Noun perseveration has 2 senses

• perseveration(n = noun.cognition) Array - the tendency for a memory or idea to persist or recur without any apparent stimulus for it; Array
is a kind of disposition, inclination, tendency
Derived form verb persevere₁

• perseveration(n = noun.act) perseverance, persistence - the act of persisting or persevering; continuing or repeating behavior; "his perseveration continued to the point where it was no longer appropriate"
is a kind of continuance, continuation
Derived forms verb perseverate₁, verb persevere₁