AMPA receptor-mediated currents are not affected by MAM in either juveniles or adolescents. (a1 and a2) Sample traces (upper panels) and summary histograms (lower panels) of sEPSCs recorded at â70âmV in CA1 pyramidal neurons from juvenile (a1) adolescent (a2) saline and MAM-exposed animals. Summary graphs show no change in sEPSC frequency or amplitude with MAM exposure for juvenile (p=0.74, 0.48, respectively, saline n=7, MAM n=8) or adolescent animals (p=0.9, 0.5, respectively, saline, n=7, MAM n=9). (b1 and b2) Sample traces (upper panels) and summary histograms (lower panels) of mEPSCs recorded at â70âmV in the presence of TTX in CA1 pyramidal neurons from juvenile (b1) and adolescent (b2) saline- and MAM-exposed animals. MAM exposure did not alter the frequency or amplitude of mEPSCs for either age group (juveniles, p=0.55, 0.33, respectively, saline n=6, MAM, n=9; adolescent, p=0.7, 0.8, respectively, saline n=6, MAM n=7). These data indicate that there is no change in functional AMPARs at synapses in juvenile or adolescent MAM-exposed animals.