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  • A large study found that people who developed dementia started to lose awareness of memory problems some 2½ years before dementia onset.
  • This loss of awareness was associated with three examples of neuropathology, including tau tangles and brain infarcts.

A ten-year study involving 2,092 older adults (average age 76) has found that people tended to lose awareness of memory problems two to three years before the onset of dementia.

  • A large study of older adults with age-related macular degeneration found no cognitive benefit from taking omega-3 supplements, or supplements of lutein and zeaxanthin.

A large, five-year study challenges the idea that omega-3 fatty acids can slow age-related cognitive decline.

  • A large study of older adults (70+) found no cognitive benefit from a regular exercise program, compared to another social & mental intervention.
  • However, a subset of participants (those over 80, and those with poor physical function at the beginning of the study) did show improvement in executive function.
  • Participants in both programs showed no cognitive decline over the two-year period, suggesting both interventions were helpful.

A large, two-year study challenges the evidence that regular exercise helps prevent age-related cognitive decline.

  • Foreign words are learned better when gestures or pictures are used.
  • Imitating symbolic gestures is more beneficial than viewing illustrative pictures.
  • These benefits correlate with activity in specific brain regions.
  • The benefits are only found in translation tasks, not in free recall.

A small study using an artificial language adds to evidence that new vocabulary is learned more easily when the learner uses gestures.

  • 3-5 minute questionnaire can screen for presence and severity of dementia
  • its reliability is comparable to existing screening tools
  • its ease of use is better

A new questionnaire has been developed that very quickly determines whether or not a person has dementia and whether it's very mild, mild, moderate or severe. The 10-item questionnaire takes only 3-5 minutes and can be completed by a caregiver, friend or family member.

  • 1st- & 2nd-grade children learned less math and developed more math anxiety when math-anxious parents frequently helped with their math homework.
  • Children with math-anxious parents who rarely helped with their math homework were not affected.

A study of 438 first- and second-grade students and their primary caregivers has revealed that parents' math anxiety affects their children's math performance — but (and this is the surprising bit) only when they frequently help them with their math homework.

  • Children taught foreign language vocabulary in the form of a song learned to pronounce the words better than those who learned the words using an oral poem.
  • Recall was also significantly better, and particularly so after six months.

A small study that compared teaching Spanish-speaking children English vocabulary using a song or a spoken poem has found definite and long-term advantages to the song form.

  • A review of previous research has compared brain activity in those with PTSD who experienced trauma, those who experienced trauma but didn't develop PTSD, and those who never experienced trauma.
  • Those who had PTSD had differential activity in two brain regions.
  • Those who had experienced trauma had diffe

A meta-analysis of studies reporting brain activity in individuals with a diagnosis of PTSD has revealed differences between the brain activity of individuals with PTSD and that of groups of both trauma-exposed (those who had experienced trauma but didn't have a diagnosis of PTSD) and trauma-naï

  • Implementation plans are a strategy for helping you remember your intended future actions.
  • College students with low WMC performed a prospective memory task at the same level as those with a higher WMC, but only when they used a simple implementation plan.

I've written at length about implementation plans in my book “Planning to Remember: How to Remember What You're Doing and What You Plan to Do”.

More evidence for the benefits of the Mediterranean diet for fighting age-related cognitive decline comes from a large 5-year study. The study involved 960 older adults, whose cognitive change was assessed over 4.7 years.

  • Waste products accumulate as the brain functions.
  • The process of clearing this waste is most effective during sleep.
  • Accumulation of waste products such as amyloid-beta and tau proteins are involved in Alzheimer's.
  • Rat study shows sleeping on your side is best for removing waste from the brain.

This sounds like pseudoscience, but it appears in Journal of Neuroscience, so … Weirdly, a rat study has found that sleeping on the side (the most common posture for humans and other animals) is the best position for efficiently removing waste from the brain.

A long-running study comparing African-Americans and Nigerians has found the incidence of dementia has fallen significantly over two decades among the African-Americans, but remained the same for the Nigerians (for whom it was lower anyway).

A post-mortem study of five Alzheimer's and five control brains has revealed the presence of iron-containing microglia

We've seen a number of studies showing the value of music training for children's development of language skills. A new study has investigated what happens if the training doesn't begin until high school.

Cognitive impairment affects 40-65% of people with MS. Why? In the past year, a number of studies have helped us build a better picture of the precise nature of cognitive problems that may affect multiple sclerosis sufferers:

A large study shows how a 45-minute online intervention can improve struggling high school students' attitude to schoolwork, and thus their academic performance.

There's been a lot of talk in recent years about the importance of mindset in learning, with those who have a “growth mindset” (ie believe that intelligence can be developed) being more academically successful than those who believe that intelligence is a fixed attribute.

This is just a preliminary study presented at a recent conference, so we can't give it too much weight, but the finding is consistent with what we know about

Because this is such a persistent myth, I thought I should briefly report on this massive study that should hopefully put an end to this myth once and for all (I wish! Myths are not so easily squashed.)

Blood pressure data from 378 participants in the Framingham Heart Study has revealed that those who had high systolic blood pressure when they were 50-60 years old scored worse on a

A six-month pilot study involving 101 healthy older adults (65+), who were randomly put into one of three exercise interventions or a no-change control, has found that the exercise groups all showed significant improvement in visual-spatial processing and attention, with more improvement in visu

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