PTSD as Prediction-Gain Locking: A Precision-Weighted Model of Annihilation Dread and Its Modulation

Abstract Post-traumatic stress disorder (PTSD) is commonly conceptualized as a fear-based memory disorder characterized by hyperarousal, intrusive recollections, and avoidance. However, this framing fails to adequately explain the hallmark subjective experience reported by many individuals with PTSD: a pervasive sense of imminent annihilation or existential dread that persists independent of immediate threat. In this paper, we propose a theoretical reframing of PTSD as a disorder of prediction-gain locking, in which survival-threat priors acquire abnormally high precision (gain) and dominate perceptual, interoceptive, and temporal processing. Using nicotine’s reliably reported transient dampening of annihilation dread as a diagnostic probe rather than a treatment endorsement, we examine how modulation of cholinergic and attentional systems reveals key control parameters underlying PTSD phenomenology. We argue that PTSD is best understood not as excessive fear, but as premature certainty of non-continuation, driven by impaired cortical arbitration, altered interoceptive weighting, and collapse of temporal depth. This framework integrates findings across neuroscience, cognitive science, and phenomenology, and suggests new theoretical directions for non-addictive, precision-targeted interventions. Keywords: PTSD, predictive processing, precision weighting, annihilation dread, nicotine, cholinergic modulation, temporal perception **I'm not paid for this, I am someone who has immensely suffered from this illness. If there's one thing I would like to help eradicate, it's the suffering related to PTSD. So, if you enjoy my work, consider checking of some of my books on Amazon! https://www.amazon.com/author/nschoff1 Thank you!**