In some neurons, the autaptic currents were further tested with 10 μm tubocurarine or 10 μm bicuculline, and we found that the ... 5 μm tubocurarine, 25 μm AP-5, 10 μm atropine). Of five fast-firing glutamatergic neurons tested, two exhibited spontaneous ... tubocurarine (5 μm), AP-5 (25 μm), and atropine (10 μm). ... DNQX and tubocurarine: 5 cells, 96.7 ± 2.3% normalized to DNQX ... tubocurarine (10 μm), and/or bicuculline methiodide/chloride (10 μm). ...