Usebenza ngokukhethekileyo kwimpahla yangaphandle enobubele ukusukela ngo-1975, Penfield ibonisa enye ingqokelela ekhawulezayo esebenzayo kunye nesitayile. Ngowama-2014 entwasahlobo/ehlotyeni, umgca obanzi wakhiwe malunga nezinto ezisetyenziswayo ezingaphelelwa lixesha njengepaki kunye ne-anorak, efumana ukulungiswa kweemibala eziqaqambileyo kunye noyilo lwebhloko yombala ongqindilili. Iibhulukhwe ezimfutshane, izikipa, iijezi kunye neehempe eziqhotyoshelweyo zoba imidlalo yeentyatyambo, iipaisley kunye neprints zecamo, ezithi zingene kuluhlu lwezixhobo eziluncedo, ezifana nekepusi yenkampu, umnqwazi webhakethi kunye nerakhi. Ijikelezwe luluhlu oludityanisiweyo lweempahla ezinithiweyo ngeengokuhlwa ezipholileyo, uPenfield wamkela iinyanga zasehlotyeni ngengqokelela yamehlo.
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