Normal
Almost that of a computer? ! Get someone to program a Cray to conduct brain surgery on one of your nominated patients, and we'll see if the results still stand, shall we? Spineys links are interesting, or at least one of them; http://www.centreforthemind.com/publications/IntegerArithmetic.cfm"For example, in a pioneering empirical study, a mathematics graduate trained in the appropriate algorithms took 11.46 seconds to generate all the primes between integers 301 and 393 whereas a non-verbal autistic young man who had not previously confronted such a task took only 1.16 seconds (Hermelin and O'Connor 1990). Not only was the savant ten times faster, but he also made far fewer errors. Importantly, no practically realizable algorithm has yet been invented for rapidly identifying primes in excess of 8 figures as apparently performed by the autistic savant twins (Sacks 1985)."What I have always found fascinating is some of these people's ability to reproduce a graphic example of something they saw earlier; photographic memory. Many people can master mathematical 'tricks' to remember/work out dates and times, but to draw the London skyline from memory in the way I saw someone do it (on Blue Peter?) years ago was incredible. That 'trick' cannot be learned.Question: These people that can calculate the day of the week in a given year in the past, are they aware in advance of the calendar adjustments that have taken place?
Almost that of a computer? ! Get someone to program a Cray to conduct brain surgery on one of your nominated patients, and we'll see if the results still stand, shall we?
Spineys links are interesting, or at least one of them; http://www.centreforthemind.com/publications/IntegerArithmetic.cfm
"For example, in a pioneering empirical study, a mathematics graduate trained in the appropriate algorithms took 11.46 seconds to generate all the primes between integers 301 and 393 whereas a non-verbal autistic young man who had not previously confronted such a task took only 1.16 seconds (Hermelin and O'Connor 1990). Not only was the savant ten times faster, but he also made far fewer errors. Importantly, no practically realizable algorithm has yet been invented for rapidly identifying primes in excess of 8 figures as apparently performed by the autistic savant twins (Sacks 1985)."
What I have always found fascinating is some of these people's ability to reproduce a graphic example of something they saw earlier; photographic memory. Many people can master mathematical 'tricks' to remember/work out dates and times, but to draw the London skyline from memory in the way I saw someone do it (on Blue Peter?) years ago was incredible. That 'trick' cannot be learned.
Question: These people that can calculate the day of the week in a given year in the past, are they aware in advance of the calendar adjustments that have taken place?