Cognitive Function News and Research

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Cognition is a concept used in different ways by different disciplines, but is generally accepted to mean the process of thought. For example, in psychology and cognitive science it refers to an information processing view of an individual's psychological functions.

Some blood pressure drugs may help protect against dementia, study shows

A particular class of medication used to treat high blood pressure could protect older adults against memory decline and other impairments in cognitive function, according to a newly published study from Wake Forest University School of Medicine.

23 Jul 2009

Short stressful events may improve working memory

Experiencing chronic stress day after day can produce wear and tear on the body physically and mentally, and can have a detrimental effect on learning and emotion. However, acute stress -- a short stressful incident -- may enhance learning and memory.

23 Jul 2009

Close caregiver relationship may slow Alzheimer's decline

A study led by Johns Hopkins and Utah State University researchers suggests that a particularly close relationship with caregivers may give people with Alzheimer's disease a marked edge over those without one in retaining mind and brain function over time. The beneficial effect of emotional intimacy that the researchers saw among participants was on par with some drugs used to treat the disease.

22 Jul 2009

Diet rich in fish helps prevent dementia

According to experts over 24 million people worldwide are thought to suffer from dementia, and many of these people live in low and middle-income countries.

20 Jul 2009

Preliminary findings in Phase IIA trial point to natural compound NIC5-15's potential in Alzheimer's disease

Researchers at Mount Sinai School of Medicine have found that a compound called NIC5-15, might be a safe and effective treatment to stabilize cognitive performance in patients with mild to moderate Alzheimer's disease.

19 Jul 2009

Research finds earliest evidence of memory decline in middle-aged people at genetic risk for Alzheimer's

Memory lapses that occur with normal aging are a source of worry for many who fear Alzheimer's disease. Now a new Mayo Clinic-led study published in the July 16 issue of the New England Journal of Medicine suggests that the carriers of a common genetic risk factor for Alzheimer's disease begin to have memory declines in their mid-50s, far earlier than previously thought.

15 Jul 2009

IQ explains some of the difference in heart disease between people of high and low socio-economic status

A unique study looking at the difference in cardiovascular disease (heart disease and stroke) and life expectancy between people of high and low socio-economic status has found that a person's IQ may have a role to play.

14 Jul 2009

Researchers try to predict who is going to develop Alzheimer's in the future

A new Mayo Clinic study found that the clinical criteria for mild cognitive impairment is better at predicting who will develop Alzheimer's disease than a single memory test. This is one more piece of information to aid in the identification and early treatment of individuals most likely to develop Alzheimer's disease.

14 Jul 2009

Results from trials of DHA in Alzheimer's and age-related cognitive decline

Results from two large studies using DHA, an omega 3 fatty acid, were reported today at the Alzheimer's Association 2009 International Conference on Alzheimer's Disease (ICAD 2009) in Vienna.

12 Jul 2009

Flavonoids offer dementia, Alzheimer's hope

A group of chemicals found in many fruits and vegetables, as well as tea, cocoa and red wine, could protect the brain from Alzheimer's disease, a dementia expert told scientists at a conference last Friday.

12 Jul 2009

Erythropoietin improves learning and other higher brain functions

Healthy young mice treated with erythropoietin show lasting improved performance in learning and other higher brain functions. Researchers writing in the open access journal BMC Biology tested the cognitive effects of the growth factor, finding that it improved the sequential learning and memory components of a complex long-term cognitive task.

7 Jul 2009

The single life can increase some people's dementia risk

The researchers from the Karolinska Institute suggest that people who have a particular gene variation and live alone in middle-age, have a higher risk of developing dementia.

5 Jul 2009

New pieces in the autism inheritance puzzle

Pieces in the complex autism inheritance puzzle are emerging in the latest study from a research team including geneticists from the University of Pennsylvania School of Medicine and The Children's Hospital of Philadelphia (CHOP). The study identified 27 different genetic regions where rare copy number variations - missing or extra copies of DNA segments - were found in the genes of children with autism spectrum disorders, but not in the healthy controls. The findings are published June 26 in the open-access journal PLoS Genetics.

30 Jun 2009

Cognitive behavioural therapy for major psychiatric disorder: does it really work?

Research co-led by an academic at the University of Hertfordshire, concludes that Cognitive Behavioural Therapy (CBT) is of no value in schizophrenia and has limited effect on depression.

28 Jun 2009

Cognitive health among seniors in the United States and in England

American over-65s scored significantly better than their English counterparts at a memory and awareness test. The authors of the research, published in the open access journal BMC Geriatrics, suggest that differences in relative levels of depression, education, and the aggressiveness of treatment for heart disease may be to blame.

24 Jun 2009

Migraines with aura in middle age associated with late-life brain lesions

Women who suffer from migraine headaches in middle age accompanied by neurological aura (visual disturbances, dizziness or numbness that can precede migraines) are more likely to have damage to brain tissue in the cerebellum later in life, according to a study by researchers at the National Institute on Aging (NIA) of the National Institutes of Health, the Uniformed Services University of the Health Sciences and the Icelandic Heart Association in Reykjavik.

23 Jun 2009

People with autism better at problem-solving

Autistics are up to 40 percent faster at problem-solving than non-autistics, according to a new Université de Montréal and Harvard University study published in the journal Human Brain Mapping.

17 Jun 2009

Cognitive shortcut causes people to miscalculate weight and caloric intake

Psychologists at the University of Pennsylvania have identified a cognitive shortcut, or heuristic, they call "Unit Bias," which causes people to ignore vital, obvious information in their decision-making process, points to a fundamental flaw in the modern, evolved mind and may also play a role in the American population's 30 years of weight gain.

16 Jun 2009

Inflammation of microglia may not be associated with dementia in Alzheimer's disease

The idea that anti-inflammatory drugs might protect people struggling with dementia from Alzheimer's disease has received a blow with the online release of a study of human brain tissue in Acta Neuropathologica.

15 Jun 2009

Positron emission tomography scans may improve the accuracy of dementia diagnosis

A new study shows that the use of positron emission tomography (PET) scans may improve the accuracy of dementia diagnoses early in disease onset for more than one out of four patients. The results were presented at SNM's 56th Annual Meeting.

15 Jun 2009