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Kinematical studies of AGN have been generally focused on
the gaseous component (ionised or mollecular gas).
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These studies have the potential of revealing the dynamical
forces that work on the gas closer to the active nucleus, but they can
not trace the gravitational potential.
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Moreover, the gas represents only a fraction of the total
mass of the galaxy and could be driven by non- gravitational perturbations.
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We also need to study the kinematical stellar behaviour.
The comparison of stellar and gas velocity field may reveal if kinematical
perturbations are related to the presence of the activity and/or to other
mechanisms (interactions, mergers, bars...).
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