The Ghost‑Brush Installation: A Case-Centered Primer on Psychological Contagion Effects

Abstract

An official‑looking cemetery sign paired with a nearby shoe brush—an art installation playfully warning visitors not to “give ghosts a free ride”—offers a compact, real‑world prompt that vividly demonstrates the recently developed Cascading‑Resonance Model (CRM) of psychological contagion, the process by which thoughts or behaviors can amplify and spread across people like a “virus.” This novel framework synthesizes emotional, cognitive, and behavioral mechanisms into a three-layer process: (a) input (suggestibility, expectancy priors, ritual affordance), (b) synchronization (attention convergence, mimicry/entrainment, social appraisal), and (c) scaling (prestige cueing, network feedback, and threshold dynamics). By mapping the features of this art installation against the CRM’s nine core mechanisms, we illustrate how contagion effects in paranormal-related contexts can emerge and intensify without invoking transmissible supernatural agents. This conceptual exercise thus offers parapsychologists and amateur  investigators a mechanism-rich alternative to metaphysical interpretations, showing that clustered or transient perceptions of anomalous phenomena often reflects cascading resonance rather than evidence of external forces.