  The response of a test particle, both for the free case and under the
harmonic oscillator potential, to circularly polarized gravitational waves is
investigated in a noncommutative quantum mechanical setting. The system is
quantized following the prescription in \cite{ncgw1}. Standard algebraic
techniques are then employed to solve the Hamiltonian of the system. The
solutions, in both cases, show signatures of the coordinate noncommutativity.
In the harmonic oscillator case, this signature plays a key role in altering
the resonance point and the oscillation frequency of the system.
