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What Does Current Research Say About Literal Thinking in Autism? 

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Updated
ByMy Patient Advice
Author: Hannah Smith, MSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

Many autistic people process language in a clear and concrete way. According to NHS guidance, this literal interpretation means expressions such as “pull your socks up” or “hold your horses” may be taken at face value, leading to confusion or misunderstanding. Literal thinking is not a flaw but a distinct cognitive style that influences how autistic people communicate and make sense of the world. 

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Understanding Literal Thinking 

The National Autistic Society explains that autistic individuals often interpret language literally and may find it hard to understand idioms, jokes, or indirect meanings. This can make social interaction more complex. The NAS encourages clear, specific, and structured communication, which supports understanding and confidence. 

NICE guidance (CG142) advises professionals to use unambiguous and consistent communication when supporting autistic adults. Autistica’s research highlights that many autistic people favour logical and analytical thinking, which can enhance problem-solving but make figurative or abstract language more challenging to interpret. 

Evidence from Research 

Scientific studies confirm that autistic people often process language differently. A 2024 paper in the Journal of Autism and Developmental Disorders found that autistic adults rely more on literal and analytical reasoning, influencing how they interpret and express language. Research published in Frontiers in Psychology found that autistic individuals perform well on factual and concrete language tasks but find metaphors, sarcasm, and implied meaning more difficult to process. 

The World Health Organization’s ICD-11 defines autism as involving persistent differences in communication and conceptual understanding, including challenges with figurative and inferential language. These findings confirm that literal thinking is a central and natural part of autistic cognition. 

Practical Support 

Literal thinking can be supported through clear and direct communication. Families, educators, and employers can help by avoiding ambiguous language and offering concrete examples or written instructions. Using visual aids or structured explanations also supports understanding. Recognising literal thinking as a valid and consistent part of autistic experience can foster inclusion and reduce miscommunication. 

Takeaway 

Literal thinking is a core feature of autism. When communication is clear, specific, and structured, autistic people can engage with greater understanding and confidence. 

If you or someone you support would benefit from early identification or structured autism guidance, visit Autism Detect, a UK-based platform offering professional assessment tools and evidence-informed support for autistic individuals and families. 

Hannah Smith, MSc
Author

Hannah Smith is a clinical psychologist with a Master’s in Clinical Psychology and over three years of experience in behaviour therapy, special education, and inclusive practices. She specialises in Applied Behavior Analysis (ABA), Cognitive Behavioural Therapy (CBT), and inclusive education strategies. Hannah has worked extensively with children and adults with Autism Spectrum Disorder (ASD), ADHD, Down syndrome, and intellectual disabilities, delivering evidence-based interventions to support development, mental health, and 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. 

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