
Writing in response to a
report in Science by G. Schlaug concerning the brain asymmetry observed
in musicians with perfect or absolute pitch, O. Sacks expands the domain
of the phenomenon to include other human talents. Sacks says that perfect
pitch, though common in musicians, occurs only in about 1 of every 10,000
people. Among the autistic, however, the incidence rises to perhaps 1 in
20. He next moves on to "savants;" that is, individuals with exceptional
mathematic, mechanical, musical, and artistic talents, but with serious
deficiencies in other human attributes. Calculating prodigies and other
"idiot savants"
immediately
come to mind here. Sachs claims that perfect pitch is is even more common
among the savants. In fact, all muscial savants seem to have it. Perfect
pitch is also common among those with Williams syndrome, which he defines
as:
"a -- syndrome which predisposes to hyperacusis and exceptional development
of
auditory, musical, and verbal skills, combined with striking visual and
conceptual
deficits."
(Sacks, Oliver; "Musical
Ability," Science, 268:621, 1995.)