o - Expression ists ▁in ▁the ▁ 1 9 8 0 s , ▁but ▁a ▁ 1 9 9 9 ▁show ▁at ▁the ▁Ser pent ine ▁Gallery ▁of ▁her ▁early ▁paint ings ▁triggered ▁a ▁res urg ence ▁of ▁interest ▁in ▁her ▁optical ▁experiments . ▁" B rid get ▁R iley : ▁Re con na issance ", ▁an ▁exhibition ▁of ▁paint ings ▁from ▁the ▁ 1 9 6 0 s ▁and ▁ 1 9 7 0 s , ▁was ▁presented ▁at ▁Dia : Ch else a ▁in ▁ 2 0 0 0 . ▁In ▁ 2 0 0 1 , ▁she ▁participated ▁in ▁Site ▁Santa ▁Fe , ▁and ▁in ▁ 2 0 0 3 ▁the ▁T ate ▁Britain ▁organ ised ▁a ▁major ▁R iley ▁ret ros pective . ▁In ▁ 2 0 0 5 , ▁her ▁work ▁was ▁featured ▁at ▁Gallery ▁Old ham . ▁Between ▁November ▁ 2 0 1 0 ▁and ▁May ▁ 2 0 1 1 , ▁her ▁exhibition ▁" Paint ings ▁and ▁Rel ated ▁Work " ▁was ▁presented ▁at ▁the ▁National ▁Gallery , ▁London . ▁ ▁In ▁June ▁and ▁July ▁ 2 0 1 4 , ▁the ▁ret ros pective ▁show ▁" B rid get ▁R iley : ▁The ▁St ri pe ▁P aint ings ▁ 1 9 6 1 – 2 0 1 4 " ▁was ▁presented ▁at ▁the ▁David ▁Zw ir ner ▁Gallery ▁in ▁London . ▁In ▁July ▁and ▁August ▁ 2 0 1 5 , ▁the ▁ret ros pective ▁show ▁" B rid get ▁R iley : ▁The