12.07.2015 Views

Untitled - scienzaefilosofia.it

Untitled - scienzaefilosofia.it

Untitled - scienzaefilosofia.it

SHOW MORE
SHOW LESS
  • No tags were found...

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

S&F_n. 5_2011UMBERTO DI PORZIOIL CERVELLO DAL DI DENTROAbstract 1. Il cervello: questo sconosciuto 2. Il cervello visto da dentro3. Il connettoma: ovvero il cervello mappato 4. Questioni eticheThe mind is an enchanting thingis an enchanted thinglike the glaze on a katydid‐wingsubdivided by suntill the nettings are legion.Like Gieseking playing Scarlatti;like the apteryx‐awlas a beak, or the kiwi's rain‐shawlof haired feathers, the mindfeeling <strong>it</strong>s way as though blind,walks w<strong>it</strong>h <strong>it</strong>s eyes on the ground * .AbstractThe functional magneticresonance imaging (fMRI)techniques are a potentprobe able to visualizebrain functions, byanalyzing modificationof blood oxygenation,and see the action inspecific brain areas inresponse to activ<strong>it</strong>y orthoughts.fMRI thus promise to bea formidable tool not only to draw a new cartography of brain functional areas,but also a new tool to understand some aspects of brain function’s evolution,as well to get insights and to breach the wall into cogn<strong>it</strong>ion, moral<strong>it</strong>y andconsciousness.Nevertheless fMRI is not deprived of p<strong>it</strong>falls such as lim<strong>it</strong>ation in spatialaccuracy, reliable reproducibil<strong>it</strong>y of brain scan amongst different individualsor in the same person at different stages of life ( age or health versusdisease), the different time scale of fMRI measurements (seconds) and neuron’saction potentials (milliseconds). Thus often caution is required in theappreciation of fMRI results and conclusions, that could lead to incorrectinterpretation of brain signals and induce to draw spurious conclusions.New applications combining fMRI and real time visualization of one's own brainactiv<strong>it</strong>y in healthy volunteers or patients promise to enable individuals tomodify brain response and thus therapeutically or w<strong>it</strong>h other goals intervene inmodifying individual behaviors.Specially this last aspect, as well as the concern about the confidential<strong>it</strong>yand storage of sensible information or forensic uses of such approaches, raisesthe problem of mind privacy and new ethical questions.* Marianne Moore (1887‐1972): La mente è una cosa incantevole, è una cosa incantata, /come losmalto sopra/ un’ala di locusta, /suddiviso dal sole /finché le trame sono una legione. /ComeGieseking che suona Scarlatti; /come il punteruolo che l’apteryx/ ha per becco, oppure come /loscialle da pioggia del kivi, /fatto di piume filiformi, la mente/ avverte la sua strada come fossecieca/ e cammina tenendo gli occhi a terra.63

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!