Fig. 2.

A continuum of glutamate receptors exist at mossy fiber–interneuron synapses. A schematic illustrating the typical synapses that make up the population of mossy fiber–interneuron connections. Typically, GluR2-lacking Ca²⁺-permeable (CP) AMPA receptors are found at synapses also populated with NR2B-containing NMDA receptors. At the other end of the continuum is a population of synapses that contain GluR2-containign, CP-AMPA receptors together with NR2B-lacking NMDA receptors. Figure modified and reproduced with permission from Bischofberger and Jonas (2002).