A new study suggests that life satisfaction has limited benefits for cognitive function in older adults experiencing health or socioeconomic challenges. High life satisfaction was associated with increased cognitive functioning among most individuals, but it was less beneficial for those with low SES, poor health, or adverse psychologi...
Researchers identify somatostatin-positive interneurons as crucial in maintaining cognitive function, and their dysfunction leads to impaired memory and learning. The study uses a toxin to ablate these cells, resulting in mice exhibiting cognitive deficits similar to those seen in aging humans.
A study of 1,500 participants found that certain brain regions, including the hippocampus, exhibit stronger activation in individuals with better memory performance. The researchers identified functional networks in the brain linked to memory performance, shedding light on individual differences in memory recall.
A study using ultra-high field 7 Tesla MRI found that the locus coeruleus is essential for regulating REM sleep, with increased activity during wakefulness associated with poorer quality sleep. This effect was particularly pronounced in older individuals (50-70 years), who were more likely to experience insomnia.
A study published in Biological Psychiatry: Cognitive Neuroscience and Neuroimaging found that greater activation in the right inferior frontal gyrus predicts better recovery from early PTSD symptoms. This breakthrough suggests a potential role for cortical/cognitive regions in regulating fear and PTSD development.
SourceElsevier·JournalBiological Psychiatry Cognitive Neuroscience and Neuroimaging·TypeImaging analysis·DateSep 21, 2023
A study found that two brain areas, typically associated with language processing, are also linked to social-semantic working memory. This challenge traditional views of language comprehension and its connection to social cognition.
A randomized clinical trial shows cognitive-behavioral therapy (CBT) reduces fibromyalgia pain and improves daily living. CBT alters brain connectivity to reduce catastrophizing, a key contributor to fibromyalgia symptoms.
Researchers developed A-CensNet, a fusion model predicting cognitive scores from movie-watching fMRI and eye-tracking data. The model outperforms individual modalities and leading techniques, suggesting synergy between brain functionality and behavior.
Researchers found that a two-nap schedule of 90-minute and 30-minute naps can help counteract drowsiness and fatigue during long night shifts. This strategy may also be beneficial for new parents experiencing sleep deprivation.
A study on songbird species reveals that complex vocal learning is associated with better problem-solving skills and larger brains. The research found a robust relationship between vocal learning abilities, problem-solving, and brain size, even when considering individual variation and other factors.
In a new study, researchers deciphered mice's behavior during reward-based learning tasks, finding they persistently blend multiple strategies. The findings suggest mice do not fully adopt optimal approaches, and their ability to shift between strategies is crucial for understanding their decision-making process.
Researchers have confirmed that human brains use Bayesian inference to process visual information, allowing for precise interpretation and speed. This natural ability enables people to outperform machines in tasks such as recognizing objects in images, with implications for fields like artificial intelligence and clinical neurology.
A study published in Sleep Medicine found that arousal disorders, including sexsomnia and sleep eating, often go untreated due to a lack of consensus on best treatments. Cognitive behavioral therapy and sleep hygiene have shown effectiveness in managing these conditions, which can result in injuries or weight gain.
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.
A new study suggests that transcranial ultrasound stimulation can be used to change specific types of activity within the brain, paving the way for targeted treatments of mental health conditions. The research found that TUS induced significant changes in GABA concentration and altered communication between brain regions.
A new study uses brain imaging to explore the neural underpinnings of uncertainty processing in OCD, finding that patients struggle with certainty and decision-making, particularly when outcomes are more certain. This understanding may offer new hope for developing therapies targeting uncertainty processing in OCD.
SourceElsevier·JournalBiological Psychiatry Cognitive Neuroscience and Neuroimaging·TypeImaging analysis·DateSep 12, 2023
A study by Paolo Bartolomeo and Jianghao Liu investigated the nature of aphantasia, finding that individuals with aphantasia have normal perception and memory capabilities but struggle with visual mental imagery. They propose that phenomenal consciousness may play a role in this phenomenon.
A soft ball designed to support mental health has been invented, giving users a tangible representation of their breath to regulate emotions. The device, called PAWS, shows significant improvement in reducing anxiety and increasing protection against worry-induced thoughts, with an average 75% reduction in anxiety.
Researchers have developed a Principal Odor Map (POM) that models the connections between an odorant's chemical structure and its perceptual property. The map performs as well as trained human sniffers in describing odor quality, enabling the prediction of odor intensity and similarity.
A new method can detect drivers' attention levels from their eye movements, enabling the development of more effective takeover signals. The study found that drivers who are engrossed in on-screen activities take longer to respond to warnings, highlighting a potential safety concern.
Research finds that 75% of boys with fragile X meet criteria for co-occurring autism, but only 31% are identified in community settings. Early diagnosis is crucial to access services improving outcomes and quality of life.
A new study will examine the role of lifestyle physical activity in cognition among insufficiently active older adults with higher risks for Alzheimer’s or related dementias. The research aims to identify achievable lifestyle health behaviors that can reduce the risk of these conditions.
The study found a significant decline in the prevalence of serious later-life cognitive impairments among Black Americans, narrowing racial disparities. However, racial disparities persisted in activities of daily living and functional limitations. Improved air quality may have contributed to the narrowing of disparities in cognitive i...
Research by Kessler Foundation team found that processing speed plays a role in benefit from the modified Story Memory Technique on verbal list learning but not on prose memory tasks. This suggests that treating deficits in processing speed may lead to optimal outcomes for individuals with traumatic brain injury.
A new study found that children's mental health and wellbeing gradually worsened over the past six years, with measures of life satisfaction, optimism, and emotional regulation declining consistently since 2020. The COVID-19 pandemic has had a profound impact on young Australians, particularly those in higher year levels and from lower...
A study found that dogs are more sensitive to speech directed at them than adult-directed speech, with a greater response to female voices. The researchers measured dog brain activity via fMRI and found that the sensitivity was affected by voice pitch and variation.
A new special issue of the Journal of Huntington’s Disease highlights the critical impact of sleep dysfunction on HD patients. Disrupted sleep can alter metabolism, increase vulnerability to infection, and exacerbate disease outcomes.
Scientists have identified platelet factor 4 (PF4) as a common messenger for the cognitive benefits of young blood transfusion, exercise, and the longevity hormone klotho. Studies show that PF4 calms down the aged immune system, reducing inflammation and promoting brain plasticity and cognition.
Researchers found that participants with MCI performed significantly worse on a test of four types of decision-making abilities compared to those without. The study's findings have broad implications for choices about finances, health care, and other daily decisions.
Researchers used machine learning algorithms to analyze brain imaging data and identify changes associated with autism spectrum disorder. The study found that the methodology could determine ASD diagnosis with above 95% accuracy, highlighting potential for improved diagnostic methods.
Researchers studied how tastes influence creativity by analyzing brain networks and individual preferences. They found that the subjective evaluation of ideas plays a crucial role in creativity, and that individuals have different creative profiles related to their fields of activity.
A study found that longer duration of type 2 diabetes is associated with decreased brain structure and increased white matter hyperintensities. Despite this, cognition was not affected, highlighting the need for early screening for cognitive disorders in diabetic patients.
Researchers have identified a therapeutic target for Alzheimer's disease by finding that inhibiting an ion pump can slow down cognitive decline and partially restore brain function. The study's findings suggest that maintaining the ion pump could be key to preventing or reversing the disease.
Researchers at Lund University discovered that psychedelic substances LSD and ketamine cause simultaneous synchronisation of neurons in several brain regions. This phenomenon is linked to the psychedelic experience and may hold clues for understanding psychoses and consciousness.
Researchers from HSE University challenged the famous Libet studies on free will, revealing a lack of correlation between brain activity and decision-making. The study used advanced EEG techniques to investigate the timing of intention awareness and final decision, finding that the latter could be influenced by experimental procedures.
Researchers propose GABA-modulating treatments as potential therapeutic targets for depression's cognitive and affective symptoms. The study highlights the importance of GABA-A receptors in regulating balance and signals between neurons, and suggests compounds that promote or inhibit these receptors may alleviate depressive symptoms.
A recent study revealed that attention plays a crucial role in shaping our conscious experience of the world. Researchers found that manipulating attention can modify an individual's ability to consciously perceive visual stimuli, highlighting the intricate relationship between attention and conscious perception. By using advanced neur...
Researchers at UC Irvine found that a two-hour nightly fragrance exposure improved memory and cognitive function in older adults. The study showed a 226% increase in cognitive performance compared to the control group.
A new study from the University of Arizona has found that remembering events can trigger theta oscillations in the brain's hippocampus region, suggesting that memory is a strong driver of these rhythmic signals. This discovery could lay the foundations for cognitive impairment therapy and improve memory.
A study published in Annals of Neurology suggests that a protein in spinal fluid can predict mild cognitive impairment and dementia years before symptoms appear. The findings may offer new targets for treating or preventing Alzheimer's disease and other dementias.
A study of 463 infants aged 8-36 months found that those with smaller vocabularies and poorer cognitive skills nap more frequently. Reducing naps for these children may not improve brain development, suggesting a need to re-evaluate sleep recommendations.
A study by University of Toronto researchers found that child language development and language evolution share a common cognitive foundation, based on a core knowledge base. The team built a computational model that predicts word meaning extension patterns across languages and time scales, highlighting the role of visual, associative,...
Researchers discovered that adult and aged mice demonstrated improved performance in behavioral tasks after environmental enrichment, with MSK1 playing a vital role. The study highlights the importance of MSK1 in converting positive experiences into cognitive benefits across the lifespan.
Children with greater language diversity are more sensitive to contextual factors when assessing an informant's reliability. This study found that bilingual children selectively trust informants who have provided accurate cues in the past, but not those who provide inaccurate cues. Bilingualism may enhance social-cognitive development ...
A study by UCLA psychologists found that consumers tend to remember marketing claims about products being 'clinically studied' as 'clinically proven'. This can lead to people wasting money on ineffective or useless products. The study highlights the importance of carefully reading product labels and consulting medical professionals.
Researchers created a simplified mathematical analysis to visualize neuron activities in daily experiences, employing state-space analysis. This technique allows for visualization of neuronal activity using general statistical software, revealing changes in brain activity over short time periods.
A Michigan Medicine study in Texas found that 61.4% of older adults with cognitive impairment are still driving, but one-third of caregivers have concerns about their care recipient's ability to drive safely. Researchers emphasize the need for open discussions between caregivers and healthcare professionals to ensure safety.
A new poll of people aged 65-80 found that 80% believe cognitive tests can give early warning signs of memory decline and 60% think healthcare providers should offer them annually. Despite this, only 1 in 5 have had a cognitive screening test in the past year.
Scientists have identified a region of the brain where sustained visual images are retained during perception. This finding may help doctors determine whether coma patients are still aware of their surroundings and could lead to treatments for disorders of consciousness.
Researchers at Lund University have developed a spinal fluid test to detect Lewy body disease before symptoms emerge. The study found that nearly ten percent of individuals without initial cognitive or motor difficulties had Lewy bodies in their brains, highlighting the potential for early detection and treatment.
Researchers developed MemTrax, a continuous recognition test for advanced cognitive impairment screening. The test quickly and accurately quantifies memory processing, storage, and retrieval, providing precise assessments of severity and rate of change over time.
A new study published in Brain Communications found that cognitive reserve can protect brain function in patients with brain tumors. The research revealed that higher levels of education, occupation, and urban environment are associated with improved neuropsychological performance.
Researchers identified three neurobehavioral profiles that distinguish individuals with elevated mania vulnerability based on reward sensitivity and sleep-circadian characteristics. These profiles can help detect mania risk and provide targets for early interventions.
SourceElsevier·JournalBiological Psychiatry Cognitive Neuroscience and Neuroimaging·TypeImaging analysis·DateJul 11, 2023
Researchers at Texas A&M University found that substance use impairs cognitive flexibility by inhibiting specific neurons. Chronic cocaine or alcohol use alters the local inhibitory brain circuit, leading to decreased cognitive flexibility and increased risk of academic deficits and lower quality of life.
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.
A randomized controlled study found that transitional employment programs had no significant impact on recidivism, but participants were more likely to be employed. Cognitive behavioral interventions showed marginal benefits in reducing reconviction odds.
Research from UTHealth Houston reveals that different brain regions are engaged when processing simple versus complex melodies and sentences. The study used intracranial electrodes to map brain activity during music and language tasks, finding shared temporal lobe activity but distinct sensitivities to melodic and syntactic complexity.
Early hallucinations in Parkinson's disease patients are linked to faster cognitive decline. A study published in Nature Mental Health found that those with early hallucinations experience more rapid cognitive decline over the next five years. The researchers hope to develop neurotechnology methods for early detection and treatment.
A team of scientists identified the dorsal medial prefrontal cortex as a key region in predicting rumination, which is linked to depression. The study's findings suggest that dynamic connectivity between brain regions can be used to decode rumination patterns.
A new study published in PLOS ONE found that kindness meditation improves the retrieval of specific personal memories in people with a history of depression. After four weeks, participants in the meditation group showed increased memory specificity and reduced rumination compared to those in the control condition.