Author: Beatrice Holloway, MSc | Reviewed by: Dr. Rebecca Fernandez, MBBS
Sameness and repetitive behaviours in autism are closely connected, forming a core part of what professionals assess when diagnosing autism. These behaviours can include a need for routines, repeating words or actions, and avoiding changes in surroundings. Sameness and repetitive behaviours in autism reflect an individual’s deep need for predictability and emotional regulation.
In clinical settings, these traits fall under RRB autism: restricted and repetitive behaviours which are one of the two main criteria for diagnosis. What might seem like quirky preferences, such as insisting on the same route home or using the same phrases repeatedly, can be indicators of deeper restricted behaviours in autism. These behaviours often help individuals manage sensory input or cope with emotional stress. That’s why there’s a strong sameness diagnostic link in formal assessments.
What You Might Notice
Here are some ways these behaviours might appear in everyday life:
Fixed routines
Wanting the same order of activities each day and getting upset if it’s changed.
Verbal repetition
Repeating a phrase like “It’s time for tea” throughout the day for comfort.
Object arrangement
Lining up toys or objects in the exact same pattern repeatedly.
Recognising these behaviours as part of a broader pattern helps with early identification and support planning.
Visit providers like Autism Detect for personal consultations and support in understanding behavioural patterns.
For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Insistence on Sameness.
Beatrice Holloway, MSc
Author
Beatrice Holloway is a clinical psychologist with a Master’s in Clinical Psychology and a BS in Applied Psychology. She specialises in CBT, psychological testing, and applied behaviour therapy, working with children with autism spectrum disorder (ASD), developmental delays, and learning disabilities, as well as adults with bipolar disorder, schizophrenia, anxiety, OCD, and substance use disorders. Holloway creates personalised treatment plans to support emotional regulation, social skills, and academic progress in children, and delivers evidence-based therapy to improve mental health and well-being across all ages.
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.
