Ignoring and Exploring: Nervous System Engagement Beyond Fight, Flight, and Relaxation

Fight, flight, and relaxation describe bodily mobilisation and recovery but leave open how attention is selectively withheld or invested in discovery. This article examines ignoring and exploring as two modes of engagement whose neural and bodily organisation requires separate analysis. Ignoring reduces processing of particular information; exploring gathers information about something incompletely known. Evidence from distractor-suppression research indicates that ignoring is an organised, often learned and sometimes anticipatory form of neural selection. Research on curiosity, exploratory choice, and orienting relates exploration to motivated learning and arousal regulation, and shows that cardiac responses unfold in stages that distinguish information intake from preparation for action. The article separates attentional investment in an input from bodily mobilisation, which permits relaxed exploration, mobilised investigation, ignoring at ease, and ignoring under exertion. It distinguishes three ways of letting something pass (sensory filtering, nonreactivity to a noticed experience, and effortful suppression) that differ in what is recognised and in their bodily costs. Quiet readiness is defined in signal-detection terms as reduced interference from irrelevant inputs, preserved sensitivity to inputs whose relevance changes, a response criterion near its optimum, and bodily cost no greater than the task requires. Three failure profiles follow: rigid filtering (an overly conservative criterion), anxious vigilance (an overly liberal criterion at high cost), and distractible ease (weak suppression). Five hypotheses, each paired with a rival, are assigned to three staged studies. Implications for the M⁵ model of mindfulness are outlined. The framework is an agenda for testing, not a taxonomy of nervous-system states.