Topic: arkypallidal neurons

Basal ganglia (BG) circuits are crucial for motor initiation and suppression. Dopamine loss in these circuits triggers Parkinson's disease (PD) and debilitating motor impairments such as akinesia and bradykinesia. Levodopa treatments alleviates PD symptoms, but often leads to abnormal involuntary movements known as levodopa-induced dyskinesias (LIDs). Understanding the neuronal mechanism of LIDs is essential for developing novel therapeutic strategies. Recent studies suggest that LIDs result from abnormal striatal activity, yet how this activity affects downstream BG circuits to generate LIDs

Parkinson’s disease (PD) is characterized by the loss of dopamine in the basal ganglia (BG), particularly in the striatum, leading to aberrant activity patterns in BG neuronal circuits. The external globus pallidus (GPe) is a central nucleus in the BG and plays a pivotal role in the function of the indirect pathway. two populations of GPe cells were described, the prototypic and arkypallidal neurons, which are distinct developmentally, anatomically and electrophysiologically. Additionally, they have been shown to be involved in sensory processing, mediated by different input pathways. How dopa