Figure 5.

Mitral/tufted cells ingle unit activity in P7 and mature rats. A, Spontaneous activity was significantly elevated in adult rats compared with cells in P7 rats. B, Odor-evoked activity induced significantly higher firing rates in mature rats compared with P7 cells. C, Single-unit activity was significantly more tightly in phase with respiration in P7 rats than cells in mature rats. D, Mitral/tufted cell single-unit odorant receptive fields to a homologous series of ethyl esters (150 ppm) were not significantly different between cells in P7 and mature rats. Asterisks indicate significantly greater mean spontaneous activity in mature rats. Error bars represent SE.