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Leiden University

·April 11, 2025·5 min read

Probiotics May Reduce Negative Feelings

A new study shows that daily probiotics can significantly reduce negative emotions such as anxiety, stress, and fatigue in healthy adults. Using a mix of mood tracking, emotion-processing tasks, and psychological questionnaires, researchers found that probiotics began improving mood after about two weeks.

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Featured Neuroscience Psychology

·April 14, 2023·4 min read

Bodily Rhythm Affects Behavior

Examining cell phone data, researchers determine the human body has rhythms that range from between 7 to 52 days, and these cycles influence how we behave.

This shows a still of an old fashioned sail boat in a virtual environment

Featured Neuroscience Open Neuroscience Articles

·October 21, 2022·4 min read

A New Environment Boosts Your Memory (But Not for Everyone)

Exploring a new environment helps boost dopamine levels which are projected to the hippocampus, decreasing the threshold for learning. However, in older people, the novelty of a new environment doesn't boost memory as much as it does in younger people.

Featured Neuroscience

·September 1, 2022·3 min read

Neurolinguists Report Not Two, but Three Options for Brain Functional Categories

A new language-switching experiment revealed traditional categorization of brain areas may not be sufficient. Researchers set their sights on the caudal inferior parietal cortex to better understand functional categorization in the brain.

This shows a sad woman sitting at a window

Featured Neuroscience Psychology

·July 8, 2022·3 min read

Antibiotic Treatments May Make Us More Susceptible to Negative Emotions

Recent antibiotic use impacts the way in which people pay attention to negative facial expressions. Findings shed light on how antibiotic use can increase the risks of depression.

Featured Neuroscience Neuroscience Videos Open Neuroscience Articles Psychology Visual Neuroscience

·March 6, 2021·4 min read

Larger Pupils? You Might Just Have Gained Someone’s Trust

Autonomic mimicry in human social interactions is significant, a new study reports. Researchers found in computer facial simulations where the pupils were dilated, test subjects trusted the simulated face more and mimicked the pupillary response.

Featured Open Neuroscience Articles Psychology

·September 18, 2020·5 min read

No Evidence for Link Between Depression and Diet

While numerous researchers have concluded that diet can help prevent or alleviate symptoms of depression, a new study reports the evidence to support such claims is weak.

This shows the chemical structure of anandamine

Featured Neuroscience Psychology

·May 12, 2020·4 min read

Body’s own marijuana helps us forget traumatic memories

Anandamide, an endogenous compound produced in the body, plays a role in reversing memories of traumatic events. The findings could lead to new treatments for PTSD.

Featured Neuroscience Psychology

·October 28, 2019·3 min read

Direct relationship between depression and inflammation called into question

Disputing other findings, researchers report there is no direct link between inflammation and depression. The study reports depression may only have a link to inflammation as a result of specific lifestyle features, such as smoking or obesity.

Featured Neuroscience Psychology

·February 20, 2019·3 min read

Optimum Amount of Dopamine Improves Cognitive Ability

According to researchers, there is an optimum amount of dopamine that should be present within the brain. This optimum amount can help improve cognitive performance on tasks, researchers report.