Neuroscience News and Research

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Daydreaming linked to Alzheimer's disease

According to new research, Alzheimer's disease may be due to abnormalities in the regions of the brain that operate the "default state", a term used to describe the cognitive state people defer to when musing, daydreaming, or thinking to themselves.

30 Aug 2005

Study shows humans have ability to track odors

Though humans may never match the tracking ability of dogs, we apparently have the ability to sniff out and locate odors, according to a new study by scientists from the University of California, Berkeley.

29 Aug 2005

Subtle effects of hearing loss on memory and cognitive function in older adults

In a new study, Brandeis University researchers conclude that older adults with mild-to-moderate hearing loss may expend so much cognitive energy on hearing accurately that their ability to remember spoken language suffers as a result.

29 Aug 2005

Study reveals functional link between emotion processing centers in the brain and certain physiological processes relevant to disease

The mere mention of a stressful word like "wheeze" can activate two brain regions in asthmatics during an attack, and this brain activity may be associated with more severe asthma symptoms, according to a study by University of Wisconsin-Madison researchers and collaborators.

29 Aug 2005

Protein snapin has potential as a drug target in therapies aimed at learning and memory disorders

Rutgers' Bonnie Firestein likens nerve cells to trees -- some are short and bushy with many branches while others are tall with a few branches coming out of one or two main trunks. Different branching patterns correlate with specific disorders and Firestein's quest is to discover how these dissimilar patterns come about and why.

25 Aug 2005

Parts of the brain used in daydreaming are the same areas that fail in people who have Alzheimer's disease

Researchers who used five different medical imaging techniques to study the brain activity of 764 people, including those with Alzheimer's disease, those on the brink of dementia, and healthy individuals, have found that the areas of the brain that young, healthy people use when daydreaming are the same areas that fail in people who have Alzheimer's disease.

25 Aug 2005

Brain can be tricked into thinking the pain has gone

A new U.S. study has found that it is possible that by just thinking that a medicine will relieve pain is enough to prompt the brain to release its own natural painkillers, and soothe painful sensations.

24 Aug 2005

First direct evidence that endorphins play a role in the phenomenon known as the placebo effect

Just thinking that a medicine will relieve pain is enough to prompt the brain to release its own natural painkillers, and soothe painful sensations, a new University of Michigan study finds.

23 Aug 2005

Biochemical switch that affects how neurons fire in a part of the brain associated with learning

Researchers at UT Southwestern Medical Center have identified a biochemical switch that affects how neurons fire in a part of the brain associated with learning, findings that may aid in understanding schizophrenia and Alzheimer's disease.

17 Aug 2005

Experimental therapy could offer new way to treat spine damage

An experimental therapy that combines stem cells and gene therapy to repair spinal cord injuries in rats may lead to a new way to treat the same injury in humans.

15 Aug 2005

Folates best at preventing Alzheimer's disease

According to results from a long-term study on aging, adults who eat the daily recommended allowance of folates significantly reduce their risk of developing Alzheimer's disease.

15 Aug 2005

Vitamin B reduces risk of developing Alzheimer's disease

Adults who eat the daily recommended allowance of folates - B-vitamin nutrients found in oranges, legumes, leafy green vegetables and folic acid supplements - significantly reduce their risk of developing Alzheimer's disease, according to results from a long-term National Institute on Aging study of diet and brain aging.

13 Aug 2005

There are subtle effects of hearing loss on memory and cognitive function in older adults

13 Aug 2005

Key step in the production of beta-amyloid

Researchers at UT Southwestern Medical Center have defined a key step in the production of beta-amyloid, a short protein that is thought to be responsible for the development of Alzheimer's disease. Understanding this step may aid in the discovery of drugs that could help block the disease from developing.

11 Aug 2005

Endorphin system may hold the key to understanding and treating bulimia nervosa

The role of the brain's opioid receptor system - or endorphin system - may hold the key to understanding and treating bulimia nervosa, according to research reported in the Society of Nuclear Medicine's August issue of the Journal of Nuclear Medicine.

9 Aug 2005

Researchers look at how we understand visual images

The figure is famous: a deceptively simple line drawing that at first glance resembles a vase and, at the next, a pair of human faces in profile. When you look at this figure, your brain must rapidly decide what the various lines denote. Are they the outlines of the vase or the borders of two faces? How does your brain decide?

9 Aug 2005

New theory as to why some people die during sleep

According to scientists the reason why some people stop breathing fatally in their sleep, is because a cumulative loss of cells in the area of the brain that controls breathing triggers a condition called central sleep apnoea.

9 Aug 2005

Breastfeeding lowers mothers stress

Moms, want to lower stress? Try breastfeeding. New research from the McGill-affiliated Douglas Hospital Research Centre in Montreal shows mothers who breastfeed respond less to stressful situations than those who bottle-feed their children. These findings suggest these mothers may be better able to care for their children.

7 Aug 2005

Nighttime dying linked to sleep apnea from brain cell loss

Aim to grow old and die peacefully in your sleep? Be careful what you wish for. A new UCLA study suggests that some people die in their sleep because they stop breathing due to a cumulative loss of cells in the brain's breathing command-post. The online edition of Nature Neuroscience reports the findings.

7 Aug 2005

Brain may interpret the information it receives from sensory neurons using a code more complicated than scientists previously thought

...according to new research from the National Autonomous University of Mexico and Cold Spring Harbor Laboratory. By studying how monkeys perceive a vibrating object when it touches the skin, scientists found that changes in an animal's attention over time influence how a sensory signal is interpreted.

1 Aug 2005

Neuroscience News and Research

Daydreaming linked to Alzheimer's disease

Study shows humans have ability to track odors

Subtle effects of hearing loss on memory and cognitive function in older adults

Study reveals functional link between emotion processing centers in the brain and certain physiological processes relevant to disease

Protein snapin has potential as a drug target in therapies aimed at learning and memory disorders

Parts of the brain used in daydreaming are the same areas that fail in people who have Alzheimer's disease

Brain can be tricked into thinking the pain has gone

First direct evidence that endorphins play a role in the phenomenon known as the placebo effect

Biochemical switch that affects how neurons fire in a part of the brain associated with learning

Experimental therapy could offer new way to treat spine damage

Folates best at preventing Alzheimer's disease

Vitamin B reduces risk of developing Alzheimer's disease

There are subtle effects of hearing loss on memory and cognitive function in older adults

Key step in the production of beta-amyloid

Endorphin system may hold the key to understanding and treating bulimia nervosa

Researchers look at how we understand visual images

New theory as to why some people die during sleep

Breastfeeding lowers mothers stress

Nighttime dying linked to sleep apnea from brain cell loss

Brain may interpret the information it receives from sensory neurons using a code more complicated than scientists previously thought

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