or ▁after - effect ▁which ▁rep licates ▁the ▁post ure ▁we ▁adopt ▁when ▁walking ▁onto ▁a ▁moving ▁platform ▁to ▁stabil ise ▁ourselves . ▁This ▁after - effect ▁was ▁studied ▁by ▁ ▁Ad ol fo ▁Bron stein ▁and ▁Raymond ▁Reyn olds ▁in ▁an ▁experiment ▁published ▁in ▁ 2 0 0 3 , ▁then ▁expl ored ▁even ▁further ▁through ▁a ▁series ▁of ▁additional ▁experiments ▁by ▁Bron stein ▁and ▁associ ates . ▁ ▁Initial ▁experiment ▁Bron stein ▁and ▁Reyn olds ' ▁initial ▁experiment ▁attempted ▁to ▁reproduce ▁the ▁conditions ▁of ▁the ▁broken ▁es cal ator ▁phenomen on ▁by ▁asking ▁subjects ▁to ▁walk ▁onto ▁a ▁station ary ▁s led ▁( BE FO RE ▁tri als ), ▁then ▁walk ▁onto ▁it ▁while ▁it ▁was ▁moving ▁( MO V ING ▁tri als ), ▁and ▁finally ▁once ▁again ▁while ▁it ▁was ▁station ary ▁( AF TER ▁tri als ). ▁Sub ject s ▁all ▁experienced ▁an ▁after - effect ▁when ▁walking ▁onto ▁the ▁station ary ▁s led ▁in ▁the ▁AF TER ▁tri als , ▁character ised ▁by ▁a ▁forward ▁s way ▁of ▁the ▁tor so , ▁increased ▁walking ▁speed ▁and ▁increased ▁mus cular ▁leg ▁activity ▁( me as ured ▁with ▁EM G ) ▁compared ▁to ▁the ▁BE FO RE ▁condition . ▁All ▁subjects ▁expressed ▁surprise ▁at ▁their ▁behaviour ▁and ▁compared ▁the ▁experience ▁to ▁that ▁of ▁walking ▁onto ▁an ▁out - of - order ▁es cal ator . ▁ ▁Motor ▁adaptation ▁The ▁after - effect ▁was ▁found ▁to ▁be ▁a ▁direct ▁consequence ▁of ▁motor ▁adaptation . ▁When ▁facing ▁an ▁external ▁threat ▁to ▁our