 Adam Wodeham disagrees with Ockham on this point; for him, there is no clear mark by which we can distinguish a true perception from a false one in the case of a deceptive God. Nevertheless, he holds that our perceptual process is generally reliable despite these problems. For more on Ockham and Wodeham, see especially Karger (2004), Panaccio and Piché (2010), and Wood (2003); Adams (1987) and Tachau (1988) also discuss their skeptical and anti-skeptical views.