Orange balloon with a string.
Logo for

5 Lesser-Known Signs of High-Functioning Autism and How to Recognize Them

High-functioning autism (HFA) can be tricky to recognize because, on the surface, people with it often seem to be just like everyone else. They might have great verbal skills and even excel academically. 


But there are some lesser-known symptoms that are important to be aware of, and they can give us a better understanding of what life with HFA is really like.


Sensory Sensitivities

One thing many people don’t realize is that people with high-functioning autism often experience sensory overload. Things like bright lights, loud noises, or certain textures can feel overwhelming.


While someone might be able to mask these reactions in public, it can still lead to discomfort, anxiety, or even meltdowns when they’re in a setting that’s too stimulating.


Struggles with Social Cues

Another symptom that's often overlooked is the difficulty in picking up on unspoken social cues.


People with HFA may have trouble reading body language, understanding sarcasm, or knowing when a conversation has run its course. This can make social interactions feel awkward, even though they’re trying their best to connect.


Deep Focus on Interests

If you’ve noticed someone with HFA getting deeply absorbed in one particular interest, you’re not alone. People with high-functioning autism often dive into specific topics with incredible passion and focus. 


Whether it’s a hobby, a subject of study, or a routine, their intense interest in certain things can be both a strength and a challenge when it takes over their time and energy.


Difficulty Switching Tasks

Have you ever seen someone struggle to switch gears from one task to another? For people with high-functioning autism, this can be a common challenge.


They may get so focused on what they’re doing that it becomes really hard to move on to something else, even if it’s necessary. This can be frustrating, especially in environments like school or work where flexibility is needed.


Emotional Regulation Challenges

While someone with HFA might be able to express their feelings clearly, regulating those emotions can be tough. Emotional outbursts, meltdowns, or even shutting down can happen, especially when they’re overwhelmed. 


The tricky part is, these reactions might not always match how they appear on the outside, making it harder for others to understand what’s going on.


Recognizing these lesser-known symptoms of high-functioning autism can help us be more understanding and supportive. If you or a loved one is navigating life with autism, it’s important to have the right resources and support.


At Steady Strides ABA, we’re here to help with a range of ABA therapy services available in Texas and New Mexico. Our services include:



If you’d like to learn more about how ABA therapy can support individuals with autism, don’t hesitate to get in touch!


FAQs


  • What is high-functioning autism?

    High-functioning autism refers to individuals on the autism spectrum who may have strong verbal and intellectual skills but still face challenges in areas like social interactions and sensory processing.


  • How can ABA therapy help someone with high-functioning autism?

    ABA therapy focuses on teaching practical skills, improving communication, and managing behavior in a way that’s personalized to each individual. It helps individuals with autism navigate everyday situations more effectively.


  • Is high-functioning autism the same as Asperger’s Syndrome?

    While they share similarities, high-functioning autism and Asperger's Syndrome are not exactly the same. Asperger's is a form of autism where people typically have strong language skills, but the term has become less commonly used in favor of describing autism spectrum disorders as a whole.


Sources:



  • https://pmc.ncbi.nlm.nih.gov/articles/PMC5948267/
  • https://health.clevelandclinic.org/high-functioning-autism
  • https://iidc.indiana.edu/irca/articles/tips-for-teaching-high-functioning-people-with-autism.html
  • https://pmc.ncbi.nlm.nih.gov/articles/PMC3808966/
  • https://www.healthline.com/health/high-functioning-autism


Woman and child playing with blocks and xylophone on a rug; indoors, smiling.

Reading about ABA is one thing. Experiencing your child’s progress is another.

Talk with one of our Board Certified Behavior Analysts (BCBAs) to learn how therapy can help your child grow, communicate, and thrive — at home or in the community.

No commitment required.

Looking for Guidance?

We're Here for You!

Our dedicated professionals are committed to helping your child thrive. Connect with us to learn how our ABA therapy can make a difference.

Get In Touch With Our ABA Experts Today

An ABA Therapist plays on grass with autistic toddler using colorful alphabet blocks outdoors.
By Jane Miller February 20, 2026
Learn the difference between autism and speech delay, including signs, causes, and when to seek support to ensure your child’s communication development.
Therapist high-fives autistic toddler at play table with colorful toy blocks at home after therapy.
By Tova Leibowitz, BCBA, Clinical Director February 20, 2026
Discover what ABA therapy looks like for a 2-year-old, including activities, goals, and how early intervention supports communication and social growth.
Therapist and autistic boy drink lemonade with straws at kitchen table with fruit after therapy.
By Jane Miller February 17, 2026
Discover feeding strategies that support children with autism and picky eating, including sensory tools, gradual exposure, and structured mealtime routines.
Female therapist holding clipboard listens as young girl hugs teddy bear during counseling session.
By Jane Miller February 17, 2026
Learn the biggest misconceptions about punishment in ABA therapy, how it is defined in practice, and how modern ABA emphasizes positive, ethical strategies.
An ABA therapist holding crying autistic baby while older woman offers support in living room.
By Jane Miller February 17, 2026
Learn the subtle signs of sensory overload in children with autism that parents may overlook and how early recognition supports regulation and comfort daily.
Autistic girl drawing on paper during therapy session while seated beside adult therapist on couch.
By Jane Miller February 17, 2026
Learn about the most common obsessions in autism, why they occur, and how focused interests influence routines, learning, and social interactions daily.
Autistic baby boy in yellow sweater climbing inside cushioned sensory chair at home during therapy.
By Jane Miller February 17, 2026
Learn what makes a sensory rocking chair effective for children with autism, including motion input, calming support, and sensory regulation benefits.
Business professional leads meeting with two therapists, reviewing charts in modern office.
By Jane Miller February 17, 2026
Prepare for your RBT interview with common questions and answers. Learn how to highlight skills, experience, and ABA knowledge to succeed in your career.
 Two therapists pointing at computer monitor and tablet screen while discussing notes at office desk
By Jane Miller February 17, 2026
Explore advancement paths for Registered Behavior Technicians. Learn career growth options, certifications, and opportunities to progress in the ABA field
Male ABA therapist studying at desk with tablet, notebook, globe, and books in bright office.
By Jane Miller February 17, 2026
Find out if you must retake the RBT exam annually. Learn renewal rules, competency checks, and continuing education needed to keep certification active.
Show More