Quantum mechanics offers features like non-locality and indeterminacy that align with properties of consciousness, such as unity and irreducibility, which classical physics cannot accommodate. Four contemporary quantum approaches to consciousness are examined: the Eccles-Beck, Stapp, Penrose-Hameroff, and Avicenna-Bohm theories, each rooted in distinct metaphysical principles. The article argues that all scientific theories depend on the worldview of their proponents. It concludes by discussing Top-Down Causation as a promising philosophical framework for understanding the mind-brain relation and quantum consciousness.
A model and mechanism for mind-brain interaction is proposed, combining extended Bohmian quantum mechanics with Avicenna's philosophical ideas. The model shows that mind and mental states can affect brain activity without violating physical laws. It is a mathematical and descriptive model offering a causal account of mind's effect on matter. The model respects realistic philosophical constraints, aligns with Libet-style experimental results and parapsychological data, and is derived from a modified non-unitary Schrödinger equation obtained via second quantization. Three methods for extending Bohmian QM through path integral formalism are presented, with numerical simulations of two-slits experiment trajectories distinguishing them, and one method chosen as the basis for the mind-brain model.