Cercetatorii de la Universitatea din Geneva, Elvetia, au realizat un studiu legat de influenta somnului asupra memoriei. Rezultatele acestuia arata ca odihna din timpul noptii poate fi cea mai buna metoda de a creste capacitatea memoriei.
Specialistii au descoperit ca somnul de noapte are un impact puternic asupra felului in care creierul functioneaza in urmatoarea zi. Mai exact, consolideaza legaturile dintre celulele nervoase, aspect foarte important in procesul de invatare si memorare.
La studiu au luat parte mai multi voluntari. Cativa au fost pusi sa urmareasca un punct care se misca pe un monitor, folosindu-se de un joystick, iar ceilalti au vizionat niste imagini, pe care li s-a spus sa le tina minte.
Unora dintre participanti li s-a dat voie sa se odihneasca 8 ore, in timp ce altora nu le-a fost permis sa doarma deloc sau au avut la dispozitie foarte putin timp pentru a se odihni. A doua zi, specialistii le-au cerut acestora sa repete sarcina sau sa isi aminteasca imaginile vazute cu o zi in urma, in timp ce creierele lor erau analizate cu ajutorul imagisticii prin rezonanta magnetica functionala. Cei care s-au odihnit 8 ore au avut cele mai bune rezultate, iar acest lucru a putut fi observat in activitatea inregistrata in creier.
Totusi, specialistii sunt de parere ca pentru a fi siguri de influenta benefica a somnului asupra creierului sunt necesare mai multe studii. ?n acest moment nu se cunoaste exact numarul de ore de somn necesare pentru un impact optim asupra organismului.
‘Acum vrem sa aflam cum afecteaza somnul dezordonat functiile emotionale si cognitive si care sunt factorii biologici responsabili de aceste efecte’, a declarat coordonatorul studiului, dr. Sophie Schwartz.
Doctorul Neil Stanley, specialist la Norfolk University Hospital, a adaugat: ‘Somnul nu este o pierdere de vreme, ci o perioada foarte activa. Avem nevoie de el pentru lucruri precum memorarea sau invatarea. Ziua primim informatii, iar noaptea le sortam’, a explicat el. l Mediafax
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