The Neuroscience of Overwhelm
Deciphering the biological signal of too much, too fast
Your nervous system runs on a budget. Overwhelm is what happens when the withdrawals have been outpacing the deposits — and the body finally calls it in.
aliabreonmd.substack.com/p/the-neuros...
23.02.2026 02:36 — 👍 0 🔁 0 💬 0 📌 0
The Neuroscience of Overwhelm
Deciphering the biological signal of too much, too fast
As my 13-year-old PDAer recovers from burnout, I thought the timing was right to write on the neuroscience of overwhelm.
open.substack.com/pub/aliabreo...
21.02.2026 21:35 — 👍 0 🔁 0 💬 0 📌 0
A great paper on double empathy theory: autistic social challenges aren’t deficits, but a mismatch between autistic and non-autistic communication and experience. The DSM’s deficit-based framing of autism obscures that reality.
11.12.2025 17:24 — 👍 0 🔁 0 💬 0 📌 0
Hi Helen! Thank you and I am so happy this piqued your interest. I have been quietly reading your work for the last couple years and so it is wonderful to get to connect with you.
08.12.2025 22:16 — 👍 1 🔁 0 💬 1 📌 0
Ezra Klein recently wrote: "Attention is sometimes an act. But first it is an instinct."
We think we choose what we notice. But the initial decision was made before conscious awareness arrived. Pulling attention from its natural direction? That takes effort.
08.12.2025 14:44 — 👍 0 🔁 0 💬 0 📌 0
It is heartbreaking to see how medical science and autistic lived experience has been pushed aside and made way for fear-based messaging. There is a complex interplay between the immune system, stress biology and sensory procesing but vaccines are not the problem.
07.12.2025 16:44 — 👍 2 🔁 0 💬 0 📌 0
Yes!! Autism is fundamentally a difference in how salient (important and interesting) information engages with the attentional networks and interests systems.
07.12.2025 16:37 — 👍 0 🔁 0 💬 0 📌 0
Yes! It is a difference in how processing resources are distributed. The autistic mind naturally attributes more resources to important and interesting experiences. This deepens processing in some areas, but leaves less resources for others. The theory of monotropism.
07.12.2025 16:35 — 👍 3 🔁 0 💬 0 📌 0
We tell autistic kids to stop spinning, stop flapping—stop expressing joy so visibly. When did you last let happiness move through your whole body? Laugh without checking yourself, or swing just for the rush? My autistic son is teaching me to remember.
07.12.2025 16:32 — 👍 0 🔁 0 💬 0 📌 0
Could the Salience Network Be the Neurobiological Basis for Monotropism?
A speculative synthesis from a physician steeped in autism, sensory science, and the neuroscience of attention.
Autism studies say the autistic brain is over-connected. Others say under-connected. Others: both.
Monotropism makes sense of it.
Is the Salience Network the neurobiology beneath it?
I explore that idea here ⬇️
07.12.2025 16:13 — 👍 10 🔁 2 💬 1 📌 0
Thank you Fergus!
02.12.2025 00:21 — 👍 1 🔁 0 💬 0 📌 0
I needed a new lens
How lived experience reshaped what I thought I knew
I’ve been holding these reflections quietly for a long time.
I’m finally ready to begin writing about autism, monotropism, attention, and what I’ve learned along the way.
Excited to share my first post!
aliabreonmd.substack.com/p/why-im-wri...
01.12.2025 00:32 — 👍 6 🔁 5 💬 1 📌 0
Stimpunks is created by and for neurodivergent and disabled people. We provide mutual aid, learning opportunities, human-centered research, and living wages for our community.
Authenticity is our purest freedom.
The greatest autism info you will ever find, from autistic people, professionals, and parents. www.ThinkingAutism.com & buttondown.com/TPGA. Pro-neurodiversity. Even more TPGA community discussions on IG and FB.
To provide information and support for all members of the autistic and autism communities https://patienttalk.org/tag/autism/
Family, survivor and neurodivergent led advocacy to end restraint, seclusion and institutional abuses of children. #AgainstRestraint #SICAA SICAA Coalition.
🔗 againstrestraint.com
Monotropic writer, science tutor, Autistic community organiser and independent researcher. Based in Edinburgh.
they/them.
https://linktr.ee/0olong
💜 ♾️ AuDHD | Monotropic | Neuro-affirming Autism advocate & consultant.
Interests: monotropism, flow, burnout & neuroqueer theory.
Writer • Trainer • Resource Creator | Former SEND EY/Primary teacher ♾️ 💜
https://www.autisticrealms.com/
Independent Researcher focused on autism and substance use, neuroqueer theory, reframing neurofuturism, and systemic oppression.
Author with enough neurodivergent labels to make the system nervous.
Apostate of Normativity.
Monotropic semi speaking adult writing about neurodivergent play & adventures. MTB, digital a11y, AAC user, podcast host & lion tamer (he/him)
Co-Creative Director @stimpunks.org
I helped start WordPress.org, WordPress.com, WordCamp.org, and Automattic.com.
♾️ Disabled, neurodivergent counsellor & rewind trauma therapist
♾️ Ad hoc supervision/consultation for neurodiversity topics
♾️ UK-based online counselling
♾️ Home ed, LGBTQIA+ & ND affirming
♾️ www.linktr.ee/jadefarringtonlaunceston
Senior lecturer, autism researcher. Reader, writer, radio listener, swimmer and nature lover. Arts buff.
Dislikes: cronyism. Fan of The Archers 🙂
AuDHD PDA (she/her/they) non binary, lived experience trainer, author, consultant, anti fascist, anti racist. I specialise in autistic burnout. Founder of ABN- The Autistic Burnout Network.
www.autisticadvocate.co.uk
Prof of Developmental Psychology at Uni of Edinburgh
Dean of Equity Inclusion & Community for my faculty
Editor of @journalautism.bsky.social
Creator of #AutRes and Edinburgh! feeds
Founder of SuperTroop
"a loose canon"
Queer, cis, she/her
Autistic, parent, author, consultant, trainer, speaker, and academic researcher, specialising in #AutisticMasking, Identity Development, Stigma & #AutisticBurnout
www.theautisticadvocate.com
Therapist, trainer & consultant. Autistic, trans, mixed race. Woodland creature. They/them
https://linktr.ee/scrappapertiger
Author, keynote speaker, geek, autistic and ADHD.
www.petewharmby.com
An Autistic owned business supporting organisations develop their knowledge and understanding of Autistic lived experiences.
Training, consulting, webinars, and bespoke services
www.auroraconsulting.scot
Head of Training & Co-Production, AT-Autism
Visiting Fellow, ACoRNS, University of Southampton
Autistic introvert
Likes to crochet, tries to run
Autistic autism researcher. Dev psych.
Masking, relationships, stigma.
She/her.