▁it ▁is ▁taking ▁in ▁mult itudes ▁of ▁visual ▁information ▁at ▁once . ▁Bus se ▁first ▁showed ▁both ▁spatial ▁and ▁feature - based ▁influ ences ▁of ▁ex ogen ous ▁c ue ing ▁on ▁motion ▁processing . ▁Aut onom ic ▁sh ifts ▁in ▁attention , ▁driven ▁by ▁ex ogen ous ▁c ue ing , ▁appeared ▁to ▁be ▁integr ally ▁driven ▁by ▁characteristic ▁mod ulations ▁of ▁sens ory ▁processing . ▁Bus se ▁then ▁expl ored ▁how ▁cogn itive ▁attention ▁in ▁mac a ques ▁changes ▁the ▁neural ▁representation ▁of ▁motion ▁information . ▁Bus se ▁found ▁that ▁visual ▁attention ▁enh ances ▁the ▁sp atio - tem por al ▁structure ▁of ▁re cept ive ▁fields ▁for ▁moving ▁objects . ▁Bus se ▁completed ▁her ▁dis sert ation ▁in ▁ 2 0 0 8 , ▁showing ▁that ▁cogn itive ▁factors ▁have ▁strong ▁mod ul atory ▁effects ▁on ▁the ▁processing ▁of ▁visual ▁motion . ▁ ▁In ▁her ▁post do ctor al ▁studies , ▁Bus se ▁first ▁expl ored ▁visual ▁processing ▁in ▁the ▁primary ▁visual ▁cor tex ▁in ▁c ats . ▁Bus se ▁found ▁that ▁when ▁populations ▁of ▁neur ons ▁encode ▁multiple ▁stim uli ▁simultaneously , ▁a ▁model ▁of ▁contrast ▁normal ization ▁best ▁explains ▁how ▁neur ons ▁represent ▁multiple ▁stim uli ▁in ▁V 1 . ▁Ess entially , ▁the ▁population ▁response ▁can ▁be ▁described ▁as ▁a ▁weight ed ▁sum ▁of ▁the ▁individual ▁responses ▁to ▁the ▁components ▁of ▁the ▁visual ▁stim ulus . ▁Not ▁only ▁did ▁their ▁mod elling ▁of ▁normal ization ▁hold ▁in ▁c ats , ▁but ▁also ▁extended ▁to ▁record ings ▁from