Your heart rate actually spikes when an AI lies to you, even if you haven't realized it's lying yet.
April 10, 2026
Original Paper
Jointly Tracing Coupling Mode Transitions in Human-AI Interaction: Semantic and Somatic Signals
SSRN · 6439347
The Takeaway
Our bodies react to AI contradictions in ways our conscious minds might miss. Researchers found that moments when an AI is confidently wrong trigger physiological stress signals that text analysis alone cannot detect.
From the abstract
We present an instrumentation framework for cross-substrate coupling analysis during human-AI dialogue, capturing semantic and somatic signals simultaneously. Earthian-BioSense acquires cardiac autonomic data via chest-strap heart rate monitor; Semantic Climate computes real-time semantic trajectory metrics, building on Morgoulis's (2025) 4D coupling framework. Three naturalistic sessions with large language models reveal distinct coupling signatures. During epistemic rupture, where a model repe