Low-dose ketamine tilts the cortical excitation--inhibition balance irrespective of systemic physiological response
Non-invasive proxies of cortical excitation--inhibition (E:I) balance, are increasingly used to understand human neural dynamics; especially so the aperiodic (1/f) electroencephalographic (EEG) exponent. Ketamine, an NMDA-receptor antagonist, is thought to shift this balance toward excitation. Propofol, a GABAA-receptor agonist, should behave oppositely. Here we show that these pharmacological…
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