LPC.HL.TGS.STR | Spinal Trigeminal Nucleus | excitatory-glu | uncertain | (unknown reference) | |
| LRC | LRC.MM.EIC | External Nucleus of Inferior Colliculus | excitatory-glu | uncertain | Five Parallel Auditory Pathways (ICx -> SC, abstract) |
| LRC.MM.SC.SUP | Superficial Superior Colliculus | excitatory-glu | uncertain | Global visual system (SCs -> SCi, abstract) | |
| NPE | NPE.NC.PMC.AFEF | Anterior Frontal Eye Field | excitatory-glu | uncertain | Summary of eye movement control (FEF -> SC, abstract) |
Outbound Region Connections:
| Target Area | Target Region | Target Name | Type | Role | Reference |
| FMM | FMM.FD.TH.AD | Anterodorsal Nucleus | excitatory-glu | uncertain | Global visual system (SCi -> ATH, abstract) |
| LLC | LLC.HT.PRF.RTMG | Pontine Reticulotegmental Nucleus | excitatory-glu | uncertain | Geniculate and Extyrageniculate Paths (SC -> RF, abstract) |
| LRC | LRC.MM.SC.DEEP | Deep Superior Colliculus | excitatory-glu | uncertain | Global visual system (SCs -> SCi, abstract) |
| NCP | NCP.FD.TH.LI | Limitans Nucleus of Thalamus | excitatory-glu | uncertain | Saccadic Vision (SCi -> Thalamus, abstract) |
| NMA | NMA.FD.TH.VA | Ventral Anterior Nucleus | excitatory-glu | uncertain | Saccadic Vision (SCi -> Thalamus, abstract) |
| NSA | NSA.FD.TH.SG | Suprageniculate Nucleus of Thalamus | excitatory-glu | uncertain | Saccadic Vision (SCi -> Thalamus, abstract) |
Thirdparty Circuits
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- Visual-Auditory Interactions in Tectum - see Reference (CP.VISUAL-AUDITORY-INTERACTIONS)
AC=Primary Auditory Cortex,NSA.NC.TTG.A1 AM=Amygdala,FAM.FT.AM CN=Cochlear Nucleus,LPC.HL.COCH (see Myelencephalic Sensory Nuclei) IC=Inferior Colliculus,ABA.MM.IC (see Reflexes Nuclei of Midbrain Mesencephalon) MGB=Medial Geniculate Body,NSA.FD.TH.MGB OC=Superior Olivary Complex,LPC.MM.SOC PM=Premotor Cortex,NC.PMC SC=Superior Colliculus,MM.SC (see Reflexes Nuclei of Midbrain Mesencephalon)
- Saccadic Vision - see Reference (CP.SACCADIC-VISION)
BG=Basal Ganglia,FEC.FT.BG CN=Caudate Nucleus,FEC.FT.CN (see Basal Ganglia) CR=Cerebellum,LLC.HT.CR (see Cerebellar Complex) FrontalCortex=Anterior Lobe,NC.LOBE.ANT GPe=Globus Pallidus External,FEC.FT.GPE (see Basal Ganglia) LGN=Lateral Geniculate Nucleus,NSA.FD.LGN LIP=Lateral Intraparietal Sulcus,NPE.NC.IPS.LIP RF=Pontine Reticular Formation,HT.RF Retina=Retinal Nucleus,LPC.FD.RT SCi=Superior Colliculus,MM.SC (see Reflexes Nuclei of Midbrain Mesencephalon) SCs=Superior Colliculus,MM.SC (see Reflexes Nuclei of Midbrain Mesencephalon) SNpr=Substantia Nigra Pars Reticulata Dorsolateral,FEC.FT.SNR.DL STN=Subthalamic Nucleus,FEC.FD.STN (see Subthalamus Area) Thalamus=Thalamus,FD.TH VisualCortex=Occipital Lobe,NC.LOBE.OCC
- Global visual system - see Reference (CP.GLOBAL-VISUAL-SYSTEM)
ATH=Anterior Nucleus of Thalamus,FD.TH.AN (see Cognitive Thalamus) BGA=Basal Ganglia,FEC.FT.BG FrontalCortex=Anterior Lobe,NC.LOBE.ANT LGN=Lateral Geniculate Nucleus,NSA.FD.LGN OPN=Oculomotor Nucleus,LPC.MM.OCN ParietalCortex=Parietal Lobe,NC.LOBE.PAR Pulvinar=Pulvinar,FD.PV (see Sensory Thalamus) RF=Pontine Reticular Formation,HT.RF Retina=Retinal Nucleus,LPC.FD.RT SCi=Superior Colliculus,MM.SC (see Reflexes Nuclei of Midbrain Mesencephalon) SCs=Superior Colliculus,MM.SC (see Reflexes Nuclei of Midbrain Mesencephalon) SNc=Substantia Nigra Pars Compacta Lateral,FEC.FT.SNC.LT SNr=Substantia Nigra Pars Reticulata Dorsolateral,FEC.FT.SNR.DL SpinalCord=Lamina IX,SC.VH.L9 (see Anterior/Ventral Horn) Striatum=Striatum,FEC.FT.ST (see Basal Ganglia) VisualCortex=Occipital Lobe,NC.LOBE.OCC
- Geniculate and Extyrageniculate Paths - see Reference (CP.GENICULATE-PATHS)
LGN=Lateral Geniculate Nucleus,NSA.FD.LGN PPN=Pedunculopontine Tegmental Nuclei,LMC.HT.TG.PPN RF=Pontine Reticular Formation,HT.RF Retina=Retinal Nucleus,LPC.FD.RT SC=Superior Colliculus,MM.SC (see Reflexes Nuclei of Midbrain Mesencephalon) VC=Occipital Lobe,NC.LOBE.OCC
References
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