The Hidden Projection Map of Consciousness: Why the Thalamus and Entorhinal, Relay to Different Parts of the Display-Cortex
BY: OMOLAJA MAKINEE
One of the deepest misunderstandings in modern Behavioural science is the assumption that consciousness emerges uniformly across the cortex through one singular relay architecture.
Under conventional Neuroscience, the cortex is often treated as a unified processing civilisation receiving information through broadly similar neural mechanisms.
But psychextrics proposes something radically different:
The display-cortex is not one uniform screen.
It is a differentiated behavioural theatre receiving projections from two distinct master relay civilisations:
- the Diencephalon (Thalamic relay system),
- and the Siencephalon (Entorhinal relay system).
And most importantly: they do not project to the same cortical territories equally.
This projection asymmetry reveals one of the most important hidden organisational principles in the brain.
1. The Psychextric Reorganisation of the Brain
Psychextrics reconstructs the nervous system through a six-cephalon architecture:
- Myelencephalon — survival vigilance gateway,
- Metencephalon — kinetic stability gateway,
- Mesencephalon — spatial orientation gateway,
- Diencephalon — contextual valuation and meaning construction,
- Siencephalon — signal integration and behavioural continuity,
- Telencephalon — conscious display interface.
Under this framework, the three lower cephalons (Myelencephalon, Metencephalon and Mesencephalon):
- collect,
- stabilise,
- orient,
- and process
raw behavioural traffic from the organism and environment.
But raw behavioural traffic alone is not conscious reality. Before behaviour becomes consciously rendered, it must be:
- sorted,
- prioritised,
- indexed,
- emotionally weighted,
- integrated,
- and packaged.
This labour belongs primarily to the:
- Diencephalon,
- and Siencephalon.
2. The Two Master Relay Civilisations
The Diencephalon and Siencephalon function as the two master relay authorities governing behavioural projection into conscious display.
The Diencephalon
primarily governs:
- contextual urgency,
- salience,
- immediacy,
- attentional priority,
- behavioural relevance,
- and high-fidelity sensory routing.
Its major relay architecture: the Thalamic system.
The Siencephalon
primarily governs:
- behavioural continuity,
- memory indexing,
- emotional familiarity,
- cross-modal association,
- experiential looping,
- and behavioural packaging.
Its major relay architecture: the Entorhinal system.
These systems do not perform identical labour. And because their behavioural responsibilities differ, their cortical projection territories (the Telencephalon) also differ.
3. The Display-Cortex Is Not Uniform
The revised Telencephalon under psychextrics functions as:
- the behavioural rendering screen,
- symbolic display interface,
- and conscious projection theatre.
But different regions of the display-cortex receive different categories of behavioural relay. This is one of the most important discoveries in the psychextric framework.
Projection Map: Thalamic versus Entorhinal Relays
| TELENCEPHALON DISPLAY CORTEX (TARGET NODE) | RELAYED TO BY THE DIENCEPHALON (THALAMUS) | RELAYED TO BY THE SIENCEPHALON (ENTORHINAL) | SYSTEMIC BEHAVIOURAL FUNCTION IN PSYCHEXTRICS |
| Neocortex: Isocortex (Motor, Somatosensory, Visual, and Auditory Displays) | YES | NO | Renders high-fidelity, conscious symbolic sensory data and executes motor behaviour generated by lower stability gateways. |
| Prefrontal Cortex (PFC) (Dorsolateral, Ventromedial, Orbitofrontal) | YES | YES | The ultimate convergence screen where immediate contextual value (Thalamus) and recorded memory index loops (Entorhinal) meet to modulate behaviour. |
| Cingulate Cortex (Anterior and Posterior Cingulate Fields) | YES | YES | Processes error detection, emotional valence monitoring, and structural behavioural shifting. |
| Piriform Cortex (Primary Olfactory Display Screen) | NO | YES | Bypasses the thalamus entirely to map raw chemical values directly to the behavioural rendering screen. |
| Insular Cortex (Insula) (Visceral & Interoceptive Display) | YES | YES | Integrates internal bodily states (relayed via Thalamic midline nuclei) with emotional value tagging (Entorhinal loop). |
4. The Thalamic Monopoly Over High-Fidelity Display
The Thalamus retains near-exclusive governance over the massive primary sensory and motor display territories of the cortex.
These include:
- primary visual displays,
- auditory displays,
- somatosensory displays,
- and motor projection screens.
Why?
Because these regions require:
- high-speed,
- high-fidelity,
- low-distortion
sensory reconstruction.
The Thalamus specialises in:
- precision relay,
- sensory gating,
- attentional prioritisation,
- and contextual immediacy.
The Entorhinal system does not directly project heavily into these primary sensory displays because behavioural continuity and memory integration are not the primary computational demands of these regions.
- The visual cortex must render visual reality precisely.
- The motor cortex must project movement accurately.
- The auditory cortex must reconstruct acoustic detail faithfully.
These are thalamic responsibilities.
Thus: the display-cortex (the Telencephalon) becomes primarily thalamic territory.
5. Why the Entorhinal System Avoids Primary Sensory Displays
This is profoundly important.
The Entorhinal system does not attempt to reconstruct raw sensory reality itself. It governs:
- continuity,
- familiarity,
- indexing,
- emotional association,
- and behavioural integration.
Its labour is not sensory precision. Its labour is behavioural coherence.
This is why the Entorhinal relay system primarily converges upon:
- association cortices,
- paralimbic territories,
- behavioural synthesis screens,
- and integrative display systems.
These include:
- the Prefrontal Cortex,
- Cingulate Cortex,
- and Insular Cortex.
6. The Prefrontal Cortex: The Ultimate Convergence Screen
The Prefrontal Cortex becomes one of the most important convergence territories in psychextrics because it receives projections from both:
- the Thalamic relay,
- and the Entorhinal relay.
This creates a behavioural synthesis theatre where:
- immediate contextual demands,
- emotional weighting,
- behavioural memory,
- predictive modelling,
- and continuity indexing
merge into consciously modulated behaviour.
The Thalamus provides: “What is happening right now?”
The Entorhinal system provides: “What has this meant before?”
Conscious behaviour emerges through the convergence of:
- immediacy,
- and continuity.
7. The Cingulate Cortex: Error and Behavioural Shifting
The Cingulate Cortex also receives strong overlap between:
- thalamic projections,
- and entorhinal looping.
This allows the organism to:
- monitor behavioural conflict,
- detect emotional discrepancy,
- shift behavioural orientation,
- and track internal behavioural tension.
The Cingulate therefore becomes a behavioural adjustment screen where:
- contextual urgency,
- and historical behavioural indexing
continuously negotiate behavioural direction.
8. The Insular Cortex: Internal State Rendering
The Insular Cortex receives:
- visceral bodily information through thalamic relay,
- while simultaneously integrating emotional and familiarity indexing through entorhinal looping.
This creates the conscious experience of:
- bodily discomfort,
- gut feelings,
- interoceptive emotion,
- internal tension,
- and visceral awareness.
The Insula therefore becomes one of the most important hybrid display territories inside the brain.
9. The Piriform Cortex: The Great Exception
The most fascinating exception in the entire projection map is the: Piriform Cortex.
Unlike nearly every major sensory system in the brain, olfaction bypasses the Thalamus almost entirely. This is structurally profound.
The primary olfactory display interacts directly with:
- the Entorhinal gateway,
- the Hippocampal system,
- and the Olfactory–Hippocampal axis.
Why?
Because smell is not merely sensory reconstruction. Smell functions as:
- chemical value detection,
- behavioural familiarity mapping,
- emotional triggering,
- survival relevance coding,
- and instinctive behavioural priming.
Olfaction prioritises behavioural continuity over sensory abstraction.
This explains why smell possesses unusual psychological properties:
- involuntary memory retrieval,
- immediate emotional activation,
- instinctive attraction,
- visceral disgust,
- and sudden familiarity.
Smell enters behavioural continuity before reflective narration fully forms. The organism reacts chemically before consciousness explains why.
10. Why the Projection Divide Matters
Under psychextrics, the projection divide between:
- thalamic relay,
- and entorhinal relay
reveals the hidden architecture of conscious construction itself.
The brain does not project one unified behavioural stream into consciousness. Different relay civilisations govern different categories of behavioural reality.
The Thalamus governs:
- immediacy,
- salience,
- sensory precision,
- motor coordination,
- and contextual urgency.
The Entorhinal system governs:
- continuity,
- familiarity,
- emotional indexing,
- memory association,
- and behavioural coherence.
Consciousness emerges only after these systems project and converge inside the display-cortex.
11. Why Psychology Misunderstood This
Traditional Psychology largely missed this architecture because psychological methods interpreted behaviour from the surface of consciousness downward.
Psychology observed:
- thoughts,
- emotions,
- memories,
- decisions,
- and subjective experience
without structurally mapping the relay systems constructing those experiences beneath awareness.
As a result, consciousness became interpreted as:
- unified,
- self-originating,
- reflective,
- and centrally authored.
But under psychextrics, consciousness is assembled through distributed cephalic governance before awareness becomes visible.
The display-cortex does not generate behaviour independently. It renders:
- thalamically contextualised reality,
- and entorhinally integrated continuity
as one seamless conscious experience.
Conclusion: The Cortex Does Not Think
The greatest inversion introduced by psychextrics may be this:
The cortex does not construct conscious behaviour.
The lower gateways generate behavioural traffic. The Diencephalon contextualises it. The Siencephalon integrates it. The display-cortex renders it.
Consciousness therefore becomes: not the author of behavioural reality, but the reflective theatre in which distributed cephalic governance becomes visible to itself.
Back to: 👇