Figure 3

Barrel network neurons and astrocytes show a dominant increment in responses to the frequency increase of paired whisker stimuli. A) shows two sequential Ca²⁺ signals at the barrel neurons (a trace per cell) in response to paired burst-stimili at 8-to-12Hz. B) The percentages of the three patterns among barrel network neurons (n=5 mice) in response to 8-to-12Hz stimuli show the increment in dominance. C) Ca²⁺ signals in astrocytes are evoked by the paired burst-stimuli (gray bars) in 8-to-12Hz. D) The increment in pair-responses (R1 versus R2) from astrocytes is dominant when the paired stimuli in 8-to-12Hz are given. E) The ratio of increment pattern to decrement patterns shows no significant difference between neuronal network and astrocytic network. Three asterisks indicate p<0.001, N.S. means no significant difference, student’st-test.