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. Author manuscript; available in PMC: 2018 Jan 15.
Published in final edited form as: Ultrasound Med Biol. 2016 May 13;42(8):1834–1847. doi: 10.1016/j.ultrasmedbio.2016.02.020

Figure 2. Schematic of ultrasound protocol.

Figure 2

In purple we show constant wave (CW) ultrasound pulses each lasting for 200 µs based on a 2 MHz carrier frequency and a pulse repetition frequency (PRF) of 1050 Hz. This pattern lasts for one second, followed by a one second period with no ultrasound. This on/off period (in green) lasts for 100 repetitions (200 seconds) during which EEG is continuously recorded. This is immediately followed by a Beuthanasia injection lasting approximately 30 seconds followed immediately by continued ultrasound application and EEG recording as above for approximately 10 minutes (in red).