This has been linked to “hyperfocus”, or a deep and undivided level of attention and devotion to a task. The theory of monotropism was invented by Dr Dinah Murray, Dr Wenn Lawson, and Mike Lesser in the ’90s, though it’s one Dr Murray’s son, science teacher and writer Fergus Murray, says is “largely overlooked by psychologists”.
Article source: https://www.huffingtonpost.co.uk/entry/autistic-flow-explained_uk_6adf54a3e4b06b41b48dda3b