The consideration of time or dynamics is fundamental for all aspects of mentalactivity--perception, cognition, and emotion--because the main feature of brain activity is thecontinuous change of the underlying brain states even in a constant environment. The application ofnonlinear dynamics to the study of brain activity began to flourish in the 1990s when combined withempirical observations from modern morphological and physiological observations. This book offersperspectives on brain dynamics that draw on the latest advances in research in the field. Itincludes contributions from both theoreticians and experimentalists, offering an eclectic treatmentof fundamental issues. Topics addressed range from experimental and computational approaches totransient brain dynamics to the free-energy principle as a global brain theory. The book concludeswith a short but rigorous guide to modern nonlinear dynamics and their application to neuraldynamics.