Dopamine News and Research

RSS
Dopamine is a hormone and neurotransmitter occurring in a wide variety of animals, including both vertebrates and invertebrates. In the brain, this phenethylamine functions as a neurotransmitter, activating the five types of dopamine receptors — D1, D2, D3, D4 and D5, and their variants. Dopamine is produced in several areas of the brain, including the substantia nigra and the ventral tegmental area. Dopamine is also a neurohormone released by the hypothalamus. Its main function as a hormone is to inhibit the release of prolactin from the anterior lobe of the pituitary. Dopamine has many functions in the brain, including important roles in behavior and cognition, motor activity, motivation and reward, inhibition of prolactin production (involved in lactation), sleep, mood, attention, and learning. Dopaminergic neurons (i.e., neurons whose primary neurotransmitter is dopamine) are present chiefly in the ventral tegmental area (VTA) of the midbrain, substantia nigra pars compacta, and arcuate nucleus of the hypothalamus.
Genetic engineering could open possibilities for patients with Parkinson’s disease

Genetic engineering could open possibilities for patients with Parkinson’s disease

Brain circuit regulates individual responses to temptation cues, rat study finds

Brain circuit regulates individual responses to temptation cues, rat study finds

New oral splint can reduce tics in children and adults with Tourette syndrome

New oral splint can reduce tics in children and adults with Tourette syndrome

Resistance to 'hunger hormone' linked with cognitive impairments and memory loss

Resistance to 'hunger hormone' linked with cognitive impairments and memory loss

Investigational drug reduces stuttering symptoms in open-label pilot study

Investigational drug reduces stuttering symptoms in open-label pilot study

Neurological markers in the brain can help detect people at risk for psychotic disorders

Neurological markers in the brain can help detect people at risk for psychotic disorders

Research explains why many psychiatric drugs that work in the lab don’t work in people

Research explains why many psychiatric drugs that work in the lab don’t work in people

Johns Hopkins researchers reveal why deep brain stimulation improves Parkinson’s symptoms

Johns Hopkins researchers reveal why deep brain stimulation improves Parkinson’s symptoms

Genetic variant increases risk of addiction in the presence of childhood stress

Genetic variant increases risk of addiction in the presence of childhood stress

MRI scans show how ADHD medication affects brain structure in children

MRI scans show how ADHD medication affects brain structure in children

New study explores the effects of cannabis on brain neurochemistry

New study explores the effects of cannabis on brain neurochemistry

Sheffield academic receives funding to protect brain cells affected by Parkinson's

Sheffield academic receives funding to protect brain cells affected by Parkinson's

Researchers investigate impact of low-salt diets and ketogenic diet

Researchers investigate impact of low-salt diets and ketogenic diet

Astrocytic MORs in the hippocampus responsible for conditioned place preference

Astrocytic MORs in the hippocampus responsible for conditioned place preference

Blocking dopamine reduces drug seeking and taking behavior

Blocking dopamine reduces drug seeking and taking behavior

Resveratrol shows promise for anxiety and depression

Resveratrol shows promise for anxiety and depression

Molecule inhibits toxic protein accumulation in Parkinson's disease model

Molecule inhibits toxic protein accumulation in Parkinson's disease model

Controlled stimulation of the ear canal can help reduce Parkinson's symptoms

Controlled stimulation of the ear canal can help reduce Parkinson's symptoms

Brain protein mutation from an autistic person alters behavior in mice

Brain protein mutation from an autistic person alters behavior in mice

Gene mutation in the brain of autism patients alters behaviors in mice

Gene mutation in the brain of autism patients alters behaviors in mice