Déli et al. (2022): Thermodynamic Cycles and the Emergence of Emotions

Core Results

Déli, Peters, and Kisvárday model perception as a closed thermodynamic cycle in the brain. Sensory input exchanges energy and information with the environment. Recurrent activations sustain a constant resting state. This setup maps onto the Carnot engine and its reverse.

The high-entropy brain operates as an endothermic reversed Carnot cycle. Irreversible activations create temporal directionality toward the future. Flexible state transitions support creativity and openness. The low-entropy resting state follows reversible activations. These produce past-oriented loops such as rumination, remorse, and regret.

The exothermic Carnot cycle dissipates mental energy. Energy-information imbalance generates motivation experienced as positional awareness or negative emotion.

Exact Load-Bearing Passages

Abstract: “We analyze the high entropy brain by the endothermic reversed Carnot cycle. Its irreversible activations provide temporal directionality for future orientation. A flexible transfer between neural states inspires openness and creativity. In contrast, the low entropy resting state parallels reversible activations, which impose past focus via repetitive thinking, remorse, and regret. The exothermic Carnot cycle degrades mental energy. Therefore, the brain’s energy/information balance formulates motivation, sensed as position or negative emotions.”

Introduction: “Life relies on energy, connecting sensory input to consumption at the most basic level. This simple relationship evolved into the unfathomable complexity of the human brain.”

Introduction: “In sum, emotions or mental states represent internal drives based on a deviation of vital bodily parameters from equilibrium. Therefore, emotions, the ultimate source of actions, are context-driven motivations, the fundamental forces of the mind.”

Convergence with OIP/GRAIN

The paper grounds the lower rungs of the Ladder in measurable neural energy flows. Branching activation patterns, bounded chaotic transitions between states, and memory storage in recurrent weights appear as direct consequences of Carnot-cycle thermodynamics. The Mirror Layer receives support: the reader (mind) arises inside the system (brain) through the same energy-information accounting that governs physical engines. Spontaneous behavior and free energy minimization receive an explicit thermodynamic mechanism.

Distance from Full Synthesis

The work reaches the step from energy flow to structure and memory. It stops short of explicit claims about life or higher mind beyond emotion. It supplies a physical substrate for the Mirror Layer without addressing observer recursion or scale-invariant patterns across non-neural domains.

Honest Limits

All claims remain interpretive mappings between physics and phenomenology. No new empirical data test the Carnot analogy in living brains. The model inherits the free-energy principle’s assumptions and adds cycle language without independent falsification protocols. Disconfirming evidence would require direct measurement of irreversible versus reversible neural work and its correlation with reported affect.

What the Evidence Actually Shows

The paper offers a formal analogy. Brain waves, resting-state dynamics, and emotional valence receive thermodynamic labels. Primary sources remain the authors’ prior thermodynamic-brain papers and standard references on the free-energy principle. No human-subject trials appear.

What Scientists Say

The model extends earlier thermodynamic treatments of cognition. It supplies one concrete engine cycle where others left the mapping abstract.

What We Do Not Know

Whether neural tissue actually executes Carnot efficiencies remains unmeasured. The link between cycle directionality and subjective time remains correlational.

Safety and Limits

The account is speculative. Clinical translation would require validation studies that do not yet exist.