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Eye-opener: Pupils enlarge when people focus on tasks

A recent study published in Attention, Perception & Psychophysics found a correlation between pupil dilation and working memory. Researchers at the University of Texas at Arlington discovered that individuals with better working memory had larger pupil dilations during tasks, indicating improved focus and attention.

SourceUniversity of Texas at Arlington·JournalAttention Perception & Psychophysics·TypeObservational study·DateApr 22, 2024

Paper: To understand cognition—and its dysfunction—neuroscientists must learn its rhythms

The study suggests that understanding brain rhythms is critical for developing effective treatments for neurological disorders like schizophrenia, epilepsy, and Parkinson's. Cognition emerges from the coordinated activity of millions of neurons via electric fields, known as brain waves or rhythms.

SourcePicower Institute at MIT·JournalCurrent Opinion in Behavioral Sciences·TypeLiterature review·DateApr 17, 2024

‘Curved’ walking and a depth camera: new tool detects early cognitive decline

A first-of-its-kind study uses gait analysis to detect subtle impairments in older adults with mild cognitive impairment, suggesting curved path walking as a more sensitive detection method. The novel system employs a non-invasive depth camera to record gait and provides detailed information on functional performance.

SourceFlorida Atlantic University·JournalJournal of Alzheimer s Disease Reports·TypeImaging analysis·DateMar 12, 2024

Lack of focus doesn’t equal lack of intelligence — it’s proof of an intricate brain

Researchers at Brown University's Carney Institute for Brain Science discovered how the brain coordinates attention and filtering functions to perform complex tasks. The study found that multiple brain regions work together to adjust focus and filter out distractions, providing insight into human cognitive flexibility.

SourceBrown University·JournalNature Human Behaviour·TypeExperimental study·DateMar 8, 2024

How parents can help prevent the development of ADHD symptoms

A new study published by a University of Waterloo researcher suggests that specific parenting behaviors, such as guiding verbal and physical cues, can help break down pathways leading to ADHD symptoms. Early targeted intervention is crucial in predicting the development of ADHD symptoms in children with exuberant temperament.

SourceUniversity of Waterloo·JournalResearch on Child and Adolescent Psychopathology·DateFeb 15, 2024

Performance in 20-meter shuttle run test is positively associated with brain health in children with overweight or obesity

Research suggests that high aerobic fitness in children with overweight or obesity is linked to improved executive functions, academic performance, and larger brain volume. The 20-meter shuttle run test is a reliable predictor of brain health outcomes in this population.

SourceUniversity of Jyväskylä - Jyväskylän yliopisto·JournalScandinavian Journal of Medicine and Science in Sports·DateJan 29, 2024

Bariatric surgery may slow cognitive decline for people with obesity

Researchers found that cognition scores remained stable two years after bariatric surgery, while secondary executive function tests showed improvement. However, one memory assessment declined following surgery. Further studies are needed to confirm the findings and understand how best to treat cognitive decline associated with obesity.

SourceMichigan Medicine - University of Michigan·JournalThe journal of nutrition health & aging·TypeObservational study·DateJan 8, 2024

Cocoa extract supplement found to have benefits for cognition among older adults with lower diet quality

A new study published in the American Journal of Clinical Nutrition suggests that taking cocoa extract supplements containing 500 mg of flavanols daily may improve cognitive function in older adults with lower habitual diet quality. In contrast, participants with healthy dietary patterns showed no cognitive benefits.

SourceMass General Brigham·JournalAmerican Journal of Clinical Nutrition·TypeRandomized controlled/clinical trial·DateDec 7, 2023

Breakthrough study shows exercise improves cognitive health for people with Down syndrome

A breakthrough study found that light exercise can improve cognitive health in adults with Down syndrome, leading to improved information processing and attention. After just eight weeks of walking, participants showed significant increases in physical fitness and reductions in errors during cognitive assessments.

SourceAnglia Ruskin University·JournalInternational Journal of Environmental Research and Public Health·DateNov 29, 2023

OCD therapy retrains the brain

A new study finds that exposure and response prevention (EX/RP) therapy for OCD improves cognitive control by strengthening connections between brain networks. This breakthrough sheds light on the mechanisms underlying EX/RP's effectiveness in treating OCD, paving the way for targeted therapies.

SourceElsevier·JournalBiological Psychiatry Cognitive Neuroscience and Neuroimaging·TypeImaging analysis·DateNov 29, 2023

Parkinson disease and normal aging

Researchers investigate centro-cingulate network changes and cholinergic innervation deficits in Parkinson disease and normal aging. Studies reveal significant correlations between centro-cingulate changes and cognitive impairments, motor symptoms, and age.

SourceImpact Journals LLC·JournalAging-US·TypeCommentary/editorial·DateNov 1, 2023

University of Cincinnati study: Strawberry consumption may reduce dementia risk for middle-aged individuals

A recent study published in Nutrients found that daily strawberry consumption can improve cognitive performance and reduce depressive symptoms in middle-aged adults. The research, led by Professor Robert Krikorian, suggests that strawberries contain antioxidants and micronutrients that may help mitigate the risk of dementia.

SourceUniversity of Cincinnati·JournalNutrients·TypeRandomized controlled/clinical trial·DateNov 1, 2023

Virtual cognitively enhanced tai chi program improves cognition and executive function in older adults with mild cognitive impairment

A virtual, home-based exercise program using cognitively enriched tai ji quan improved global cognition and reduced walking interference associated with dual tasking in older adults with mild cognitive impairment. The intervention also showed favorable improvements in cognition, function, executive function, and working memory.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeNews article·DateOct 30, 2023

Assessing ‘readiness’ by tracking fluctuations in daily sleep duration and their effects on daily mood, motivation, and sleepiness

Researchers found that longer nights of better sleep correlate with improved mood, motivation, and reduced sleepiness. Irregular sleep patterns had a negative effect on mental well-being, while daytime naps may alleviate inadequate nocturnal sleep's effects.

SourceNational University of Singapore, Yong Loo Lin School of Medicine·JournalSleep Medicine·TypeMeta-analysis·DateOct 13, 2023

Contributions to white matter injury in Alzheimer’s disease

Researchers highlight microvascular contributions to white matter injury in Alzheimer's disease, sparking calls for exploration of connections between AD, WM injury and cerebral small vessel disease. The study emphasizes the critical need to define mechanisms and diagnostic features of mixed vascular and AD neuropathological change.

SourceImpact Journals LLC·JournalAging-US·TypeCommentary/editorial·DateSep 12, 2023

Real-world context increases capacity for remembering colors

A study led by Dartmouth College researchers found that participants' color memory improved when stimuli were meaningful and part of real-world objects. The results demonstrate that the capacity for visual working memory of colors is more continuous and flexible than previously thought, with better recall of colors in meaningful contexts.

SourceDartmouth College·JournalPsychological Science·TypeExperimental study·DateJul 10, 2023

Serotonin booster leads to increased functional brain connectivity

A new study found that the serotonin booster prucalopride increased functional brain connectivity in healthy adults, particularly between cognitive networks. The results suggest that prucalopride may improve cognitive function and have therapeutic potential for depression patients.

SourceElsevier·JournalBiological Psychiatry Cognitive Neuroscience and Neuroimaging·TypeExperimental study·DateJun 13, 2023

Association between heart attack and cognition

A recent study of 30,465 adults without a history of heart attack or dementia found that those who experienced an MI had a faster rate of decline in global cognition, memory, and executive function compared to those without an MI. The study suggests that preventing heart attacks may be crucial for maintaining long-term brain health.

SourceJAMA Network·JournalJAMA Neurology·DateMay 30, 2023

Food insecurity and cognitive trajectories in older adults

A recent study published in JAMA Network Open found that food insecurity is associated with a decline in executive function among older adults. The research used data from 3,037 community-dwelling Medicare beneficiaries and suggests that interventions to increase healthy food access may be crucial in mitigating cognitive decline.

SourceJAMA Network·JournalJAMA Network Open·DateMar 24, 2023

Young children develop better learning skills when taught by teachers of the same ethnicity, national US study suggests

A new national US study suggests that young children who are taught by a teacher of the same ethnicity as themselves develop better learning and problem-solving skills by the age of seven. The effect was most pronounced in Black and Latinx children, with improved working memory and reading achievement scores.

SourceTaylor & Francis Group·JournalEarly Education and Development·DateMar 17, 2023

COVID-19 can cause 'face blindness'

A Dartmouth study found that COVID-19 can cause 'prosopagnosia,' or face blindness, and impairments in navigational abilities. Researchers worked with a patient who experienced difficulty recognizing faces and navigating, leading to dissociation between face recognition and cognitive map representation.

SourceDartmouth College·JournalCortex·TypeCase study·DateMar 13, 2023

Aging | Epigenetic aging is associated with aberrant neural oscillatory dynamics serving visuospatial processing in people with HIV

A new study finds epigenetic aging is associated with aberrant neural oscillatory dynamics serving visuospatial processing in people with HIV. Participants showed accelerated biological age and different brain activity patterns compared to controls, suggesting a link between biological aging and neural function in PWH.

SourceImpact Journals LLC·JournalAging-US·TypeObservational study·DateJan 5, 2023

Researchers gain a better understanding of how the most commonly used ADHD medication works

A new study has shed light on how the most commonly used ADHD medication, methylphenidate, works in the brain. The research found that methylphenidate increases dopamine levels in the nucleus accumbens and improves coordinated brain network activity, resulting in more stable sustained attention in children with ADHD.

SourceElsevier·JournalBiological Psychiatry Cognitive Neuroscience and Neuroimaging·TypeObservational study·DateDec 8, 2022