Sweet Dreams

In the years since Daniel Dennett's influential Consciousness Explained was published in 1991, scientific research on consciousness has been a hotly contested battleground of rival theories—"so rambunctious," Dennett observes, "that several people are writing books just about the tumult." With Sweet Dreams, Dennett returns to the subject for "revision and renewal" of his theory of consciousness, taking into account major empirical advances in the field since 1991 as well as recent theoretical challenges.

In Consciousness Explained, Dennett proposed to replace the ubiquitous but bankrupt Cartesian Theater model (which posits a privileged place in the brain where "it all comes together" for the magic show of consciousness) with the Multiple Drafts Model. Drawing on psychology, cognitive neuroscience, and artificial intelligence, he asserted…