dentify the three principal neural networks underlying intrinsic connectivity.Default mode network $($DMN$),$ salience network $($SN$),$ central$-$executive network $($CEN$)$Implicit salience network $($ISN$),$ explicit mode network $($EMN$),$ central$-$executive network $($CEN$)$Central$-$executive salience network $($CESN$),$ frontal$-$parietal network $($FPN$),$ explicit mode network $($EMN$),$ implicit salience network $($ISN$)$Default salience network $($DSN$),$ implicit mode network $($IMN$),$ central$-$executive salience network $($CESN$)$