▁cre ative ▁adult s ▁and ▁ad oles c ents ". ▁▁ ▁This ▁study ▁highlight ed ▁the ▁link ▁between ▁behav i ours ▁of ▁diver gent ▁thinking , ▁or ▁cre ativity , ▁in ▁play ful ness ▁during ▁child hood ▁and ▁those ▁displayed ▁in ▁later ▁years , ▁in ▁cre ative ▁ad oles c ents ▁and ▁adult s . ▁ ▁Future ▁research ▁opportun ities ▁in ▁this ▁area ▁could ▁explore ▁a ▁longitud inal ▁study ▁of ▁kind erg arten - aged ▁children ▁and ▁the ▁development ▁or ▁evolution ▁of ▁diver gent ▁thinking ▁ab ilities ▁throughout ▁ad oles c ence , ▁into ▁ad ul th ood , ▁in ▁order ▁to ▁subst anti ate ▁the ▁link ▁drawn ▁between ▁play ful ness ▁and ▁diver gent ▁thinking ▁in ▁later ▁life . ▁ ▁This ▁long - term ▁study ▁would ▁help ▁parents ▁and ▁teachers ▁identify ▁this ▁behaviour ▁( or ▁lack ▁there of ) ▁in ▁children , ▁specifically ▁at ▁an ▁age ▁when ▁it ▁can ▁be ▁rein for ced ▁if ▁already ▁displayed , ▁or ▁supported ▁if ▁not ▁yet ▁displayed . ▁ ▁Effect s ▁of ▁positive ▁and ▁negative ▁m ood ▁ ▁In ▁a ▁study ▁at ▁the ▁University ▁of ▁Ber gen , ▁Norway , ▁the ▁effects ▁of ▁positive ▁and ▁negative ▁m ood ▁on ▁diver gent - th inking ▁were ▁exam ined . ▁▁ ▁Near ly ▁two ▁hundred ▁art ▁and ▁psych ology ▁students ▁participated , ▁first ▁by ▁meas uring ▁their ▁m ood s ▁with ▁an ▁ad jective ▁check list ▁before ▁performing ▁the ▁required ▁tasks . ▁ ▁The ▁results ▁showed ▁a ▁clear ▁distinction ▁in ▁performance ▁between ▁those ▁with ▁a ▁self - report