January, 17, 2013
Next Time: Theories + NVB
Scan: Finish Chapter 10 + p. 424 – 428
o Savant Syndrome
o What causes savant syndrome?
o What are the symptoms of Autism?
o What is intelligence?
Need to know the IQ equation very good, it will be on the exam
o Galton: intelligence unitary sensory ability, “hard-wired”
o Binet: Intelligence multiplex experience, mental age
o Terman: Stanford-Binet, I.Q.
o Wchesler: WAIS – IV, deviation I.Q.
o Does test measure what it is supposed to?
o r with achievement
o Range: 0.3 to 0.7
o Is the test “culture-fair” or do the answers require specific knowledge available only to
certain (sub) cultures?
o More than “academic” question
o Dove (1958) “Chitterling test”
Requires specific knowledge based on culture and not know by everyone. So it is
very bias because some people has no idea what the correct answer is because
they never experienced/encountered before
What is intelligence?
o Dr. J.L. Down (1887)…
o “Idiot” was accepted category of mental retardation at the time
I.Q. < 25
o Excel in narrow range of abilities Lightning-fast math
Mechanical or spatial abilities
o Other reports of ability in
o Common: music + blind + autistic
o Can have multiple skills (not common)
o All seem to be right hemisphere
o All lined with phenomenal (but narrow) memory
o Very rare… less than 100 reports of prodigious ability
o Only 25 living savants
o 6 times more likely in males than in females
1. Eidetic Imaging
Perhaps savants have “photographic” memory
Calculations beyond published data
High % are blind
Early studies suggest family relationship
But recent data suggest “No”
1 in 23 relatives of 5 savants
3. Sensory Deprivation