Lateral ventricle

In the volumetric brain

The Territory

Structure. The lateral ventricle is the C-shaped CSF cavity inside each hemisphere — frontal horn in the frontal lobe, body along the parietal lobe's medial floor, atrium (trigone) with its choroid plexus glomus, occipital horn, and the temporal horn curving into the medial lobe toward the hippocampus; the septum pellucidum hangs between the paired frontal horns.

Function. CSF's hemispheric cistern: its choroid plexus secretes most cerebrospinal fluid, which cushions the brain, clears metabolites along the glymphatic outflow, and whose obstruction (at the foramina of Monro especially) builds the obstructive hydrocephalus of colloid cysts.

The Levers — graded instruments & the levers to come

Behaviour · Action · Thought — the tagged profile

The Network — what fires with this region

Papers on disk — 255 full texts

The Evidence — Neurosynth studies (899)

The Evidence — NeuroQuery studies (883)

The Exploration Guide

*Frontal lobe · Mai atlas of record · 899 studies · 158 papers on disk*

The lateral ventricle is the C-shaped CSF cavity arched inside each hemisphere — frontal horn, body, atrium with its choroid plexus, occipital and temporal horns — secreting most of the brain's cerebrospinal fluid and cushioning everything around it.

The Territory

The lateral ventricle is the C-shaped CSF cavity inside each hemisphere — frontal horn in the frontal lobe, body along the parietal lobe's medial floor, atrium (trigone) with its choroid plexus glomus, occipital horn, and the temporal horn curving into the medial lobe toward the hippocampus; the septum pellucidum hangs between the paired frontal horns.

*— {'source': 'Naidich, Duvernoy, Delman, Sorensen, Kollias & Haacke', 'work': "Duvernoy's Atlas of the Human Brain Stem and Cerebellum: High-Field MRI, Springer", 'kind': 'atlas', 'locator': 'ventricular system'}*

What It Does

CSF's hemispheric cistern: its choroid plexus secretes most cerebrospinal fluid, which cushions the brain, clears metabolites along the glymphatic outflow, and whose obstruction (at the foramina of Monro especially) builds the obstructive hydrocephalus of colloid cysts.

The functional record: CSF's hemispheric cistern — secretion, cushioning, glymphatic metabolite clearance, and the hydrocephalus story when the outflow obstructs. Its decoded profile is the anatomy around it — caudate (the ventricle indents the caudate's body), thalamus, motor terms from the nearby corticospinal tracts. No graded instrument is assigned — a cistern's dossier is its neighbours' and its pressure's.

*— {'source': 'Josephine C. Moore', 'work': 'Brain Atlas and Functional Systems', 'kind': 'atlas', 'locator': 'ventricular system and CSF'}*

The Network

Thalamus (824+587 shared studies), intraparietal sulcus (525), anterior cingulate (508), putamen (478) — the structures the C-shape wraps.

Co-activation partners of record: Thalamus:824, Thalamus:587, Intraparietal sulcus:525, Cingulate gyrus, anterior:508, Putamen:478, Globus pallidus, external segment:449, Supplementary motor area:440, Amygdala:438.

When It Fails

Hydrocephalus — obstructive at the foramina, communicating along the system — plus the ventricular enlargement that marks white-matter loss on every scan. The ventricle's pathology is the brain's plumbing made visible.

The Evidence

• Human amygdala activation during conditioned fear acquisition and extinctio (1998) — 10.1016/S0896-6273(00)80475-4
• Functional MRI studies of spatial and nonspatial working memory. (1998) — 10.1016/S0926-6410(98)00004-4
• A specific role for the thalamus in mediating the interaction of attention (1998)
• Physiological characteristics of capacity constraints in working memory as (1999) — 10.1093/cercor/9.1.20
• An fMRI study of Stroop word-color interference: evidence for cingulate sub (1999) — 10.1016/S0006-3223(99)00056-6
• Cortical activity in precision- versus power-grip tasks: an fMRI study. (2000)

899 studies total touch this region in the Neurosynth corpus of record; the full literature lives beside this dossier.

The Levers

• No graded instrument touches this region yet — its lever candidates are named in the tagged profile; the grading is the campaign to come.

Candidate levers (Neurosynth-decoded terms — pain(interoception), reward(method-other), task(method-other), caudate(anatomy-reference), motor(action-motor), semantic(method-other), thalamus(method-other), wm(method-other) …) are the foundation for the thousands of instruments to come; they are ungraded by law.

Explore Further

Thalamus:824, Thalamus:587, Intraparietal sulcus:525, Cingulate gyrus, anterior:508 — each name is a dossier stop in this explorer.

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