A, representative whole-cell currents evoked by focal application of GABA receptor agonists, GABA, baclofen and taurine, recorded from the same dissociated neurone with equimolar internal and external Cl− concentrations. B, muscimol-evoked currents inhibited by co-application of either bicuculline (Bic) or picrotoxin (PicTx). Holding potential, −60 mV, A and B P3.