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neurobiology

This shows the dopamine structure and two heads

·January 25, 2020·3 min read

Silicon Valley’s latest fad is dopamine fasting – and that may not be as crazy as it sounds

Advocates of dopamine fasting claim it can help curb addictive behaviors and make daily life more pleasurable. Researchers explore the potential benefits of this new Silicon Valley trend.

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·January 24, 2020·4 min read

How emotions are mapped in the brain

Neuroimaging reveals the entire set of human emotions is topographically located in the right temporoparietal junction.

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·January 24, 2020·3 min read

Optical stimulation causes marmosets to move their forelimbs

Optogenetic stimulation of the motor cortex causes marmosets to move their forelimbs in an almost puppet-like fashion.

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·January 24, 2020·4 min read

What goes up may actually be down

Virtual reality study reveals people plan movements and anticipate the force of gravity by "seeing it" through visual cues rather than "feeling it."

This shows a lonely man on a crowded street

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·January 24, 2020·3 min read

Imbalance between serotonin and dopamine in social anxiety disorder

Study reports the balance between serotonin and dopamine may be a risk factor for a person developing social anxiety disorder.

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·January 24, 2020·3 min read

Horror movies manipulate brain activity expertly to enhance excitement

Neuroimaging reveals areas of the brain associated with visual and auditory processing are more active when anxiety slowly increases during horror movies. After a shocking scene, brain areas associated with emotional processing, threat evaluation, and decision making increase in activity.

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·January 23, 2020·4 min read

Certain personality traits in high school may lower dementia risk five decades later

Your personality traits as a teen may predict your risk of developing dementia 50 years later. Teens who were more energetic and those who were calm had a lower risk of being diagnosed with dementia later in life.

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·January 23, 2020·2 min read

Unexpected connection between gliomas and neurodegenerative diseases

Study finds significant expression of the Alzheimer's related Tau protein in glioma cells, especially in patients with better prognoses.

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·January 23, 2020·4 min read

Living near major roads linked to risk of dementia, Parkinson’s, Alzheimer’s and MS

Living less than 50 meters away from a major road, or less than 150 meters away from a highway, increases the risks for dementia, Alzheimer's disease, Parkinson's disease, and multiple sclerosis. However, living close to green spaces appears to have more of a protective effect against neurodegenerative diseases.

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·January 23, 2020·4 min read

A rat had basically no brain, but it could still see, hear, smell, and feel

Rat R222 was born with hydrocephalus. Neuroimaging revealed most of its brain had compressed and collapsed as it filled with fluid. However, despite its condition, the animal was still able to see, hear, smell, and feel like other animals. The study sheds new light on neuroplasticity, and the findings could have implications for the development of new machine learning technologies.

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·January 23, 2020·3 min read

Hot flashes impair memory performance

Vasomotor symptoms, including hot flashes in postmenopausal women, may contribute to memory performance problems. Neuroimaging reveals hot flashes caused alterations in brain function during memory encoding and retrieval tasks, specifically within the hippocampus and prefrontal cortex.