Correspondence between Descartes and Princess Elisabeth

The correspondence between René Descartes and Princess Elisabeth of Bohemia, edited by Jonathan Bennett. One of the main things that Elisabeth famously gives Descartes a hard time about is the problem of mental causation.

http://www.earlymoderntexts.com/pdf/descelis.pdf

Picturing mental causation

Some of the main proposals concerning the general structure of mental causation can be pictured in the following ways (from the Internet Encyclopedia of Philosophy entry on mental causation): 

Interactionism:


Parallelism:


Epiphenomenalism:


Reductionism: