Biomarkers, or biological markers, are quantitative measurements that offer researchers and clinicians valuable insight into diagnosis, treatment and prognosis for many disorders and diseases. A major goal in neuroscience medical research is establishing biomarkers for disorders of the nervous system. Given the promising potential and necessity for neuroscience biomarkers, the Institute of Medicine Forum on Neuroscience and Nervous System Disorders convened a public workshop and released the workshop summary entitled Neuroscience Biomarkers and Biosignatures: Converging Technologies, Emerging Partnerships. The workshop brought together experts from multiple areas to discuss the most promising and practical arenas in neuroscience in which biomarkers will have the greatest impact. The main objective of the workshop was to identify and discuss biomarker targets that are not currently being aggressively pursued but that could have the greatest near-term impact on the rate at which new treatments are brought forward for psychiatric and neurological disorders.