A review of Savant Syndrome and its possible relationship to epilepsy

被引:10
作者
Hughes, John R. [1 ]
机构
[1] Univ Illinois, Med Ctr Chicago, Dept Neurol, Chicago, IL 60612 USA
关键词
Savant; Seizures; Epilepsy; Calculators; Frontotemporal dementia; Right hemisphere; Central coherence; Connectivity; UNUSUAL MECHANICAL ABILITY; IDIOT-SAVANT; AUTISTIC SAVANT; CALENDRICAL CALCULATORS; CALENDAR CALCULATOR; GRAPHIC ABILITIES; MEMORY; SKILLS; ARTISTS; PERCEPTION;
D O I
10.1016/j.yebeh.2009.12.014
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
The goal of this article is to review Savant Syndrome, characterized by outstanding islands of mental ability Ill otherwise handicapped individuals Two forms exist the congenital form and the acquired form. Among the many examples of the congenital form are the calendar calculators, who can quickly provide the day of the week for any date in the past, the musical savants, who have perfect pitch, and the hyperlexics. who (in one case) can read a page in 8 s and recall the text later at a 99% level Other types of talents and artistic skills involving three-dimensional drawing, map memory, poetry, painting, and sculpturing ate also observed One savant could recite without error the value of Pt to 22,514 places Persons with the acquired form develop outstanding skills after brain injury or disease, usually involving the left frontotemporal area This type of Injury seems to Inhibit the "tyranny of the left hemisphere," allowing the right hemisphere to develop the savant skills Another way to inhibit the left frontotemporal area IS to use transcranial magnetic stimulation in normal subjects, nearly one-half of these subjects can then perform new skills during the stimulation that they could not perform before This type of finding indicates the potential ill all of us for the development of savant skills in special circumstances Explanations of congenital Savant Syndrome include enhanced local connectivity as a compensation for underconnectivity of long-range fibers, but also weak central coherence, replaced by great attention to detail, enhanced perceptual functioning, and obsessive preoccupation with specific interests (C) 2009 Elsevier Inc All rights reserved
引用
收藏
页码:147 / 152
页数:6
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