This　study　reports　on　the　driving　behavior　changes　and　drivers＇　neural　activation　modifications　as　a　response　to　information　stimulation　in　the　form　of　tunnel-decorated　interior　walls　during　simulated　driving,　revealing　the　underlying　mechanisms　of　action.　35　participants　performed　a　simulation　experiment　consisting　of　a　driving　simulator　experiment　(29　participants)　and　an　fMRI　experiment　(30　participants,　including　24　participants　duplicated　across　both　experiments).　The　study　protocol　consisted　of　two　scenarios　(a　baseline　and　a　decorated　interior　wall　scenario)　in　which　participants　performed　the　baseline　scenario　to　initiate　the　first　testing.　The　driving　behavior　data　(drivers＇　attention　and　mental　workload,　longitudinal　speed　regulation,　and　lateral　control　stability)　and　drivers＇　neural　activation　data　were　recorded　and　analyzed　for　the　whole　experimental　session.　This　study　used　repeated　measures　generalized　linear　models　(GLM)　and　Statistical　Parameter　Mapping　(SPM12)　platforms　for　statistical　analysis.　The　results　indicate　that:　1)　a　decorated　interior　wall　does　affect　drivers＇　attention　and　mental　workload　significantly,　and　drivers＇　boredom,　psychological　burden,　and　crash　risk　are　reduced　under　the　information　stimulus.　The　color　and　element　complexity　of　decorated　interior　tunnel　walls　constitute　crucial　factors　in　this　information　regulation　mechanism,　strongly　related　to　driver　distraction;　2)　Under　the　influence　of　tunnel　interior　walls　decorated　with　longitudinal　strips,　the　driver＇s　spatial　perception　and　imagination　are　significantly　improved,　reducing　anxiety　and　fear　associated　with　hitting　the　interior　walls.　The　lateral　stability　of　vehicle　operation　is　improved;　however,　compared　with　vertical　stripes　decoration,　the　effect　of　the　tunnel　interior　wall　decorated　with　horizontal　stripes　on　drivers＇　speed　regulation　is　not　great.