Researchers have found evidence that suggests autism spectrum disorder (ASD) – conditions characterised by impaired social ability, repetitive behaviours, and abnormal reactions to sensory stimuli – are not merely the result of defects in brain development – a possibility that scientists have been mulling over for years.
Instead, at least some effects of ASD go beyond the brain, and could impact the peripheral nerves that send sensory information from limbs to the brain, the researchers suggest. This means that other parts of the nervous system – besides the brain – could partly be responsible for the way people with ASD experience and react to stimuli.
From our very good friends over at sciencealert. com