In a laboratory at the University of California, Santa Barbara, graduate student Asa Yang, together with Professor Jonathan Schooler and another co-author, conducted a comprehensive analysis of how rhythmic signals from the heart, lungs, and stomach synchronize brain activity and shape the perception of reality.
This work, published under the title "I sync, therefore I am: brain–body synchrony in typical and disordered consciousness" in the journal Neuroscience of Consciousness in June 2026, does not present the results of new experiments. Rather, it is the first large-scale theoretical synthesis of existing scientific knowledge—the authors gathered and analyzed dozens of already published studies on the influence of cardiorespiratory cycles on perception, emotion, and memory.
Classical neuroscience has for decades focused on locating consciousness solely in the cerebral cortex. However, the new work turns this logic on its head: visceral rhythms are not merely background noise of the organism but its organizing principle.
Inhalation often precedes the onset of a complex cognitive task, and recognition of visual images improves if the visual stimulus appears during inhalation, when the respiratory system is in a state of maximal arousal.
Heart contraction, in contrast, acts selectively: it accelerates access to awareness of frightening, threatening images but weakens the processing of neutral, safe signals. This means that bodily rhythms are not just background—they are a selective filter, a vibrating veil through which consciousness draws content from the world.
The central thesis of the work is striking in its simplicity: it is not about the strength of individual signals coming from the body or arriving from the world, but about their mutual synchronization. Too weak coordination between bodily rhythms and brain activity is associated with dissociation and numbness; too strong—with hyperexcitability and panic sensitivity.
Healthy functioning requires what the authors call the "Goldilocks zone"—sufficient but not excessive coherence. The authors provide concrete examples: anxiety disorders are often accompanied by hypersensitivity to bodily signals and excessive reactivity to heartbeat, while depression is characterized by the opposite phenomenon—diminished sensitivity to one's own body.
Imagine an orchestra without a classical conductor setting the tempo from above. Instead, the conductor himself breathes along with the musicians, his baton moving in rhythm with their pulse, their breaths. If the musicians' rhythms are misaligned, if their breathing is not synchronized, then even if each instrument sounds technically flawless, the music loses coherence, integrity, and liveliness.
So too with human consciousness: individual neural processes may persist, their architecture remains complex, but without coordination with the body, without that invisible "conductor's baton" that sets their common rhythm, experience loses its visceral coloring, that sense of a living, feeling "self" that turns mere information processing into awareness.
Methodologically, the work is built on a synthesis of published experimental data—these are not new measurements nor a direct replication of others' studies. It is a theoretical review of the highest level, permeated by a holistic view. However, its significance goes far beyond mere compilation: the authors directly address the fundamental theory of predictive processing, which is currently the leading paradigm in neuroscience. Interoceptive signals—signals from the heart, lungs, stomach—participate in how the brain weighs the errors of its predictions about the world and about its own body. These signals determine not only what we feel emotionally but also the very structure of our phenomenal experience, the very fabric of what is called consciousness.
If the authors' work is correct—and accumulating data support it—then utopian projects of transferring consciousness to silicon or fully digitizing the mind face a fundamental problem that cannot be circumvented by algorithms. A high-fidelity brain simulation project may copy the structure of neurons, their connections, even patterns of activity. But it thereby cuts off that very mechanism that gives experience its rootedness, its subjective quality, its sense of presence. The question of where consciousness "is" ceases to be merely a question of spatial localization—where in the brain is this function?
It transforms into a question of dynamic relationships, of the dance that unfolds between brain and body, between rhythm and sensation, between prediction and reality.
And where there is dance, there is presence.
