Bi-Directional Oscillatory Interaction in the Neural Networks Engaged in Sentence Oral Reading

This study delves into the neural oscillatory dynamics accountable for the bidirectional interaction in oral sentence reading. Through a multifaceted methodology encompassing EEG, eye-tracking, and speech data analyses, it examines the functional networks related to visual processing, semantic interpretation, speech production, and auditory feedback. The key findings spotlight a rhythmic oscillatory architecture that synchronizes with the initiation of eye movements and speech articulation, characterized by specific temporal onsets. Theta-gamma coupling emerges as crucial in the neural synchronization process between visual stimuli and semantic interpretation, governing the interaction of bottom-up and top-down signals in both directions. Alpha and beta band inhibitory activity is also conspicuous, especially in the dorsal stream, which is involved in speech motor planning and execution. The delineated oscillatory profiles facilitate the bidirectional exchange of information between the ventral and dorsal streams, providing a holistic model for understanding the neural substrates of oral sentence reading.