Fig. 2.
Neuronal ensemble recordings in the medial prefrontal cortex (mPFC). A: locations of implanted microwire electrode arrays in the 5 behaving rats with isolated single units are shown on a horizontal section through the mPFC. B: the depth of the section in A is shown in this diagram (as the gray horizontal line), and the region explored with the microdrive in rat 1 is depicted by the blue box. FrA, frontal association area; PrL, prelimbic area.