ional ▁report ▁card , ▁about ▁actions ▁that ▁are ▁already ▁in ▁their ▁re per toire ▁of ▁hab its ." ▁That ▁is , ▁the ▁first ▁system ▁is ▁that ▁which ▁mon itors ▁the ▁cas ual ▁processing ▁of ▁political ▁information ▁through ▁habit , ▁through ▁which ▁most ▁of ▁our ▁information ▁processing ▁is ▁done . ▁ ▁The ▁second ▁system , ▁the ▁surve ill ance ▁system , ▁" act s ▁to ▁scan ▁the ▁environment ▁for ▁novel ty ▁and ▁sudden ▁intr usion ▁of ▁threat ." ▁ ▁In ▁other ▁words , ▁the ▁second ▁system ▁mon itors ▁the ▁environment ▁for ▁any ▁signs ▁of ▁threat . ▁If ▁a ▁threat ▁is ▁found , ▁that ▁system ▁takes ▁people ▁out ▁of ▁habit ual , ▁cas ual ▁processing ▁and ▁puts ▁them ▁in ▁a ▁state ▁of ▁alert ness ▁and ▁re cept ivity ▁to ▁new ▁information : ▁ ▁" what ▁is ▁interesting ▁about ▁this ▁second ▁emot ional ▁system ▁is ▁that ▁the ▁on set ▁of ▁increased ▁anx iety ▁stops ▁on going ▁activity ▁and ▁orient s ▁attention ▁to ▁the ▁threaten ing ▁appearance ▁so ▁that ▁learning ▁can ▁take ▁place . ▁[...] ▁when ▁the ▁system ▁detect s ▁unexpected ▁of ▁threaten ing ▁stim uli , ▁however , ▁it ▁ev okes ▁increased ▁anx iety , ▁it ▁interrupt s ▁on going ▁activity , ▁and ▁it ▁sh ifts ▁attention ▁away ▁from ▁the ▁previous ▁focus ▁and ▁toward ▁the ▁intr us ive ▁stim uli ." ▁▁ ▁Marcus ▁further ▁arg ues ▁that ▁" em ot ional ▁eng agement ▁will ▁motiv ate ▁people ▁toward ▁making ▁more ▁deeply ▁reason ed ▁dec isions ▁about ▁politics ▁than ▁those ▁who ▁remain ▁dis pass ion ate ."