Dopamine News and Research

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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.
Study sheds new light on why autism is more common in boys

Study sheds new light on why autism is more common in boys

NTU Singapore, KAIST scientists discover new mechanism that causes Parkinsonian symptoms

NTU Singapore, KAIST scientists discover new mechanism that causes Parkinsonian symptoms

Researchers identify new mechanism that causes hallmark symptoms of Parkinson's disease

Researchers identify new mechanism that causes hallmark symptoms of Parkinson's disease

Brain rewiring due to dopamine loss may be source of impaired movement in Parkinson's disease

Brain rewiring due to dopamine loss may be source of impaired movement in Parkinson's disease

New approaches to prevent or treat antipsychotic-induced supersensitivity psychosis

New approaches to prevent or treat antipsychotic-induced supersensitivity psychosis

Study finds mechanism behind super-sharp night vision for brief time during total eclipse

Study finds mechanism behind super-sharp night vision for brief time during total eclipse

Researchers find mechanism that explains differences in skin’s responsiveness to heat, mechanical stimuli

Researchers find mechanism that explains differences in skin’s responsiveness to heat, mechanical stimuli

Existing antidepressant drug could slow progression of Parkinson’s

Existing antidepressant drug could slow progression of Parkinson’s

Biologists unlock key elements behind animal kinship attachments

Biologists unlock key elements behind animal kinship attachments

Reprogrammed stem cell therapy shows promise in Parkinson's

Reprogrammed stem cell therapy shows promise in Parkinson's

Bacterial community in the gut of Parkinson's patients differs from that of healthy people

Bacterial community in the gut of Parkinson's patients differs from that of healthy people

Researchers use zebrafish animal model to explore drug-seeking behavior

Researchers use zebrafish animal model to explore drug-seeking behavior

Teenagers’ impulsive and risk taking behavior not related to brain deficit symptoms

Teenagers’ impulsive and risk taking behavior not related to brain deficit symptoms

Brain scans reveal lower serotonin transporters in people with mild cognitive impairment

Brain scans reveal lower serotonin transporters in people with mild cognitive impairment

ACR develops 3 new guidance documents, revises 32 others to advance science of radiology

ACR develops 3 new guidance documents, revises 32 others to advance science of radiology

Diabetes drug shows promise as Parkinson’s treatment

Diabetes drug shows promise as Parkinson’s treatment

UVA researchers identify connection between dopamine neurons and brain’s circadian center

UVA researchers identify connection between dopamine neurons and brain’s circadian center

New drug may limit disease progression, provide better symptom relief to Parkinson's patients

New drug may limit disease progression, provide better symptom relief to Parkinson's patients

Immune system may wage a battle in Parkinson’s disease

Immune system may wage a battle in Parkinson’s disease

Scientists discover new way to observe brain changes caused by Parkinson's disease

Scientists discover new way to observe brain changes caused by Parkinson's disease