Despite the fact that 70% to 90% of autistic individuals live with sensory challenges, the scientific understanding remains fragmented.
The Big Picture: Sensory hypersensitivity, particularly in Autism, is not a deficit to be corrected, but rather a profound state of heightened awareness resulting from a brain’s intake system struggling with an environment not suited to its sensitivity. It stems from a disruption of neurological homeostasis, not from “behaviors” that require modification.
Study Type: Systematic Review (authors analyzed 29 studies)
Key Findings:
- Lifelong: Sensory hypersensitivity is a stable, lifelong trait, but the way the brain manages it changes over time
- Persistent Alertness: Due to reduced neural adaptation, the brain continues to react to a repetitive stimulus as if it were brand new each time, preventing the individual from “tuning out” the environment.
- The Environment: By creating environments that prioritize “regulating stimuli,” the “metabolic cost” of sensory processing is reduced. This allows people to divert energy from basic biological survival to higher-order cognitive tasks and social engagement.
Access Status: Free (Published in Frontiers in Psychiatry).
Direct Link: Light and sound hypersensitivity in autism spectrum disorder: a systematic review focusing on age and gender bias
Adult Autism Insights 