A two-channel head mount was implanted on the skull of PV::CrTfl+/y (n = 18) and 18 PV::CrTfl−/y (n = 18) mice, at least two days after IOS imaging. EEG was recorded using a preamplifier connected to a data acquisition system and Sirenia Software 1.7.9 (Pinnacle Technology). We evaluated spontaneous (baseline) cortical activity for 24 h, before assessing the effects of kainic acid (KA; intraperitoneal injection, 10 mg/kg). To quantify seizure episodes, we used Sirenia Seizure Pro 1.8.4 [29 (link)]. A two-tailed t-test and χ2 test were used to assess differences between groups.
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