Status: Source/research note. Not ready for public use without current verification.
This note preserves useful concepts from older ADHD workshops while separating them from claims that should be checked against current evidence.
ADHD Has a Strong Genetic Component
The older Sarah Cheyette workshop notes emphasize the familial and genetic contribution to ADHD and the complexity of ADHD genetics.
Useful point to retain: ADHD has a substantial genetic contribution, but there is no single genetic test that diagnoses ADHD or tells an individual which ADHD medication or dose will work best.
ADHD Involves More Than Paying Attention
The workshop material describes difficulties involving:
- task completion
- missed appointments
- time
- memory
- shifting attention
- hyperfocus
- inhibition
- emotional regulation
- motivation
- working memory
- planning
- problem solving
The strongest durable idea is:
Knowing what to do does not automatically create the ability to do it.
That gap between knowledge and performance is useful for explaining executive functioning.
Reward, Motivation, and Dopamine
The older notes emphasize dopamine and reward processing and connect stimulant medication with dopaminergic pathways.
Keep the broad point that ADHD involves brain systems related to reward, motivation, attention, and executive functioning.
Do not carry forward simplistic statements such as ADHD is caused by low dopamine without current evidence review.
The Success/Failure Feedback Loop
A strong conceptual idea in the source material is that support or treatment can change more than immediate task performance.
When focusing, organizing, prioritizing, or completing work becomes more accessible, the person may experience:
- more completion
- more positive feedback
- greater confidence
- greater willingness to approach the next task
The reverse can also happen:
difficulty → mistakes or incomplete work → negative feedback → self-questioning → avoidance or quitting → more difficulty
This deserves further development because repeated experience can shape self-trust and expectations, not just symptoms.
ADHD Does Not Occur in a Brain Isolated From the Body
The older Monica Heller workshop material discusses:
- sleep
- exercise
- nutrition
- stress
- breathing
- mindfulness
- social connection
- hormones
- dopamine
- norepinephrine
- cortisol
- serotonin
- melatonin
- oxytocin
- BDNF
The broad idea is useful: sleep, stress, hormonal changes, physical health, environment, and physiological state can affect attention and executive functioning.
The individual neurochemical explanations need current verification.
Hormones and ADHD
The historical workshop notes identify puberty, menstrual-cycle changes, pregnancy, perimenopause, and menopause as potentially relevant to ADHD experience.
The older source makes specific claims about estrogen, serotonin, dopamine, and medication response. Treat these as research leads only. Use current hormone-ADHD evidence for public-facing material.
Reframing the Old “Internal Pharmacy” Idea
The phrase is dated, but the underlying question remains useful:
What conditions help this person's nervous system function better?
Possible domains to investigate include:
- sleep
- movement
- nourishment
- stress load
- rest
- social connection
- environmental fit
- self-reflection
- hormonal changes
A more current neurodivergent-affirming formulation is:
Which conditions improve this person's capacity, regulation, attention, and ability to do what they want to do?
Verification List Before Public Use
Before using this material publicly, update:
- current ADHD genetics evidence
- current reward-processing models
- what can and cannot be said about dopamine
- stimulant mechanisms
- BDNF and exercise evidence
- sleep and glymphatic claims
- ADHD and menstrual-cycle evidence
- perimenopause and menopause evidence
- claims about serotonin, oxytocin, breathing, mindfulness, and specific nutrients
Keep the conceptual frameworks where useful, but rebuild biological claims from current sources.
Additional 2023 Neurobiology Notes — Research Leads Only
Another older ADHD basics note includes specific claims about cortical thickness, the parietal and cerebellar regions, basal ganglia, white-matter tracts, visual-attention connectivity, and dopamine pathways.
These are worth preserving as research leads, not as ready-to-publish explanations of what causes ADHD.
What can be retained conceptually
- ADHD is a neurodevelopmental condition with a substantial genetic contribution.
- Brain-imaging research has found group-level differences across multiple brain regions and networks.
- Attention, inhibition, working memory, reward, motivation, and emotional regulation involve distributed brain systems rather than one single “ADHD area.”
- Neurotransmitters such as dopamine and norepinephrine are relevant to ADHD and to medication mechanisms, but ADHD should not be reduced to a simple chemical-deficiency explanation.
What needs verification before public use
- claims that particular structural differences cause specific ADHD symptoms
- the significance and consistency of cortical-thickness findings
- claims about selective-visual-attention connectivity
- simplified descriptions of the mesocortical and reward pathways as “disrupted”
- older descriptions of synaptic chemicals as the primary problem in ADHD
- claims about specific environmental or injury causes that are presented without qualification
Important distinction: Group-level neuroimaging findings do not provide a brain scan that can diagnose an individual person with ADHD. ADHD is heterogeneous, and no single brain pattern explains every person's presentation.
ADHD Presentations — Correct the Old “Three Kinds” Language
An older note lists three “kinds” of ADHD and labels one simply “impulsive.” Preserve the topic, but update the terminology before reuse.
The current diagnostic language is:
- predominantly inattentive presentation
- predominantly hyperactive-impulsive presentation
- combined presentation
“Presentation” is more accurate than treating these as three fixed types. A person's symptom pattern can also look different across development and context.
This material belongs in ADHD basics, not as a separate duplicate note.