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Signal detection theory may be useful for characterizing cognitive fatigue in multiple sclerosis

Kessler Foundation researchers use signal detection theory to characterize cognitive fatigue in multiple sclerosis. The study reveals an association between subjective 'state' fatigue, response bias, and brain activation patterns in both MS and control groups. This finding supports the use of signal detection metrics as an objective me...

SourceKessler Foundation·JournalFrontiers in Behavioral Neuroscience·TypeExperimental study·DateMay 31, 2022

Eye-movement tracking glasses are used to evaluate mental stress in first naturalistic study of critical care nurses

A naturalistic study using eye-tracking technology found that intensive care unit nurses experience a higher level of mental workload, especially during the start of shifts, with shorter fixation and more sporadic gaze behavior in stressed nurses.

SourceRensselaer Polytechnic Institute·JournalHuman Factors The Journal of the Human Factors and Ergonomics Society·DateMay 31, 2022

Breastfeeding duration associated with cognition

A new study published in PLOS ONE found a significant association between breastfeeding duration and cognitive test scores in children up to age 14. After adjusting for socioeconomic position and maternal cognitive ability, the researchers discovered that longer breastfeeding durations were linked to higher cognitive scores.

SourcePLOS·JournalPLOS ONE·TypeObservational study·DateMay 25, 2022

Blood adenosine levels as a potential biomarker of white matter disease in a selected population of very low birth weight premature infants

A study found that high blood adenosine levels at 15 days of life correlated with white matter lesions and brain injury in very low birth weight premature infants. Adenosine may play a role in oligodendrocyte maturation and neuronal development, suggesting its potential as a biomarker for complications of prematurity.

SourceBentham Science Publishers·JournalCurrent Pediatric Reviews·DateMay 13, 2022

Effects of stress on adolescent brain’s “triple network”

A new study found that acute stress and repeated traumas in adolescents alter functional connectivity between the default mode, salience, and central executive networks. This may lead to a maladaptive response to stressful experiences and increased neural vulnerability.

SourceElsevier·JournalBiological Psychiatry Cognitive Neuroscience and Neuroimaging·TypeImaging analysis·DateMay 11, 2022

Study finds psychopathic individuals are more likely to have larger striatum region in the brain

A study published in Journal of Psychiatric Research found a significant biological difference between psychopaths and non-psychopaths, with psychopaths having a larger striatum region in the brain. This finding is linked to increased need for stimulation, impulsive behaviors, and higher likelihood of violent behavior.

SourceNanyang Technological University·JournalJournal of Psychiatric Research·TypeExperimental study·DateMay 10, 2022

Seeing members of minority groups everywhere? It's an illusion

A study by Hebrew University researchers reveals that individuals overestimate the presence of minority groups in social settings. This 'diversity illusion' can hinder policies promoting diversity and leads to less support for related initiatives. The research team suggests that awareness and education are key to addressing this bias.

SourceThe Hebrew University of Jerusalem·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateMay 10, 2022

Anesthetic drastically diverts the travels of brain waves

A new study by MIT scientists reveals that propofol anesthesia significantly alters the state of brain waves, with lower frequency delta waves dominating. Higher frequency beta waves decrease in structure and power, with their traveling nature disrupted by the surging delta waves. The findings suggest a profound impact on consciousness.

SourcePicower Institute at MIT·JournalJournal of Cognitive Neuroscience·TypeExperimental study·DateApr 27, 2022

Psychiatric symptoms in Alzheimer´s disease

Researchers found a clear link between elevated amyloid beta levels and the development of anxiety and apathy in Alzheimer's patients. These symptoms occur mainly due to underlying brain changes, not psychological reactions. The study suggests that psychiatric symptoms could be used as alternative outcome measures in treatment trials.

SourceLund University·JournalBiological Psychiatry·DateApr 19, 2022

Online program improves well-being of stroke survivors

A new online program has been shown to improve health-related quality of life among adult stroke survivors. The study found that participants who received access to the program had higher scores on health-related quality of life and reported fewer problems with personal care and daily activities.

SourceFlinders University·JournalPLOS Medicine·TypeRandomized controlled/clinical trial·DateApr 19, 2022

Online program improves well-being of stroke survivors

A randomized controlled trial found that an online program improved health-related quality of life among adult stroke survivors by promoting healthy lifestyle behaviors and reducing disability. The study showed significant benefits in personal care and daily activities for those who received access to the online program.

SourcePLOS·JournalPLOS Medicine·TypeRandomized controlled/clinical trial·DateApr 19, 2022

Association of subjective memory complaints with structural brain abnormalities, cognitive decline among older adults

Researchers found a strong association between subjective memory complaints and larger white matter hyperintensity volumes, indicating abnormal brain structure. The study also showed faster cognitive decline among those with subjective memory complaints, highlighting their importance as an early sign of cognitive impairment.

SourceJAMA Network·JournalJAMA Network Open·DateApr 15, 2022

Machine learning predicts conduct disorder in kids

A new study uses a machine-learning approach to assess risk factors across biological, psychological, and social domains to predict the development of conduct disorder in children. The model correctly predicted CD two years later with over 90% accuracy.

SourceElsevier·JournalBiological Psychiatry Cognitive Neuroscience and Neuroimaging·TypeExperimental study·DateApr 12, 2022

Certain personality traits associated with cognitive functioning late in life

Research by the American Psychological Association found that individuals with high levels of conscientiousness and low neuroticism tend to have better cognitive functioning late in life. Those high in extraversion may also maintain normal cognitive function longer, while high neuroticism is associated with decreased healthy cognition.

SourceAmerican Psychological Association·JournalJournal of Personality and Social Psychology·DateApr 11, 2022

Study reports potential target and compounds to slow the development of Alzheimer's disease

A study found a shift in the profile of specialized lipid mediators from pro-resolving to pro-inflammatory in patients with cognitive impairment, correlating with severity of cognition impairment. The researchers identified novel mechanisms of brain health and potential therapeutic targets for slowing down Alzheimer's disease onset.

SourceLouisiana State University Health Sciences Center·JournalCellular and Molecular Neurobiology·TypeObservational study·DateApr 6, 2022

Alas, poor Yorick! I knew him...

Researchers at Kyoto University found that chimpanzees exhibit a preference for faces and skulls of their own species, similar to previous studies with African elephants. This suggests the presence of a face module in chimpanzee brains that detects and processes facial cues.

SourceKyoto University·JournalRoyal Society Open Science·TypeExperimental study·DateApr 6, 2022

New study reveals pandemic-specific depression and anxiety among individuals with multiple sclerosis

A new study published in Multiple Sclerosis and Related Disorders found that individuals with multiple sclerosis experienced increased depression, anxiety, and loneliness during the COVID-19 pandemic. The research suggests that pandemic-related stress may exacerbate mental health issues in MS patients.

SourceKessler Foundation·JournalMultiple Sclerosis and Related Disorders·TypeSurvey·DateMar 23, 2022