Tag: brain

Which types of brain activity support conscious experiences?

Consciousness remains one of the brain’s biggest mysteries. We know very little about how it emerges from activity within the brain, but most neuroscientists agree consciousness is dynamic in nature. Our subjective experience doesn’t appear to us like a sequence of disjointed snapshots. Instead, we feel the world as a continuous stream of information. This

Study: Measuring brain waves could diagnose dementia early

Our visual memory system has a phenomenally large capacity. Flick through the image gallery on your phone, or fast forward through a previously watched movie, and notice how the briefly presented images trigger memories with little or no effort on your part. Well, my colleagues and I have harnessed this passive visual memory system to

Systematic anatomical study specifies guidelines for performing nasopharyngeal swabs

Since the start of the coronavirus pandemic, thousands of nasopharyngeal swabs have been taken in Austria – millions worldwide. Their correct performance is essential for diagnosing and challenging Covid-19. To assist the correct collection of nasopharyngeal material, a systematic anatomical study conducted at MedUni Vienna specifies guidelines and landmarks and evaluates the danger for the

A brain mechanism that automatically links objects in our minds

When people see a toothbrush, a car, a tree—any individual object—their brain automatically associates it with other things it naturally occurs with, allowing humans to build context for their surroundings and set expectations for the world. By using machine-learning and brain imaging, researchers measured the extent of the “co-occurrence” phenomenon and identified the brain region

Older adult’s perceived cognitive decline may be related to changes in brain functional connectivity

Jessica Damoiseaux, Ph.D., an associate professor with the Institute of Gerontology at Wayne State University, recently published the results of a three-year study of cognitive changes in older adults. The team followed 69 primarily African American females, ages 50 to 85, who complained that their cognitive ability was worsening though clinical assessments showed no impairments.

Researchers report on the role of brain cell membranes' lipids in Alzheimer's progression

Alzheimer's disease is predominant in elderly people, but the way age-related changes to lipid composition affect the regulation of biological processes is still not well understood. Links between lipid imbalance and disease have been established, in which lipid changes increase the formation of amyloid plaques, a hallmark of Alzheimer's disease. This imbalance inspired researchers from

An analysis links COVID-19 to brain microvascular injury and inflammation

The ongoing COVID-19 pandemic is caused by the severe acute respiratory syndrome-2 (SARS-CoV-2), an RNA virus that belongs to the family Coronaviridae.  According to research, coronavirus disease 2019 (COVID-19) patients often suffer from neurological disorders like strokes, lost taste or smell, memory loss, confusion, and delirium. By comparing the symptoms associated with other coronavirus infections,

Brain study may lead to new treatments for neuro-immune conditions

The immune system is the brain's best frenemy. It protects the brain from infection and helps injured tissues heal, but it also causes autoimmune diseases and creates inflammation that drives neurodegeneration. Two new studies in mice suggest that the double-edged nature of the relationship between the immune system and the brain may come down to

Brain research gets a boost from mosquitoes

Can a protein found in a mosquito lead to a better understanding of the workings of our own brains? Prof. Ofer Yizhar and his team in the Weizmann Institute of Science’s Neurobiology Department took a light-sensitive protein derived from mosquitoes and used it to devise an improved method for investigating the messages that are passed