Cross-Frequency Coupling in Neural Oscillations
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Brain oscillations play important roles in the product of normal brain function, and not only one but several rhythms are involved in it. How these rhythmic activities interact has been a hot research topic in electrophysiological studies. A series of studies have found that interaction between different rhythms is associated with cognitive processes. This chapter will present the related information to introduce the cross-frequency methods.
An application of cross-frequency coupling was given to explore the speech perception in children. The results provided neuroanatomical evidence for theories of speech perception allowing for top-down feedback connections and also provided insight into children’s speech perception development. It indicated that the interaction of different oscillatory activities could be exploited to investigate the bottom-up and top-down mechanisms in speech perception.