{"id":3818,"date":"2021-01-22T18:00:00","date_gmt":"2021-01-22T17:00:00","guid":{"rendered":"https:\/\/www.rivistazoom.it\/?p=3818"},"modified":"2021-01-22T15:38:44","modified_gmt":"2021-01-22T14:38:44","slug":"esiste-anche-se-non-si-vede","status":"publish","type":"post","link":"https:\/\/www.rivistazoom.it\/index.php\/2021\/01\/22\/esiste-anche-se-non-si-vede\/","title":{"rendered":"Esiste anche se non si vede."},"content":{"rendered":"\n<p>Le quattro immagini proposte rappresentano delle immagini PET, acronimo che indica la tecnica diagnostica medica nota come tomografia ad emissione di positroni, che comparano il cervello di un individuo con una specifica patologia con il cervello di un individuo che non la presenta. <\/p>\n\n\n\n<p>La PET \u00e8 una tra le tecniche di neuroimaging funzionale (si definisce \u2018funzionale\u2019 perch\u00e9 il suo scopo \u00e8 appunto studiare come funziona l\u2019organo studiato e in questo caso il cervello) pi\u00f9 utilizzata e attraverso cui possiamo osservare come il cervello varia a livello metabolico (quindi potendo osservare dove lavora e funziona di pi\u00f9) mentre esegue determinate azioni. Di conseguenza, pi\u00f9 il colore \u00e8 acceso (tendente al rosso) pi\u00f9 c\u2019\u00e8 attivit\u00e0 funzionale in quella zona del cervello: nella depressione vediamo esserci una diminuzione di attivit\u00e0 generale; nel disturbo post traumatico da stress vediamo un aumentato numero di recettori mGLUR5 (recettori eccitatori del glutammato); nel disturbo bipolare notiamo invece un incremento di attivit\u00e0 e consumo di glucosio; nel deficit di attenzione e iperattivit\u00e0 possiamo osservare livelli minori di trasportatori della dopamina rispetto ad un soggetto di controllo.&nbsp;<\/p>\n\n\n\n<p>Questi dati dovrebbero farci riflettere sul fatto che anche se non vediamo una cosa questa non significa che non esista: troppo spesso \u2013 purtroppo &#8211; le persone con determinati problemi mentali vengono discriminate, o il loro problema viene sminuito perch\u00e9 non capito, o perch\u00e9 difficilmente osservabile ad occhio nudo.<\/p>\n\n\n\n<p>Fonte delle foto e del riferimento bibliografico<\/p>\n\n\n\n<ul><li>Pul C,&#8221; The Special Case of Bipolar Disorder&#8221;, Springer Link, 2016; &#8220;Invisible Disabilities: The Pathology of ADHD and Autism, Darmouth Undergraduate Journal of Science, 2009; Billie Hataway, &#8220;New PTSD study identifies potential path to treatment&#8221;, Yale University, 2017; Mark George, NIMH, 1993<\/li><li>Pagina Facebook \u201cPsyched\u201d<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"639\" height=\"638\" src=\"https:\/\/www.rivistazoom.it\/wp-content\/uploads\/2021\/01\/Immagine.png\" alt=\"\" class=\"wp-image-3822\" srcset=\"https:\/\/www.rivistazoom.it\/wp-content\/uploads\/2021\/01\/Immagine.png 639w, https:\/\/www.rivistazoom.it\/wp-content\/uploads\/2021\/01\/Immagine-300x300.png 300w, https:\/\/www.rivistazoom.it\/wp-content\/uploads\/2021\/01\/Immagine-150x150.png 150w\" sizes=\"(max-width: 639px) 100vw, 639px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"638\" height=\"639\" src=\"https:\/\/www.rivistazoom.it\/wp-content\/uploads\/2021\/01\/2.png\" alt=\"\" class=\"wp-image-3819\" srcset=\"https:\/\/www.rivistazoom.it\/wp-content\/uploads\/2021\/01\/2.png 638w, https:\/\/www.rivistazoom.it\/wp-content\/uploads\/2021\/01\/2-300x300.png 300w, https:\/\/www.rivistazoom.it\/wp-content\/uploads\/2021\/01\/2-150x150.png 150w\" sizes=\"(max-width: 638px) 100vw, 638px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"632\" height=\"636\" src=\"https:\/\/www.rivistazoom.it\/wp-content\/uploads\/2021\/01\/3.png\" alt=\"\" class=\"wp-image-3820\" srcset=\"https:\/\/www.rivistazoom.it\/wp-content\/uploads\/2021\/01\/3.png 632w, https:\/\/www.rivistazoom.it\/wp-content\/uploads\/2021\/01\/3-298x300.png 298w, https:\/\/www.rivistazoom.it\/wp-content\/uploads\/2021\/01\/3-150x150.png 150w\" sizes=\"(max-width: 632px) 100vw, 632px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"637\" height=\"638\" src=\"https:\/\/www.rivistazoom.it\/wp-content\/uploads\/2021\/01\/4.png\" alt=\"\" class=\"wp-image-3821\" srcset=\"https:\/\/www.rivistazoom.it\/wp-content\/uploads\/2021\/01\/4.png 637w, https:\/\/www.rivistazoom.it\/wp-content\/uploads\/2021\/01\/4-300x300.png 300w, https:\/\/www.rivistazoom.it\/wp-content\/uploads\/2021\/01\/4-150x150.png 150w\" sizes=\"(max-width: 637px) 100vw, 637px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-right\">Articolo a cura di Rosario Cassaniti<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le quattro immagini proposte rappresentano delle immagini PET, acronimo che indica la tecnica diagnostica medica nota come tomografia ad emissione<\/p>\n<div class='the_champ_sharing_container the_champ_vertical_sharing the_champ_hide_sharing the_champ_bottom_sharing' style='width:44px;left: -10px;top: 100px;-webkit-box-shadow:none;box-shadow:none;' 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