Dopamine depletion leads to pathological synchronization of distinct basal ganglia loops in the beta band
Fig 7
Evolution of the PSD of the STN and D2 populations for increasing values of Dopamine Depletion Dd.
PSD of both STN and D2 nuclei related to low (A), intermediate (B) and high (C) levels of dopamine depletion (Dd = 0.9, 0.97 and 1.05 respectively): for low values of Dd the system is characterized by the only STN-loop resonance; the increase of Dd leads to higher degrees of interaction and to the emergence of a unique resonance at an intermediate frequency.