Research Topic · Peer-Reviewed

Substantia Nigra

The substantia nigra is a midbrain nucleus of the basal ganglia that is central to the control of voluntary movement and to reward and motor learning. It is divided into two functionally distinct parts: the substantia nigra pars compacta, whose densely pigmented, neuromelanin-containing neurons synthesize dopamine a…

Curated from this journal's research 📚 6 peer-reviewed articles cited Cited 15× across the literature 🔖 ISSN 2470-5020 🗓 Reviewed June 2026

Overview

The substantia nigra is a midbrain nucleus of the basal ganglia that is central to the control of voluntary movement and to reward and motor learning. It is divided into two functionally distinct parts: the substantia nigra pars compacta, whose densely pigmented, neuromelanin-containing neurons synthesize dopamine and project to the striatum to modulate basal-ganglia circuitry, and the substantia nigra pars reticulata, a GABAergic output structure that, with the internal globus pallidus, regulates thalamocortical and brainstem motor pathways. Nigrostriatal dopaminergic signaling shapes the balance of direct and indirect pathways that govern movement initiation and suppression, and it interacts with other neuromodulators. Progressive degeneration of pars compacta dopaminergic neurons is the defining pathological feature of Parkinson's disease, producing the cardinal motor signs of bradykinesia, rigidity, and tremor and the spectrum of associated complications. Work relevant to this region includes in vivo voltammetric and electrophysiological analyses of how nociceptin/orphanin FQ influences dopamine and serotonin activity in the substantia nigra, studies of clinical features such as impulse-control disorders in Parkinson's disease, and toxin-based models, including rotenone-induced neurotoxicity, used to probe nigral vulnerability and neuroprotection. These investigations illuminate the mechanisms of dopaminergic cell loss, oxidative and mitochondrial stress, and the basis of movement disorders, and they inform the search for protective and restorative therapies.

Research published in this journal

6 peer-reviewed articles, ranked by relevance. Each links to its DOI.

How this research is being cited

The 6 articles above have been cited 15 times in the scholarly literature. Citation data via OpenAlex and Crossref, updated Jun 2026.

A sample of recent works citing this journal's research on Substantia Nigra, linking to each citing work.

Editorial oversight

Curated from peer-reviewed research published in Neurological Research and Therapy (ISSN 2470-5020).

Journal editorial board
Ian J Martins · Australia Giuseppe Lanza · Italy Ion Codreanu · United States

This page summarises published research for orientation; it is not medical or professional advice.