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Savant syndrome

August 20, 2023

"Savant" redirects here. For other uses, see Savant (disambiguation).

Savant syndrome (/sæˈvɑːnt, səˈvɑːnt, ˈsævənt/) is a phenomenon, sometimes following recovery from brain damage, that can create a condition in which someone despite often having significant mental disabilities demonstrates certain abilities far in excess of average.[1][2] The skills that savants excel at are generally related to memory.[1] This may include rapid calculation, artistic ability, map making, or musical ability.[1] Usually, only one exceptional skill is present.[1]

Savant syndrome
Other namesAutistic savant, idiot savant (historical)[1]
Kim Peek, the savant who was the inspiration for the main character in the movie Rain Man
SpecialtyPsychiatry, Neurology
SymptomsGeneral mental disability with certain abilities far in excess of average[1][2]
TypesCongenital, acquired[3]
CausesNeurodevelopmental disorder such as autism spectrum disorder, brain injury[1]
Frequency~1 in a million people[4]

Those with the condition generally have a neurodevelopmental disorder such as autism spectrum disorder or have a brain injury.[1] About half of cases are associated with autism, and these individuals may be known as "autistic savants".[1] While the condition usually becomes apparent in childhood, some cases develop later in life.[1] It is not recognized as a mental disorder within the DSM-5, as it relates to parts of the brain healing or restructuring.[5]

Savant syndrome is estimated to affect around one in a million people.[4] The condition affects more males than females, at a ratio of 6:1.[1] The first medical account of the condition was in 1783.[1] Among those with autism, 1 in 10 to 1 in 200 have savant syndrome to some degree.[1] It is estimated that there are fewer than a hundred prodigious savants, with skills so extraordinary that they would be considered spectacular even for a non-impaired person, currently living.[1]

Signs and symptoms

 
Venice by British artistic savant Stephen Wiltshire

Savant skills are usually found in one or more of five major areas: art, memory, arithmetic, musical abilities, and spatial skills.[1] The most common kinds of savants are calendrical savants,[6][7] "human calendars" who can calculate the day of the week for any given date with speed and accuracy, or recall personal memories from any given date. Advanced memory is the key "superpower" in savant abilities.[6]

Approximately half of savants are autistic; the other half often have some form of central nervous system injury or disease.[1] It is estimated that up to 10% of those with autism have some form of savant abilities.[1][8][9]

Calendrical savants

A calendrical savant (or calendar savant) is someone who – despite having an intellectual disability – can name the day of the week of a date, or vice versa, on a limited range of decades or certain millennia.[7][10] The rarity of human calendar calculators is possibly due to the lack of motivation to develop such skills among the general population, although mathematicians have developed formulas that allow them to obtain similar skills.[10] Calendrical savants, on the other hand, may not be prone to invest in socially engaging skills.[11]

Mechanism

Psychological

No widely accepted cognitive theory explains savants' combination of talent and deficit.[12] It has been suggested that individuals with autism are biased towards detail-focused processing and that this cognitive style predisposes individuals either with or without autism to savant talents.[13] Another hypothesis is that savants hyper-systemize, thereby giving an impression of talent. Hyper-systemizing is an extreme state in the empathizing–systemizing theory that classifies people based on their skills in empathizing with others versus systemizing facts about the external world.[14] Also, the attention to detail of savants is a consequence of enhanced perception or sensory hypersensitivity in these unique individuals.[14][15] It has also been hypothesized that some savants operate by directly accessing deep, unfiltered information that exists in all human brains that is not normally available to conscious awareness.[16]

Neurological

In some cases, savant syndrome can be induced following severe head trauma to the left anterior temporal lobe.[1] Savant syndrome has been artificially replicated using low-frequency transcranial magnetic stimulation to temporarily disable this area of the brain.[17]

Epidemiology

See also: Epidemiology of autism

There are no objectively definitive statistics about how many people have savant skills. The estimates range from "exceedingly rare"[18] to one in ten people with autism having savant skills in varying degrees.[1] A 2009 British study of 137 parents of autistic children found that 28% believe their children met the criteria for a savant skill, defined as a skill or power "at a level that would be unusual even for 'normal' people".[19] As many as 50 cases of sudden or acquired savant syndrome have been reported.[20][21]

Males with savant syndrome outnumber females by roughly 6:1 (in Finland),[22] slightly higher than the sex ratio disparity for autism spectrum disorders of 4.3:1.[23]

History

The term idiot savant (French for "learned idiot") was first used to describe the condition in 1887 by John Langdon Down, who is known for his description of Down syndrome. The term idiot savant was later described as a misnomer because not all reported cases fit the definition of idiot, originally used for a person with a very severe intellectual disability. The term autistic savant was also used as a description of the disorder. Like idiot savant, the term came to be considered a misnomer because only half of those who were diagnosed with savant syndrome were autistic. Upon realization of the need for accuracy of diagnosis and dignity towards the individual, the term savant syndrome became widely accepted terminology.[1][18]

Society and culture

Notable cases

Acquired cases

Fictional cases

See also

References

  1. ^ a b c d e f g h i j k l m n o p q r s t Treffert DA (May 2009). "The savant syndrome: an extraordinary condition. A synopsis: past, present, future". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 364 (1522): 1351–7. doi:10.1098/rstb.2008.0326. PMC 2677584. PMID 19528017.
  2. ^ a b Miller LK (January 1999). "The savant syndrome: intellectual impairment and exceptional skill". Psychological Bulletin. 125 (1): 31–46. doi:10.1037/0033-2909.125.1.31. PMID 9990844.
  3. ^ Hughes JR (2012). "The savant syndrome and its possible relationship to epilepsy". Advances in Experimental Medicine and Biology. 724: 332–43. doi:10.1007/978-1-4614-0653-2_25. ISBN 978-1-4614-0652-5. PMID 22411254.
  4. ^ a b Hyltenstam, Kenneth (2016). Advanced Proficiency and Exceptional Ability in Second Languages. Walter de Gruyter GmbH & Co KG. p. 258. ISBN 9781614515173. from the original on 2020-09-25. Retrieved 2020-08-29.
  5. ^ Sperry, Len (2015). Mental Health and Mental Disorders: An Encyclopedia of Conditions, Treatments, and Well-Being [3 volumes]: An Encyclopedia of Conditions, Treatments, and Well-Being. ABC-CLIO. p. 969. ISBN 9781440803833. from the original on 2020-09-25. Retrieved 2020-08-29.
  6. ^ a b Saloviita T, Ruusila L, Ruusila U (August 2000). "Incidence of Savant Syndrome in Finland". Perceptual and Motor Skills. 91 (1): 120–2. doi:10.2466/pms.2000.91.1.120. PMID 11011882. S2CID 20306664.
  7. ^ a b Kennedy DP, Squire LR (August 2007). "An analysis of calendar performance in two autistic calendar savants". Learning & Memory. 14 (8): 533–8. doi:10.1101/lm.653607. PMC 1951792. PMID 17686947.
  8. ^ Treffert DA. "The Autistic Savant". Wisconsin Medical Society. from the original on 2019-07-13. Retrieved 2014-07-24.
  9. ^ "Savant Syndrome Statistics". Health Research Funding. 2014-07-12. from the original on 2020-09-25. Retrieved 2014-07-24.
  10. ^ a b Cowan, Richard; Carney, Daniel P. J. (June 2006). "Calendrical savants: Exceptionality and Practice". Cognition. 100 (2): B1–B9. doi:10.1016/j.cognition.2005.08.001. PMID 16157326. S2CID 34912923. from the original on 2021-08-29. Retrieved 2021-08-24.
  11. ^ Cowan R, Frith C (May 2009). "Do calendrical savants use calculation to answer date questions? A functional magnetic resonance imaging study". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 364 (1522): 1417–24. doi:10.1098/rstb.2008.0323. PMC 2677581. PMID 19528025.
  12. ^ Pring, Linda (2005). "Savant talent" (PDF). Developmental Medicine & Child Neurology. 47 (7): 500–503. doi:10.1017/S0012162205000976. PMID 15991873. (PDF) from the original on 2020-09-25. Retrieved 2020-08-29.
  13. ^ Happé F, Vital P (May 2009). "What aspects of autism predispose to talent?". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. The Economist. 364 (1522): 1369–75. doi:10.1098/rstb.2008.0332. PMC 2677590. PMID 19528019. from the original on April 19, 2009. Retrieved April 16, 2009.
  14. ^ a b Baron-Cohen S, Ashwin E, Ashwin C, Tavassoli T, Chakrabarti B (May 2009). "Talent in autism: hyper-systemizing, hyper-attention to detail and sensory hypersensitivity". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 364 (1522): 1377–83. doi:10.1098/rstb.2008.0337. PMC 2677592. PMID 19528020.
  15. ^ Mottron L, Dawson M, Soulières I (May 2009). "Enhanced perception in savant syndrome: patterns, structure and creativity". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 364 (1522): 1385–91. doi:10.1098/rstb.2008.0333. PMC 2677591. PMID 19528021.
  16. ^ Snyder A (May 2009). "Explaining and inducing savant skills: privileged access to lower level, less-processed information". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. The Economist. 364 (1522): 1399–405. doi:10.1098/rstb.2008.0290. PMC 2677578. PMID 19528023. from the original on April 19, 2009. Retrieved April 16, 2009.
  17. ^ Snyder A (May 2009). "Explaining and inducing savant skills: privileged access to lower level, less-processed information". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 364 (1522): 1399–405. doi:10.1098/rstb.2008.0290. PMC 2677578. PMID 19528023.
  18. ^ a b Hiles, Dave (2001). . De Montfort University. Archived from the original on 2012-10-25. Retrieved 2012-10-06.
  19. ^ Howlin P, Goode S, Hutton J, Rutter M (May 2009). "Savant skills in autism: psychometric approaches and parental reports". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. The Economist. 364 (1522): 1359–67. doi:10.1098/rstb.2008.0328. PMC 2677586. PMID 19528018. from the original on April 19, 2009. Retrieved April 16, 2009.
  20. ^ Yant-Kinney M (2012-08-20). "An artist is born after car crash". The Inquirer. Philadelphia. Archived from the original on 2013-01-31. Retrieved 2012-11-24.
  21. ^ "'A ski accident left me with advanced mental abilities': US woman tells her extraordinary story". Daily Telegraph. 17 April 2015. from the original on 25 September 2020. Retrieved 5 April 2018.
  22. ^ Treffert, Darold. A Visual Feast 2020-09-25 at the Wayback Machine
  23. ^ Newschaffer CJ, Croen LA, Daniels J, Giarelli E, Grether JK, Levy SE, Mandell DS, Miller LA, Pinto-Martin J, Reaven J, Reynolds AM, Rice CE, Schendel D, Windham GC (2007). "The epidemiology of autism spectrum disorders". Annual Review of Public Health. 28: 235–58. doi:10.1146/annurev.publhealth.28.021406.144007. PMID 17367287.
  24. ^ McGowan, Kat (March 13, 2013). Exploring Temple Grandin's Brain. from the original on September 25, 2020. Retrieved June 20, 2018. {{cite book}}: |work= ignored (help)
  25. ^ . UC Davis Stories. March 23, 2016. Archived from the original on September 29, 2021. Retrieved August 6, 2022.
  26. ^ Badcock, Christopher (2009). The Imprinted Brain: How Genes Set the Balance Between Autism and Psychosis. London: Jessica Kingsley. p. 29. ISBN 9781849050234. from the original on 2021-08-18. Retrieved 2020-10-28.

August 20, 2023
savant, syndrome, savant, redirects, here, other, uses, savant, disambiguation, ɑː, ɑː, phenomenon, sometimes, following, recovery, from, brain, damage, that, create, condition, which, someone, despite, often, having, significant, mental, disabilities, demonst. Savant redirects here For other uses see Savant disambiguation Savant syndrome s ae ˈ v ɑː n t s e ˈ v ɑː n t ˈ s ae v e n t is a phenomenon sometimes following recovery from brain damage that can create a condition in which someone despite often having significant mental disabilities demonstrates certain abilities far in excess of average 1 2 The skills that savants excel at are generally related to memory 1 This may include rapid calculation artistic ability map making or musical ability 1 Usually only one exceptional skill is present 1 Savant syndromeOther namesAutistic savant idiot savant historical 1 Kim Peek the savant who was the inspiration for the main character in the movie Rain ManSpecialtyPsychiatry NeurologySymptomsGeneral mental disability with certain abilities far in excess of average 1 2 TypesCongenital acquired 3 CausesNeurodevelopmental disorder such as autism spectrum disorder brain injury 1 Frequency 1 in a million people 4 Those with the condition generally have a neurodevelopmental disorder such as autism spectrum disorder or have a brain injury 1 About half of cases are associated with autism and these individuals may be known as autistic savants 1 While the condition usually becomes apparent in childhood some cases develop later in life 1 It is not recognized as a mental disorder within the DSM 5 as it relates to parts of the brain healing or restructuring 5 Savant syndrome is estimated to affect around one in a million people 4 The condition affects more males than females at a ratio of 6 1 1 The first medical account of the condition was in 1783 1 Among those with autism 1 in 10 to 1 in 200 have savant syndrome to some degree 1 It is estimated that there are fewer than a hundred prodigious savants with skills so extraordinary that they would be considered spectacular even for a non impaired person currently living 1 Contents 1 Signs and symptoms 1 1 Calendrical savants 2 Mechanism 2 1 Psychological 2 2 Neurological 3 Epidemiology 4 History 5 Society and culture 5 1 Notable cases 5 1 1 Acquired cases 5 2 Fictional cases 6 See also 7 ReferencesSigns and symptoms Edit Venice by British artistic savant Stephen WiltshireSavant skills are usually found in one or more of five major areas art memory arithmetic musical abilities and spatial skills 1 The most common kinds of savants are calendrical savants 6 7 human calendars who can calculate the day of the week for any given date with speed and accuracy or recall personal memories from any given date Advanced memory is the key superpower in savant abilities 6 Approximately half of savants are autistic the other half often have some form of central nervous system injury or disease 1 It is estimated that up to 10 of those with autism have some form of savant abilities 1 8 9 Calendrical savants Edit A calendrical savant or calendar savant is someone who despite having an intellectual disability can name the day of the week of a date or vice versa on a limited range of decades or certain millennia 7 10 The rarity of human calendar calculators is possibly due to the lack of motivation to develop such skills among the general population although mathematicians have developed formulas that allow them to obtain similar skills 10 Calendrical savants on the other hand may not be prone to invest in socially engaging skills 11 Mechanism EditPsychological Edit No widely accepted cognitive theory explains savants combination of talent and deficit 12 It has been suggested that individuals with autism are biased towards detail focused processing and that this cognitive style predisposes individuals either with or without autism to savant talents 13 Another hypothesis is that savants hyper systemize thereby giving an impression of talent Hyper systemizing is an extreme state in the empathizing systemizing theory that classifies people based on their skills in empathizing with others versus systemizing facts about the external world 14 Also the attention to detail of savants is a consequence of enhanced perception or sensory hypersensitivity in these unique individuals 14 15 It has also been hypothesized that some savants operate by directly accessing deep unfiltered information that exists in all human brains that is not normally available to conscious awareness 16 Neurological Edit In some cases savant syndrome can be induced following severe head trauma to the left anterior temporal lobe 1 Savant syndrome has been artificially replicated using low frequency transcranial magnetic stimulation to temporarily disable this area of the brain 17 Epidemiology EditSee also Epidemiology of autism There are no objectively definitive statistics about how many people have savant skills The estimates range from exceedingly rare 18 to one in ten people with autism having savant skills in varying degrees 1 A 2009 British study of 137 parents of autistic children found that 28 believe their children met the criteria for a savant skill defined as a skill or power at a level that would be unusual even for normal people 19 As many as 50 cases of sudden or acquired savant syndrome have been reported 20 21 Males with savant syndrome outnumber females by roughly 6 1 in Finland 22 slightly higher than the sex ratio disparity for autism spectrum disorders of 4 3 1 23 History EditThe term idiot savant French for learned idiot was first used to describe the condition in 1887 by John Langdon Down who is known for his description of Down syndrome The term idiot savant was later described as a misnomer because not all reported cases fit the definition of idiot originally used for a person with a very severe intellectual disability The term autistic savant was also used as a description of the disorder Like idiot savant the term came to be considered a misnomer because only half of those who were diagnosed with savant syndrome were autistic Upon realization of the need for accuracy of diagnosis and dignity towards the individual the term savant syndrome became widely accepted terminology 1 18 Society and culture EditNotable cases Edit Daniel Tammet British author and polyglot Derek Paravicini British blind musical prodigy and pianist Henriett Seth F Hungarian autistic writer and artist Kim Peek American megasavant Leslie Lemke American musician Rex Lewis Clack American pianist and musical savant Matt Savage American musician Stephen Wiltshire British architectural artist Temple Grandin 24 American professor of animal science David M Nisson American scientist 25 Tom Wiggins American blind pianist and composer 26 Tommy McHugh British artist and poet Kodi Lee 2019 America s Got Talent winner musician Acquired cases Edit Alonzo Clemons American acquired savant sculptor Anthony Cicoria American acquired savant pianist and medical doctor Derek Amato American acquired savant composer and pianist Patrick Fagerberg American acquired savant artist inventor and former lawyer Orlando Serrell American acquired savant Jason Padgett American mathematician acquired after being hit in the back of the head while at a barFictional cases Edit Shaun Murphy autistic savant in the 2017 American medical drama television series The Good Doctor Raymond Babbitt autistic savant in the 1988 film Rain Man inspired by Kim Peek Park Shi on autistic savant in the 2013 South Korean medical drama Good Doctor Kazan autistic savant in the 1997 film Cube Kazuo Kiriyama main antagonist in the Japan 1999 novel Battle Royale Jeong Jae hee autistic savant in the 2021 South Korean psychological drama Mouse Patrick Obyedkov acquired savant in a 2007 episode of the U S medical drama House Woo Young woo autistic savant in the 2022 South Korean legal drama Extraordinary Attorney Woo Mashiro Shiina savant in the 2012 anime series The Pet Girl of Sakurasou See also EditAutistic art Child prodigy Creativity and mental illness Wise fool Idiot Mental calculator Hyperthymesia Ideasthesia Twice exceptionalReferences Edit a b c d e f g h i j k l m n o p q r s t Treffert DA May 2009 The savant syndrome an extraordinary condition A synopsis past present future Philosophical Transactions of the Royal Society of London Series B Biological Sciences 364 1522 1351 7 doi 10 1098 rstb 2008 0326 PMC 2677584 PMID 19528017 a b Miller LK January 1999 The savant syndrome intellectual impairment and exceptional skill Psychological Bulletin 125 1 31 46 doi 10 1037 0033 2909 125 1 31 PMID 9990844 Hughes JR 2012 The savant syndrome and its possible relationship to epilepsy Advances in Experimental Medicine and Biology 724 332 43 doi 10 1007 978 1 4614 0653 2 25 ISBN 978 1 4614 0652 5 PMID 22411254 a b Hyltenstam Kenneth 2016 Advanced Proficiency and Exceptional Ability in Second Languages Walter de Gruyter GmbH amp Co KG p 258 ISBN 9781614515173 Archived from the original on 2020 09 25 Retrieved 2020 08 29 Sperry Len 2015 Mental Health and Mental Disorders An Encyclopedia of Conditions Treatments and Well Being 3 volumes An Encyclopedia of Conditions Treatments and Well Being ABC CLIO p 969 ISBN 9781440803833 Archived from the original on 2020 09 25 Retrieved 2020 08 29 a b Saloviita T Ruusila L Ruusila U August 2000 Incidence of Savant Syndrome in Finland Perceptual and Motor Skills 91 1 120 2 doi 10 2466 pms 2000 91 1 120 PMID 11011882 S2CID 20306664 a b Kennedy DP Squire LR August 2007 An analysis of calendar performance in two autistic calendar savants Learning amp Memory 14 8 533 8 doi 10 1101 lm 653607 PMC 1951792 PMID 17686947 Treffert DA The Autistic Savant Wisconsin Medical Society Archived from the original on 2019 07 13 Retrieved 2014 07 24 Savant Syndrome Statistics Health Research Funding 2014 07 12 Archived from the original on 2020 09 25 Retrieved 2014 07 24 a b Cowan Richard Carney Daniel P J June 2006 Calendrical savants Exceptionality and Practice Cognition 100 2 B1 B9 doi 10 1016 j cognition 2005 08 001 PMID 16157326 S2CID 34912923 Archived from the original on 2021 08 29 Retrieved 2021 08 24 Cowan R Frith C May 2009 Do calendrical savants use calculation to answer date questions A functional magnetic resonance imaging study Philosophical Transactions of the Royal Society of London Series B Biological Sciences 364 1522 1417 24 doi 10 1098 rstb 2008 0323 PMC 2677581 PMID 19528025 Pring Linda 2005 Savant talent PDF Developmental Medicine amp Child Neurology 47 7 500 503 doi 10 1017 S0012162205000976 PMID 15991873 Archived PDF from the original on 2020 09 25 Retrieved 2020 08 29 Happe F Vital P May 2009 What aspects of autism predispose to talent Philosophical Transactions of the Royal Society of London Series B Biological Sciences The Economist 364 1522 1369 75 doi 10 1098 rstb 2008 0332 PMC 2677590 PMID 19528019 Archived from the original on April 19 2009 Retrieved April 16 2009 a b Baron Cohen S Ashwin E Ashwin C Tavassoli T Chakrabarti B May 2009 Talent in autism hyper systemizing hyper attention to detail and sensory hypersensitivity Philosophical Transactions of the Royal Society of London Series B Biological Sciences 364 1522 1377 83 doi 10 1098 rstb 2008 0337 PMC 2677592 PMID 19528020 Mottron L Dawson M Soulieres I May 2009 Enhanced perception in savant syndrome patterns structure and creativity Philosophical Transactions of the Royal Society of London Series B Biological Sciences 364 1522 1385 91 doi 10 1098 rstb 2008 0333 PMC 2677591 PMID 19528021 Snyder A May 2009 Explaining and inducing savant skills privileged access to lower level less processed information Philosophical Transactions of the Royal Society of London Series B Biological Sciences The Economist 364 1522 1399 405 doi 10 1098 rstb 2008 0290 PMC 2677578 PMID 19528023 Archived from the original on April 19 2009 Retrieved April 16 2009 Snyder A May 2009 Explaining and inducing savant skills privileged access to lower level less processed information Philosophical Transactions of the Royal Society of London Series B Biological Sciences 364 1522 1399 405 doi 10 1098 rstb 2008 0290 PMC 2677578 PMID 19528023 a b Hiles Dave 2001 Savant Syndrome De Montfort University Archived from the original on 2012 10 25 Retrieved 2012 10 06 Howlin P Goode S Hutton J Rutter M May 2009 Savant skills in autism psychometric approaches and parental reports Philosophical Transactions of the Royal Society of London Series B Biological Sciences The Economist 364 1522 1359 67 doi 10 1098 rstb 2008 0328 PMC 2677586 PMID 19528018 Archived from the original on April 19 2009 Retrieved April 16 2009 Yant Kinney M 2012 08 20 An artist is born after car crash The Inquirer Philadelphia Archived from the original on 2013 01 31 Retrieved 2012 11 24 A ski accident left me with advanced mental abilities US woman tells her extraordinary story Daily Telegraph 17 April 2015 Archived from the original on 25 September 2020 Retrieved 5 April 2018 Treffert Darold A Visual Feast Archived 2020 09 25 at the Wayback Machine Newschaffer CJ Croen LA Daniels J Giarelli E Grether JK Levy SE Mandell DS Miller LA Pinto Martin J Reaven J Reynolds AM Rice CE Schendel D Windham GC 2007 The epidemiology of autism spectrum disorders Annual Review of Public Health 28 235 58 doi 10 1146 annurev publhealth 28 021406 144007 PMID 17367287 McGowan Kat March 13 2013 Exploring Temple Grandin s Brain Archived from the original on September 25 2020 Retrieved June 20 2018 a href Template Cite book html title Template Cite book cite book a work ignored help The Physics of Success UC Davis Stories March 23 2016 Archived from the original on September 29 2021 Retrieved August 6 2022 Badcock Christopher 2009 The Imprinted Brain How Genes Set the Balance Between Autism and Psychosis London Jessica Kingsley p 29 ISBN 9781849050234 Archived from the original on 2021 08 18 Retrieved 2020 10 28 Retrieved from https en wikipedia org w index php title Savant syndrome amp oldid 1171354527, wikipedia, wiki, book, books, library,

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