Conventional approaches to understanding consciousness are generally concer
ned with the contribution of specific brain areas or groups of neurons. By
contrast, it : is considered here what kinds of neural processes can accoun
t for key properties of conscious experience. Applying measures of neural i
ntegration and complexity, together with an analysis of extensive neurologi
cal data, leads to a testable proposal-the dynamic core hypothesis-about th
e properties of the neural substrate of consciousness.