Frontal EEG alpha asymmetry changes while watching emotional film clips and role of difference pair of frontal electrodes: A preliminary study

摘要

It is known that the PFc is the source of a major glutamatergic innervation in the VTA and the NAc, and that cortical control of these brain regions is crucial in reward-related behaviour. However, exact details of these corticofugal pathways are unknown. Therefore, with single retrograde tracing experiments, first, we mapped the prefrontal source of these connections. Our prelimi- nary results indicated that VTA-projecting cells formed two clusters in the PFc - one in the deepest layer and one more superficially. In contrast, NAc-projecting cells were localised in one cluster in the PFc. Then, with double retrograde approach, we investigated the proportion of PFc cells innervating both regions.