TY - JOUR T1 - θ-Band Cortical Tracking of the Speech Envelope Shows the Linear Phase Property JF - eneuro JO - eNeuro DO - 10.1523/ENEURO.0058-21.2021 VL - 8 IS - 4 SP - ENEURO.0058-21.2021 AU - Jiajie Zou AU - Chuan Xu AU - Cheng Luo AU - Peiqing Jin AU - Jiaxin Gao AU - Jingqi Li AU - Jian Gao AU - Nai Ding AU - Benyan Luo Y1 - 2021/07/01 UR - http://www.eneuro.org/content/8/4/ENEURO.0058-21.2021.abstract N2 - When listening to speech, low-frequency cortical activity tracks the speech envelope. It remains controversial, however, whether such envelope-tracking neural activity reflects entrainment of neural oscillations or superposition of transient responses evoked by sound features. Recently, it is suggested that the phase of envelope-tracking activity can potentially distinguish entrained oscillations and evoked responses. Here, we analyze the phase of envelope-tracking in humans during passive listening, and observe that the phase lag between cortical activity and speech envelope tends to change linearly across frequency in the θ band (4–8 Hz), suggesting that the θ-band envelope-tracking activity can be readily modeled by evoked responses. ER -