Since I don’t personally know
anyone with a brain injury or disorder, this week I turn instead to the
fascinating case of Derek Paravicini.
Derek is perhaps the archetypal idiot savant: he is a prodigiously
gifted musician who, while being extraordinarily adept at the piano and possessing
an exceptional ear for music, otherwise suffers extreme cognitive and motor
impairments.
Derek
is fascinating primarily for the duality of his condition and what it offers to
the curious neuroscientist. His most notable
gift is his impeccable ear and seemingly endless ability to assimilate musical
idioms. He can reportedly recall from
memory any piece he has ever heard and play it on piano. Even more astounding, he can interpret the
pieces he plays dynamically, taking audience requests and reinterpreting, say, “The
Girl from Ipanema” as a Beethoven scherzo.
Furthermore, he has the fine motor control necessary to play the
panorama of pieces in his repertoire and the requisite working memory to
remember how to play them.
Of
course, these incredible gifts come at a severe cognitive cost. Derek is blind and severely mentally
disabled, showing an inability to remember his own age or even count
properly. More curiously, while he
displays the precise motor control necessary to play piano exquisitely, he
lacks the ability to perform simple tasks like buttoning the buttons on his
shirt.
It
would of course be intriguing to see the inner workings of Derek’s brain to
determine the neurological correlates of both his severe deficits and
exceptional talents. Would his
prefrontal cortex be less developed than his primary audio cortex, say? How would his primary motor strip be
affected? Sadly, these are as yet
questions to which I can only speculate.
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