▁number ▁of ▁faces ▁that ▁had ▁other ▁similar ▁faces . ▁ ▁C ues ▁act ▁as ▁gu ides ▁to ▁what ▁the ▁person ▁is ▁supposed ▁to ▁remember . ▁A ▁c ue ▁can ▁be ▁virt ually ▁anything ▁that ▁may ▁act ▁as ▁a ▁rem inder , ▁e . g . ▁a ▁sm ell , ▁song , ▁color , ▁place ▁etc . ▁In ▁contrast ▁to ▁free ▁recall , ▁the ▁subject ▁is ▁prompt ed ▁to ▁remember ▁a ▁certain ▁item ▁on ▁the ▁list ▁or ▁remember ▁the ▁list ▁in ▁a ▁certain ▁order . ▁C ued ▁recall ▁also ▁plays ▁into ▁free ▁recall ▁because ▁when ▁c ues ▁are ▁provided ▁to ▁a ▁subject , ▁they ▁will ▁remember ▁items ▁on ▁the ▁list ▁that ▁they ▁did ▁not ▁originally ▁recall ▁without ▁a ▁c ue . ▁Tul ving ▁explained ▁this ▁phenomen on ▁in ▁his ▁research . ▁When ▁he ▁gave ▁participants ▁associ ative ▁c ues ▁to ▁items ▁that ▁they ▁did ▁not ▁originally ▁recall ▁and ▁that ▁were ▁thought ▁to ▁be ▁lost ▁to ▁memory , ▁the ▁participants ▁were ▁able ▁to ▁recall ▁the ▁item . ▁ ▁Serial ▁recall ▁ ▁Serial ▁recall ▁is ▁the ▁ability ▁to ▁recall ▁items ▁or ▁events ▁in ▁the ▁order ▁in ▁which ▁they ▁occurred . ▁ ▁The ▁ability ▁of ▁humans ▁to ▁store ▁items ▁in ▁memory ▁and ▁recall ▁them ▁is ▁important ▁to ▁the ▁use ▁of ▁language . ▁ ▁Im agine ▁recall ing ▁the ▁different ▁parts ▁of ▁a ▁sentence , ▁but ▁in ▁the ▁wrong ▁order . ▁ ▁The ▁ability ▁to ▁recall ▁in ▁serial ▁order ▁has ▁been ▁found ▁not ▁only ▁in ▁humans , ▁but ▁in ▁a ▁number ▁of ▁non - human ▁prim ate ▁species