Figure 4.
Hypercapnic response across brain states. EEG (nCTX and HPC) and EMG (DIA, GG, and ABD; raw traces in gray; rectified and integrated EMG traces in black) in control (left) and during hypercapnia (5% CO2 in air; right) during REM-like, transition, and nREM-like epochs. Note the state-dependent potentiation of GGEMG and ABDEMG activity in hypercapnia (n = 8).