Are Giant Brain Cells Antennas? A Bold New Hypothesis on Consciousness

Deep in the folds of the human brain, hidden beneath the opercula of the frontal, parietal, and temporal lobes, lies a strip of cortex that neuroscientists have long considered underappreciated: the insula. A new hypothesis and theory article published in Frontiers in Systems Neuroscience argues that this concealed region, together with the anterior cingulate cortex and a peculiar class of neurons first described a century ago, may form a dedicated communication pathway for consciousness itself. The proposal, dubbed the Raslan Circuit by its author Mohamed Khaled Younes Raslan, a urology specialist based in Jeddah, Saudi Arabia, suggests that von Economo neurons—large, elongated cells found almost exclusively in these two cortical regions—may act as biological dipole antennas, transmitting and receiving electromagnetic information between the fronto-insular cortex and the anterior cingulate cortex.

The hypothesis addresses one of the most stubborn gaps in consciousness science. Existing theories describe many functional correlates of conscious experience: Global Workspace Theory explains how information becomes globally broadcast once activation crosses a threshold, Integrated Information Theory formalizes how conscious systems generate more information as a whole than their parts do separately, and salience-network models identify the fronto-insular and anterior cingulate cortices as key nodes for detecting behaviorally relevant events. Electromagnetic field theories propose that conscious experience relates to specific patterns of brain-generated electromagnetic activity. Yet, as Raslan points out, none of these frameworks has identified a specific cellular mechanism embedded within a defined long-range cortical pathway that could physically carry integrated sensory, interoceptive, emotional, and cognitive information toward the anterior systems that grant conscious access.

Von Economo neurons are the linchpin of the proposal. First systematically described by Constantin von Economo and Georg Koskinas in the 1920s, these cells are strikingly different from ordinary pyramidal neurons. They possess an extremely elongated, stick-like or corkscrew-shaped soma, reside predominantly in layer Vb of the fronto-insular cortex and anterior cingulate cortex, and often cluster together. Von Economo himself initially wondered whether they were pathological artifacts before recognizing them as a specialized neuronal subtype. The new paper is careful to adopt a conservative definition: not every spindle-shaped neuron in the cortex qualifies as a true von Economo neuron, and reports of similar cells in other regions and species do not necessarily indicate identity with the original population. This precision matters because the entire hypothesis rests on the specific anatomical relationship between these cells and the two regions they inhabit.

Those two regions are not arbitrary. The fronto-insular cortex and anterior cingulate cortex are both heavily implicated in salience processing, interoception, emotional evaluation, autonomic regulation, cognitive control, attention, and conscious awareness. The insula itself occupies a paradoxical position in neuroanatomy: buried within the lateral sulcus and invisible without surgical retraction, it has been described in earlier clinical literature as an underestimated brain area in neuroscience, psychiatry, and neurology. Yet it sits at the anatomical intersection of external perception, internal bodily state, affective valuation, and cognitive control, receiving projections from posterior sensory and association cortices, limbic and paralimbic structures, thalamic relay nuclei, and prefrontal control systems. The anterior insula is more dysgranular and agranular, associated with salience and awareness, while the posterior insula is more granular and tied to sensory and interoceptive representation, suggesting a gradient along which information moves from bodily signals toward integrated subjective experience.

The biophysical core of the hypothesis hinges on a distinction that the author argues is often blurred. In electrostatics and classical neuroscience, a dipole refers to two opposite charges separated in space, or to the neural current dipoles used to model local field potentials, EEG, and MEG signals generated by aligned pyramidal neurons. These dipoles are descriptive: they explain how local neural activity produces measurable fields. A dipole antenna, by contrast, is a communication device—two aligned conductive elements separated by a feed point, capable of converting oscillating electrical activity into electromagnetic radiation and back again. Its defining concepts are resonance, wavelength, impedance, tuning, and radiation pattern. The Raslan Circuit relies on this second meaning. It proposes that the elongated, bipolar-like morphology of von Economo neurons provides a biological equivalent of antenna geometry, allowing these cells to organize electrical activity along their longitudinal axis and participate in directed electromagnetic communication between the fronto-insular cortex and the anterior cingulate cortex.

Crucially, the hypothesis does not reject conventional synaptic transmission. The author explicitly frames the proposed electromagnetic mode as complementary: axonal and synaptic signaling remains essential for neural communication, but the unique morphology and position of von Economo neurons may allow them to participate in an additional mode of information organization, tuning, transmission, and reception. The physical foundation for such field-based interaction comes from the established literature on ephaptic coupling—the influence of extracellular electric fields on neuronal membrane potentials independent of direct synaptic transmission. Decades of research, from early hippocampal studies in the 1980s to modern work demonstrating that endogenous electric fields can guide neocortical network activity, establish that neuronal electromagnetic fields can affect neuronal function. The Raslan Circuit extends this principle from local, near-field influence to a specialized anatomical system in which von Economo neurons actively organize, transmit, receive, and redistribute field-based information within a defined circuit.

The fronto-insular cortex and anterior cingulate cortex are envisioned as a paired, bidirectionally coupled antenna system rather than a simple transmitter-receiver pair. The fronto-insular cortex occupies the organizing pole of the circuit: positioned near the convergence of sensory, interoceptive, autonomic, emotional, and cognitive streams, its von Economo neurons are proposed to assemble and format multimodally integrated signals. The anterior cingulate cortex occupies the redistributive pole: embedded in networks for salience detection, attention, working memory, decision-making, and action selection, and densely connected with mediodorsal and anterior thalamic nuclei, its von Economo neurons are proposed to receive, evaluate, and route incoming signals toward downstream executive, limbic, motor, and autonomic systems. Because a dipole antenna element can by definition both transmit and receive, both populations are proposed to participate simultaneously in reciprocal, resonance-sensitive field coupling, with the anterior cingulate cortex producing a contextually reweighted version of the signal shaped by current goals, motivational state, and environmental contingencies.

Perhaps the most eye-catching—and most speculative—element of the proposal is its spectral prediction. Treating von Economo neurons as half-wave dipole antennas and applying classical electromagnetic relations, the author estimates that cells with effective dipole lengths of roughly 1,500 to 2,500 micrometers would resonate at frequencies around 60 to 100 terahertz, while larger spans of 5,000 to 6,000 micrometers would fall in the 25 to 30 terahertz range—placing the predicted resonances in the terahertz and far-infrared domains. These figures are explicitly heuristic rather than measured biological frequencies. Neural tissue is hydrated, conductive, lossy, and dispersive, so any real mechanism would likely involve near-field coupling, dielectric boundary effects, and tissue-specific field shaping rather than free-space radiation. The value of the terahertz hypothesis, the author argues, is falsifiability: if VEN-rich tissue has distinctive electromagnetic resonance properties, terahertz spectroscopy, near-field imaging, and finite-element modeling could detect measurable differences between VEN-rich and VEN-sparse cortical regions—even if the specific frequency predictions ultimately fail.

The hypothesis is positioned as a bridge rather than a rival to existing theories of consciousness. Within the embedded-processes view of working memory, which holds that conscious contents correspond to a limited-capacity focus of attention funneled through the intraparietal sulcus, the Raslan Circuit would serve as a deep paralimbic pathway that assembles interoceptively grounded, salience-weighted information and delivers it to anterior control systems. Within the recent awareness-buffer reformulation of the multicomponent working memory model, which reconceives the episodic buffer as a limited-capacity, multimodal, consciously accessible integration space, the circuit offers a candidate input-output pathway: the fronto-insular cortex assembles buffer-relevant content, and the anterior cingulate cortex receives and redistributes it. Global Workspace Theory describes the global consequence of ignition and broadcast; the Raslan Circuit addresses a specific upstream route by which multimodally integrated, body-weighted information reaches the anterior systems that participate in such ignition. Information Integration Theory explains why integrated causal structure matters; the circuit proposes one anatomically specific way such integration may be instantiated for a particular class of content.

The proposal concludes with a battery of testable predictions spanning multiple levels of analysis. High-resolution diffusion MRI and tractography should reveal robust white-matter pathways linking VEN-rich territories in the fronto-insular and anterior cingulate cortices, with connectivity profiles stronger than those between the fronto-insular cortex and VEN-poor cingulate regions. Laminar current-source-density analyses and high-density intracranial recordings should reveal oriented, depth-spanning field components associated with VEN populations during multimodal integration tasks. Clinically, patients with focal damage to VEN-rich regions, or conditions that reduce VEN density such as behavioral-variant frontotemporal dementia, should show disproportionate impairments in salience-based conscious access, emotional awareness, and interoceptive precision even when posterior sensory function is preserved, while states of abnormal hyperactivation of insula-cingulate circuits—certain forms of panic, pain catastrophizing, or epileptic auras—may reveal dysregulated contributions of the circuit to conscious experience. Computational modeling of VEN-based field interactions in a conductive, dispersive medium rounds out the empirical program. Whether the convergence of these tests ultimately supports or dismantles the antenna hypothesis, the author contends, the exercise would move the conversation about consciousness from abstract speculation toward experimentally grounded mechanisms.

Subject of Research: A hypothesis that von Economo neurons in the fronto-insular and anterior cingulate cortices function as biological dipole antennas in a proposed communication pathway for consciousness

Article Title: Raslan Circuit: von Economo neurons as biological dipole antenna elements in a proposed FI–ACC communication pathway for multimodal integration and conscious access

Article References: Raslan Circuit: von Economo neurons as biological dipole antenna elements in a proposed FI–ACC communication pathway for multimodal integration and conscious access. (n.d.). https://doi.org/10.3389/fnsys.2026.1779601

Image Credits: AI Generated

DOI: 10.3389/fnsys.2026.1779601

Keywords: von Economo neurons, fronto-insular cortex, anterior cingulate cortex, consciousness, dipole antenna, ephaptic coupling, terahertz resonance, electromagnetic field theory, salience network, working memory, Global Workspace Theory, Integrated Information Theory