transistor to attenuate?

hello.

When voltage is applied to the base of a transistor the path for the connected circuit becomes less resistant.

I wonder is there a way to do the opposite of this ? So that when you apply energy to a base more resistance is applied to the circuit... and when you apply less energy to a base the circuit becomes less resistant?

just like the opposite of a 2n2222 I am using on my breadboard?

thanks for thoughts : )

I thinks an PNP will do. oops, i forgot .

where is the embarrassed smiles face.?