> -bsVars 'condition*age+sex' \
> -wsVars 'contrasts'\
> -qVars 'age,motion' \

You didn't specify the variable 'motion' in the first two lines above. Maybe try the following

-bsVars 'condition*age+sex+motion' \
-wsVars 'contrasts'\
-qVars 'age,motion' \

Gang