Ripples reflect a spectrum of synchronous spiking activity in human anterior temporal lobe

Ai Phuong Tong, Alex Vaz, John Wittig, Sara Inati & Kareem Zaghloul
Direct brain recordings have provided important insights into how high-frequency activity captured through intracranial EEG (iEEG) supports human memory retrieval. The extent to which such activity is comprised of transient fluctuations that reflect the dynamic coordination of underlying neurons, however, remains unclear. Here, we simultaneously record iEEG, local field potential (LFP), and single unit activity in the human temporal cortex. We demonstrate that fast oscillations within the previously identified 80–120 Hz ripple band contribute to...
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