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dopamine

·January 22, 2025·6 min read

Dopamine Drives Aggression Learning in Males

New research reveals that dopamine plays a crucial role in teaching young male mice to fight, with the chemical’s influence diminishing as they gain experience. In novice fighters, boosting dopamine increased aggression, while blocking it stopped them from fighting.

Featured Neuroscience

·January 8, 2025·6 min read

Dopamine and Serotonin Drive Emotional Word Processing

Researchers have uncovered how neurotransmitters in the brain respond to the emotional content of language, shedding light on the intersection of emotion, cognition, and communication. Using advanced techniques, the team simultaneously measured dopamine, serotonin, and norepinephrine release in patients during exposure to emotionally charged words.

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Featured Neuroscience

·December 20, 2024·5 min read

Serotonin, GABA, and Dopamine Drive Hunger and Feeding

A new study has revealed how brain circuits and neurotransmitters regulate meal initiation, offering insights into obesity management. Researchers identified serotonin neurons in the midbrain's dorsal Raphe nucleus (DRN) as key players, inhibited by GABA and dopamine when hunger strikes.

Featured Neuroscience Psychology

·December 16, 2024·3 min read

Dopamine Plays Key Role in the Heart’s Stress Response

Researchers have discovered how stress-induced cardiovascular changes are controlled by the brain. Experiments in rats show that activating the lateral habenula, a stress-sensitive brain region, triggers changes in heart rate and blood pressure.

Featured Neuroscience

·November 25, 2024·8 min read

Dopamine and Serotonin Work in Opposition for Effective Learning

The interplay between dopamine and serotonin shapes behavior by creating a balance between reward-seeking and impulse control. A novel study demonstrated that both systems work in opposition but are essential for effective learning.

Autism Featured Genetics Neuroscience Psychology

·November 21, 2024·4 min read

Immune System Gene Linked to Hyperactivity, ADHD and Autism

Researchers have uncovered a link between the immune gene regulator STAT1 and hyperactive behaviors in mice, offering new insights into neurodevelopmental disorders like autism and ADHD. STAT1, vital for infection response, also influences brain cell activity, particularly dopamine neurons involved in motivation and learning. In mice with prolonged STAT1 signaling, hyperactivity and reduced neural activity in key brain regions were observed. The study opens the door to targeting STAT1 for potential therapies to address neurobehavioral disorders.

Featured Neurology Neuroscience

·November 18, 2024·7 min read

Parkinson’s Tremor Linked to Dopamine in Caudate Nucleus

Rest tremor in Parkinson’s disease is linked to dopamine activity in the caudate nucleus, challenging conventional beliefs about dopamine loss and motor symptoms. Surprisingly, patients with stronger tremor preserved more dopamine in the caudate, highlighting a complex relationship between tremor severity and neural circuits.

Featured Neuroscience Psychology

·November 9, 2024·5 min read

Childhood Stress Disrupts Attention, Sleep, and Dopamine Balance in Adults

New research links childhood adversity with later attention deficits, sleep disruptions, and specific dopamine imbalances in the brain. Focusing on critical developmental windows, scientists found that disrupted care early in life affected males more than females.

Featured Genetics Neurology Neuroscience

·October 28, 2024·4 min read

Key Biochemical Trigger of Huntington’s Disease Progression Identified

Researchers have identified a crucial biochemical mechanism that could allow Huntington’s disease to be studied before symptoms appear, offering hope for early intervention. The team found that disrupted dopamine regulation in specific neurons, related to TrkB neurotrophin receptor signaling, may trigger Huntington’s onset. By targeting an enzyme called GSTO2, researchers prevented motor symptoms in a mouse model, suggesting this protein's role in the disease's progression.

Featured Neuroscience

·October 23, 2024·6 min read

Neural Pathways Link Dopamine to Movement and Motivation

Researchers have discovered two new brain pathways that modify movement and emotional decisions by controlling dopamine release. These pathways, found in the striatum, either stimulate or inhibit dopamine-producing neurons, influencing the go and no-go pathways that control movement.

Featured Genetics Neuroscience

·October 11, 2024·5 min read

Key Brain Protein Tied to Motivation and Mood Identified

A new study has identified a brain protein, vesicular nucleotide transporter (Vnut), as essential for regulating mood and motivation in mice. When Vnut was removed from brain cells called astrocytes, the mice displayed higher anxiety, depression-like behavior, and decreased motivation, especially in females.

Featured Neurology Neuroscience

·October 5, 2024·5 min read

New Molecule Offers Hope for Parkinson’s by Outperforming L-Dopa

A new study has discovered that ophthalmic acid, a molecule in the brain, acts like a neurotransmitter to regulate motor function, similar to dopamine. In Parkinson’s mouse models, this molecule improved movement for over 20 hours—far longer than the effects of the current treatment, L-dopa.