Feeling intensely sensitive can overlap with autism, but autism involves deeper social communication challenges, rigid routines, specific sensory processing differences (hypo/hyper-sensitivity), and repetitive behaviors (stimming) not typical of high sensitivity (HSP), which is a broader trait; one can be both, but autism is a distinct neurodevelopmental condition impacting core functioning, while HSP is a temperament, requiring professional assessment for a diagnosis.
The "6-second rule" for autism is a communication strategy where a speaker pauses for about six seconds after asking a question or giving information, giving the autistic person extra time to process it without feeling rushed, which helps reduce anxiety and allows for a more thoughtful response, reducing frustration for both parties. Instead of repeating or rephrasing, which can be confusing, you wait, and if needed, repeat the exact same words after the pause.
Signs and Symptoms of High Functioning Autism in Adults
In wrapping up, it's clear that sensory issues aren't exclusive to autism. Many people, regardless of whether they're on the spectrum or not, may encounter unique sensory sensitivities. These can range from heightened reactions to certain stimuli to a preference for specific sensory experiences.
Around 90% of autism cases are attributed to genetic factors, meaning autism is highly heritable, with many different genes contributing, rather than a single cause, often interacting with environmental influences during early brain development, though specific environmental factors don't cause it but can increase risk. Twin studies show strong genetic links, with concordance rates between 60-90% in identical twins, and research points to complex interactions of many genes and prenatal/perinatal factors.
Additionally, inherited genetic variations contribute greatly. Research shows that both mothers and fathers can carry autism-related gene variants. Some of these are common variants that increase the risk of autism, while others are rare mutations causing more severe effects.
Other signs of autism
Five key signs of autism (ASD) involve difficulties with social communication, repetitive behaviors, intense interests, sensory sensitivities, and strict routines, such as trouble with small talk/eye contact, hand-flapping/lining things up, deep focus on specific topics, sensitivity to sounds/lights, and distress over schedule changes, though these vary widely.
Poor Motor Skills or Coordination
Sensory processing issues often affect motor development: Clumsiness, frequent tripping, or difficulty navigating spaces. Struggles with fine motor tasks, such as writing, cutting, or buttoning. Avoiding sports or physical activities that require coordination.
There are other brain disorders that mimic autism symptoms, like ADHD and anxiety disorders, including selective mutism. Autism can be misdiagnosed as another disorder with some shared symptoms.
Physical Symptoms:
Understanding autistic meltdowns and shutdowns
Chinning is a form of repetitive self-stimulatory behavior (stimming) that you may notice in children or adults with autism. It involves pressing, rubbing, or holding the chin against objects, surfaces, or even hands to gain sensory input or comfort.
Children with autism may exhibit rigidity, inflexibility and certain types of repetitive behavior such as: Insistence on following a specific routine. Having difficulty accepting changes in the schedule. A strong preoccupation with a particular interest.
"Looping" in autism refers to getting "stuck" in repetitive mental cycles, replaying thoughts, questions, worries, or phrases endlessly, often triggered by stress, sensory overload, or uncertainty, and linked to challenges with executive function and attention. It's a non-clinical term for perseveration or rumination, where an autistic individual's brain struggles to shift focus from an internal loop, which can be mentally exhausting but sometimes also comforting.
What do sensory meltdowns look like? All children react differently, but behaviour you might see during a sensory meltdown includes children covering their eyes or ears or shutting down and refusing to move.
Yes! Although they sound similar, sensory processing issues can be present without autism. Often children or adults with other neurodevelopmental or psychiatric conditions such as Developmental Delay, Intellectual Disability, Anxiety, ADHD, or mood disorders can also exhibit Sensory Processing Disorder.
Between 69% and 93% of people with ASD have sensory processing problems. Most children will show signs of ASD by age 2.
Research tells us that autism tends to run in families, and a meta-analysis of 7 twin studies claim that 60 to 90% of the risk of autism comes from your genome. If you have a child with autism, you are more likely to have another autistic child. Your other family members are also more likely to have a child with ASD.
Top 10 Calming Strategies for Autism
“Masking” Behaviors in Autism Spectrum Disorder
However, a person can be mildly autistic. Mildly autistic people are unable to understand the body language or emotions (sarcasm, pain, and anger) of the people around them. However, they have normal intelligence and can carry out their day-to-day activities.
Like all people on the autism spectrum, people who are high functioning have a hard time with social interaction and communication. They don't naturally read social cues and might find it difficult to make friends. They can get so stressed by a social situation that they shut down.
Seven key signs of autism spectrum disorder (ASD) often involve challenges with social communication (like avoiding eye contact, not responding to names), restricted/repetitive behaviors (like repetitive movements or strict routines), sensory sensitivities (unusual reactions to sounds, lights, textures), and difficulties with emotional understanding or verbal expression, though signs vary greatly and appear differently across ages. Key indicators include limited gestures, delayed speech, intense focus on specific objects, difficulty with pretend play, and strong distress when routines change.