But if someone doesn't meet the diagnostic criteria for ASD/ADHD, then they are in the NT sphere, even if they can satisfy some parts of the diagnostic criteria.
NT is NOT an antonym of ASD/ADHD.
ND is NOT a synonym for ASD/ADHD.
If someone does not meet the diagnosis for ASD/ADHD (and if the do) they could be dyspraxia, dyslexic, have dyscalculia, high IQ, low IQ, be young, be old, be a teenager, be left handed, have epilepsy, cerebral palsy, schizophrenia, Foetal Alcohol Syndrome, depression, BPD, language developmental disorder, OCD, auditory processing disorder, visual processing disorder, be blind and/or deaf, suffered a brain injury or PTSD, have been exposed to with valproate, phenobarbital, phenytoin, or topiramate in the womb, experienced severe malnutrition or vitamin or iodine deficiency, have dementia or a stroke, have a brain parasite like toxoplasmosis, Lymes disease or an amoebic infection, have drug or alcohol dependency…. And on it goes. All of which impact how a person’s brain works and means a person is not ‘neurotypical’.