Figure 5.

Depending on the strength and directionality of connections, electrical stimulation of different cortical areas elicits contrasting patterns of BL unit responsiveness. Pie charts show relative incidence of orthodromically responsive (black), antidromically responsive (gray), and unresponsive BL cells with various stimulation sites (area temp, bottom left; insula, top left; ipsilateral mPFC, center; indirect activation of the mPFC, top right). Thickness of arrows indicates relative strength of connections between stimulation sites and BL nucleus, as described in previous tract-tracing studies (see references in Results). Temp, Temporal neocortex; Stim, stimulation; ipsi, ipsilateral; contra, contralateral.