How Does DSM‑5 Define Sensory Issues in Autism?

PostedNovember 14, 2025

UpdatedNovember 14, 2025

ByMy Patient Advice

Author: Lucia Alvarez, MSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

Sensory differences are often one of the earliest signs noticed by families and educators when a child is developing differently. The sensory issues in DSM‑5 autism classification formally recognises these sensory experiences as part of the diagnostic process for autism spectrum disorder. By including sensory responses in its framework, the DSM‑5 has helped shift understanding toward a more comprehensive and compassionate view of autistic traits.

Understanding Sensory Issues in DSM‑5

In the DSM‑5, sensory issues are listed as one of the possible features under the domain of restricted and repetitive behaviours. These differences relate to how individuals respond to sensory input, such as sounds, lights, textures, tastes or smells.

Key examples of sensory processing challenges include:

Over-sensitivity (hypersensitivity)

This might involve strong reactions to bright lights, loud noises or certain clothing textures. These reactions can lead to avoidance behaviours or emotional distress.

Under-sensitivity (hyposensitivity)

Some individuals seek extra sensory input, such as touching objects repeatedly, enjoying strong flavours or not noticing pain or temperature extremes.

These diagnostic features are not present in every individual with autism, but when they do occur, they provide meaningful insight into everyday behaviours and challenges.

Why It Matters

By recognising sensory issues in DSM‑5 autism criteria, it becomes clear that these sensory differences are not merely side effects but core components of autism traits. This helps ensure more accurate diagnoses and better-informed support strategies.

For professional guidance tailored to sensory profiles, visit providers like Autism Detect for consultation.

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Autism Diagnostic Criteria (DSM-5, ICD-11).

Lucia Alvarez, MSc

Author

Lucia Alvarez is a clinical psychologist with a Master’s in Clinical Psychology and extensive experience providing evidence-based therapy and psychological assessment to children, adolescents, and adults. Skilled in CBT, DBT, and other therapeutic interventions, she has worked in hospital, community, and residential care settings. Her expertise includes grief counseling, anxiety management, and resilience-building, with a strong focus on creating safe, supportive environments to improve mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the author's privacy.

Dr. Rebecca Fernandez, MBBS

Reviewer

Dr. Rebecca Fernandez is a UK-trained physician with an MBBS and experience in general surgery, cardiology, internal medicine, gynecology, intensive care, and emergency medicine. She has managed critically ill patients, stabilised acute trauma cases, and provided comprehensive inpatient and outpatient care. In psychiatry, Dr. Fernandez has worked with psychotic, mood, anxiety, and substance use disorders, applying evidence-based approaches such as CBT, ACT, and mindfulness-based therapies. Her skills span patient assessment, treatment planning, and the integration of digital health solutions to support mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the reviewer's privacy.