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. 2019 Nov 29;222(23):jeb207787. doi: 10.1242/jeb.207787

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© 2019. Published by The Company of Biologists Ltd

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Fig. 2. — How to deliver odorant stimuli with naturalistic statistics. (A) Schematic of delivery system. (B) Probability density functions (pdfs) for target whiff amplitude and blank durations. (C) Flash response of device. (D) Odorant concentration (red) in response to MFC ansatz (blue). Right panel shows correlation between measured whiff amplitudes and desired whiff amplitudes. (E) Odorant signal after ten rounds of optimization. (F) Final stimulus showing reproducibility over 10 trials (inset). (G) Coefficient of variation (CV) of whiff amplitude vs whiff peak. MFC, mass flow controller.