Single prolonged stress alters neural activation in the periacqueductal gray and midline thalamic nuclei during emotional learning and memory

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Figure 5.
Figure 5.

Effect of SPS and emotional learning/memory on c-Fos and c-Jun levels in midline thalamic regions. (A) During FC c-Fos levels were enhanced in all midline thalamic regions, then decreased below baseline levels during ExtTrain and ExtTest. During ExtTrain this decrease was lower in SPS rats in comparison to control rats in the PVT, mHab, and RE. SPS lowered normalized c-Fos levels in the Rh during FC, ExtTrain, and ExtTest. Y-axes for normalized c-Fos values are split to visualize stress effects during ExtTrain. (B) During FC and ExtTrain, c-Jun levels decreased in all midline thalamic regions relative to baseline. SPS had no effect on c-Jun levels in any midline thalamic region. Black * represent the effects of learning while red * represent the effects of stress. All * are for statistical comparisons at P < 0.05 criterion.

This Article

  1. Learn. Mem. 26: 403-411