>As autism is a particular condition of the brain, you really can't backtrack it to shamanism or cave art, these things arose from hunting or a need for religion; perhaps it is her 6th sense which has become fully developed and it this she shares with prehistoric man/woman..<
But would you not agree that 'abnormal' brain functions might be similar to artificially induced abnormal brain functions? I don't now the answer to that moss but it is a fact that numerous artists (poets, writers and musicians included) were either not 'normal' (in the medical sense of he word) or they induced 'abnormality' through artificial agents.