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Electroencephalograph of rats before and after dosing with ashwagandha extract (50 mg/kg body weight). Signal acquisition was carried out with BIOPAC MP-45 data acquisition unit and AcqKnowledge software (version 4.4, Biopac Systems, Inc.). Signals were filtered between 0.1 and 100.0 Hz and sampled at 200 Hz. The x-axis represents frequency in Hz, while the y-axis represents power in micro V2/Hz.
