Figure 4.
Manual whisker brushing for 2 h in Group B rats increased the number of TNF-IR cells in the Sctx of a stimulated (horizontal bar marks the stimulated column) but not in an adjacent unstimulated cortical columns (A). In this case a large increase in the number of TNF-IR cells was evident in the upper layers of the Sctx. For comparison, whisker stimulation increased the number of Fos-IR cells in an equivalent column of the Sctx in an adjacent section (B). Bar = 0.6 mm.