Sensory Processing Sensitivity
An innate, biologically based trait where the nervous system processes stimuli more deeply and reacts more intensely to subtle environmental changes, leading to heightened awareness and susceptibility to overstimulation.
Sensory Processing Sensitivity (SPS) is an innate, biologically based trait characterized by deeper cognitive processing of stimuli, heightened awareness of environmental subtleties, and increased emotional reactivity. It involves a more sensitive nervous system that responds strongly to both positive and negative inputs, leading to greater susceptibility to overstimulation in complex environments.
What this means in real life
A child with this trait might notice the tag in their shirt immediately and find it unbearably itchy, while also being the first to spot a friend's sad expression across a crowded room—picking up on emotional cues others miss.
What it isn’t
This is not a disorder, disability, or mental health condition requiring treatment. It is a normal personality variation, like introversion, that describes how someone's nervous system processes information—not a deficit or pathology.
Commonly misused online
Social media often conflates this trait with anxiety, autism, or ADHD, or uses it as a catch-all label for anyone who dislikes loud noises or bright lights, ignoring the trait's broader cognitive and emotional dimensions.
Based on 1 reference source, including primary sources. Last verified July 12, 2026.