Definition of "interactionist" [interactionist ]

• An adherent of the metaphysical theory of interactionism. (noun)
• Consonant to the metaphysical theory of interactionism.

The Century Dictionary (Public Domain)

• "The key development here is a switch from prior non-causal, parallelist views to a new causal, or "interactionist" interpretation that ascribes to inner experience an integral causal control role in brain function and behavior."
• "I'm reminded of David Chalmers '"Moving Forward on the Problem of Consciousness" where it's mentioned "It is interesting that philosophers reject interactionist dualism because they think it is incompatible with physics, whereas physicists reject the relevant interpretations of quantum mechanics because they are dualistic!""
• "Again: A dualist/interactionist believes that mental states are (at least sometimes) immaterial causes, so that we can have a change of mind without any associated change in our brain."