In one study, patients with coronary artery disease were found to have significantly smaller amounts of gray matter — with worse
performances on cognitive tests.
A study involving both college students and 5 - year - olds suggests that listening to pleasing music improves
performance on cognitive tests and promotes creativity.
They found that L - theanine and caffeine together improved their subjects»
performance on cognitive tests where they had to switch quickly between different tasks.
In one hopeful finding, a 2012 meta - analysis found that in 13 studies in which participants had laid off weed for 25 days or more,
their performance on cognitive tests did not differ significantly from that of nonusers.
They analyzed the relationship between these nutrient patterns and subjects» brain structure and
performance on cognitive tests.
In an effort to examine this possible connection, researchers compared
performance on cognitive tests over time for 706 participants (432 with normal cognition; 274 AD dementia) from the National Alzheimer's Coordinating Center database.
Then they estimated the relationship between people's neighborhood scores and
their performance on cognitive tests over two years, factoring in issues like age, gender, education and wealth, that might influence people's cognitive scores independently of neighborhood characteristics.
During his time as an undergraduate student, he was a member of two cognitive neuroscience laboratories, where he worked on research studies examining how structural differences in the brain correlate with
performance on cognitive tests.
[15] One study has shown that consumption of dark chocolate improved
performance on cognitive tests which included the abstract reasoning test, the scanning and tracking test, the working memory test, the visual - spatial memory test, and the organization test.
(At the time, doctors were diagnosing people based only on their symptoms and
performance on cognitive tests.)
A significant correlation between
performance on the cognitive test and BHB levels were observed, with those presenting with the highest BHB levels showing the most improvement.
Hill's b / d has been clinically proven to improve alertness, energy, and
performance on cognitive tests in dogs with CDS.
Not exact matches
The design of this study made it possible to examine 1) the extent to which benefits of breastfeeding
on cognitive ability and achievement were evident throughout middle childhood, adolescence, and into young adulthood; and 2) the extent to which breastfeeding was related to a range of indices of academic achievement that included
performance on standardized
tests, teacher ratings of academic achievement, and levels of success in examinations
on leaving school.
Over the period from 8 to 18 years, sample members were assessed
on a range of measures of
cognitive and academic outcomes including measures of child intelligence quotient; teacher ratings of school
performance; standardized
tests of reading comprehension, mathematics, and scholastic ability; pass rates in school leaving examinations; and leaving school without qualifications.
Table 1 shows clear and highly significant (P <.0001) tendencies for increasing duration of breastfeeding to be associated with higher scores
on measures of
cognitive ability, teacher ratings of
performance, standardized
tests of achievement, better grades in School Certificate examinations, and lower percentages of children leaving school without qualifications.
In the current study, Whitney, along with colleagues John Hinson, WSU professor of psychology, and Hans Van Dongen, director of the WSU Sleep and
Performance Research Center at WSU Spokane, compared how people with different variations of the DRD2 gene performed
on tasks designed to
test both their ability to anticipate events and their
cognitive flexibility in response to changing circumstances.
These effects endured not only throughout the animals» lives but were carried
on to the next generation and along the same gender lines: The offspring of dual - parented pups turned in superior
performances on tests of
cognitive ability and social skills than mice raised by single parents.
However, brain injury was not linked to
performance on other
cognitive tests, including decision - making and organization.
The study details a promising approach for pinpointing more athletes who play «impaired»
on the Immediate Post-Concussion Assessment and
Cognitive Testing, or ImPACT, a computerized tool consisting of eight subtests that gauge neurocognitive
performance.
In June, researchers reported that office workers scored higher
on tests of
cognitive function when the room was better ventilated, but many studies have found that background noise impairs
cognitive performance.
They maintain that
cognitive tests done over time actually indicate small or no differences in
performance among these populations and that studies
on risk factors have produced useful, yet insufficient, explanations of the disparities - largely due to the lack of African American participation in research studies.
«Multiple measures of sleep apnea severity directly correlated with poorer
performance on several
cognitive tests,» said co-first author Anna Kratz, Ph.D., a clinical psychologist and assistant professor of physical medicine and rehabilitation.
«If an individual had the Val / Val combination, then their
performance on a battery of
cognitive tests (conducted long after the injury occurred) was remarkably lower than that of individuals who had the Val / Met or Met / Met combination.»
During another
test, participants demonstrated poorer
performance on a «Stroop task,» a commonly - used measure of executive
cognitive function.
The researchers from the University's Department of Social Policy and Intervention, and the Swedish Institute for Social Research, Stockholm, studied the
test scores measuring
cognitive ability of children aged between 10 and 13, and found they had a strong effect
on a child's subsequent educational
performance.
«Overall,
cognitive consequences research does not support claims for broad transfer of game playing to
performance on cognitive skill
tests,» Mayer wrote.
«It didn't affect their IQ at all; it affected their
performance on an IQ
test,» says Bob Stickgold, a
cognitive neuroscientist at Harvard University.
Cognitive neuroscientist Giorgio Vallortigara of the University of Trento in Italy, who has studied performance of chicks on the seed - pecking test, says, «The idea of a link between lateralization strength and cognitive abilities has been around... for many years, but little comparative and experimental work has been done with animal
Cognitive neuroscientist Giorgio Vallortigara of the University of Trento in Italy, who has studied
performance of chicks
on the seed - pecking
test, says, «The idea of a link between lateralization strength and
cognitive abilities has been around... for many years, but little comparative and experimental work has been done with animal
cognitive abilities has been around... for many years, but little comparative and experimental work has been done with animals.»
The ONTRAC trial assessed ADHD symptom severity using a parent rating scale, and measured
cognitive performance on tests of attention, response inhibition and working memory.
We present five experiments showing that reading literary fiction led to better
performance on tests of affective ToM (experiments 1 to 5) and
cognitive ToM (experiments 4 and 5) compared with reading nonfiction (experiments 1), popular fiction (experiments 2 to 5), or nothing at all (experiments 2 and 5).
Rather than merely a cumulative effect, Meyer says, the two conditions appeared to act in synergy, increasing anxiety behaviors in the mice as well as damaging their
performance on tests for associative memory and other basic
cognitive skills associated in people with a range of neurological disorders, including schizophrenia.
While
cognitive and motivational deficits were previously thought to be distinct domains of the illness, a better understanding of how the lack of motivation influences
cognitive performance might mean it is the lack of motivation, not cognition
on its own, that is causing people to perform poorly
on tests.
History of these syndromes was also associated with poor
performance on the Symbol Digit Modalities
Test (SDMT), which may be caused by the need for more time to process the visual stimuli, thus limiting the time available for the
cognitive task of linking the numerals.»
Study subjects in a room scented with rosemary were found to have enhanced levels of 1,8 - cineole, an organic compound the researchers had previously linked with
cognitive performance, and they performed better
on word puzzles and memory
tests than subjects in an unscented room.
Do you believe, this is what I believe and I could be wrong and you have more experience in this than I do so I'm
testing my hypothesis with an expert, that as you add these toxins, like if you were to say
on an average day someone with no toxins doesn't ever drop a word for their memory but
on a day or a week or when their mercury levels hit one out of 10, maybe they drop one word today, and when they're five out of 10, they drop four words a day, there's a gradual decline in
cognitive performance or physical
performance before we hit the «Oh my god I feel crappy all the time, I have chronic fatigue, fibromyalgia, and I'm a zombie?»
Several studies [3, 4] have found that chocolate consumption reduces risk of dementia and enhances
performance on tests of
cognitive function.
Women in the higher estrone quartiles had lower
performance on two
cognitive tests.
Incredibly, the data also indicated that ClariMem ® effectively reversed the equivalent of 9 years of brain aging, based
on performance on a standardized
cognitive test.
When older people (50 + years) had higher intakes of chocolate and wine (both being a rich source of flavanols) they had better scores
on cognitive tests and slower declines in
performance.
Creatine supplementation had a positive effect
on sleep deprived individuals in terms of both mood and
performance in physical and
cognitive tests.
Subjects were divided into two groups and
tested on a variety of numeracy - and memory - related memory tasks including spatial recall and random number generation to identify a baseline level of
cognitive performance.
Performance on all 4
tests were combined to obtain a global intelligence score, which was regarded as a measure of general
cognitive ability (50).
Research at UCLA found that eating walnuts daily may improve
performance on cognitive function
tests.
The Candle Problem originated as a
cognitive performance test, but some of its different iterations measured the influence of incentives
on problem - solving.
Creative programmes can offer a counter balance to
testing and while their impact
on academic
performance is more difficult to measure their value in terms of
cognitive development and emotional literacy is tangible.
A more direct measure of a country's human capital is the
performance of students
on tests in math and science, something that might be called the average level of «
cognitive skills» among those entering a country's work force.
We used
performance on 12 of these standardized
tests as rough measures of the average level of
cognitive skill in a given country.
The research, led by Charles Hillman, a professor of kinesiology and community health and the director of the Neurocognitive Kinesiology Laboratory at Illinois, suggests that physical activity may increase students»
cognitive control — or ability to pay attention — and also result in better
performance on academic achievement
tests.
Charles Hillman and Darla Castelli, professors of kinesiology and community health, have found that physical activity may increase students»
cognitive control — or ability to pay attention — and also result in better
performance on academic achievement
tests.
Effects of reducing
cognitive load of mathematics
test items
on student
performance.