Fig. 5. Comparison of glutamate concentrations sensed by NMDAR (solid line) with those in the superfusates in the co-expressing oocytes. The dashed line refers to the situation that when the glutamate concentrations sensed by NMDAR equal to the glutamate concentrations in the superfusates. The sensed glutamate concentrations are calculated based on equation (1). Results are means ±S.D. of sensed glutamate concentrations (N=12).