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ScienceDaily Intelligence 14.05.2021 MESZ 19:42:08
Our dreams' weirdness might be why we have them, argues new AI-inspired theory of dreaming
Why we dream is a divisive topic within the scientific community, and the neuroscience field is saturated with hypotheses. Inspired by techniques used to train deep neural networks, a neuroscience researcher argues for a new theory of dreams: the overfitted brain hypothesis. The hypothesis suggests that the strangeness of our dreams serves to help our brains better generalize our day-to-day experiences. mehr ...

ScienceDaily Intelligence 14.05.2021 MESZ 19:41:14
New complexity of traveling brain waves in memory circuits
Researchers have observed a new feature of neural activity in the hippocampus - the brain's memory hub - that may explain how this vital brain region combines a diverse range of inputs into a multi-layered memories that can later be recalled. mehr ...

ScienceDaily Intelligence 13.05.2021 MESZ 23:35:38
Politically polarized brains share an intolerance of uncertainty
A new study on political polarization showed how an aversion to uncertainty is often associated with black-and-white political views. mehr ...

ScienceDaily Intelligence 13.05.2021 MESZ 21:48:21
Study of 70,000 individuals links dementia to smoking and cardiovascular disease
In the largest study of the associations between smoking and cardiovascular disease on cognitive function, researchers found both impair the ability to learn and memorize; and that the effects of smoking are more pronounced among females, while males are more impaired by cardiovascular disease. mehr ...

ScienceDaily Intelligence 13.05.2021 MESZ 16:00:06
New study reveals where memories of familiar places are stored in the brain
As we move through the world, what we see is seamlessly integrated with our memory of the broader spatial environment. How does the brain accomplish this feat? A new study reveals that three regions of the brain in the posterior cerebral cortex, which the researchers call 'place-memory areas,' form a link between the brain's perceptual and memory systems. mehr ...

ScienceDaily Anthropology 12.05.2021 MESZ 20:28:52
Who fought in the ancient Greek Battles of Himera? Chemical evidence provides answers
Geochemical evidence reveals that armies in the Battles of Himera were a mixture of locals and outsiders, according to a new study. These data contradict certain claims made in historical accounts by ancient Greek writers. mehr ...

ScienceDaily Anthropology 12.05.2021 MESZ 20:28:49
Ancient Easter Island communities offer insights for successful life in isolation
Anthropologists explore how complex community patterns in Easter Island helped the isolated island survive from its settlement in the 12th to 13th century until European contact. mehr ...

ScienceDaily Intelligence 12.05.2021 MESZ 17:57:03
Peptide could allow medical marijuana to relieve pain without side effects
Many people live with chronic pain, and in some cases, cannabis can provide relief. But the drug also can significantly impact memory and other cognitive functions. Now, researchers have developed a peptide that, in mice, allowed THC, the main component of Cannabis sativa, to fight pain without the side effects. mehr ...

ScienceDaily Anthropology 12.05.2021 MESZ 17:56:39
Ancient gut microbiomes may offer clues to modern diseases
Scientists have found dramatic differences between gut microbiomes from ancient North American peoples and modern microbiomes, offering new evidence on how these microbes may evolve with different diets. mehr ...

ScienceDaily Anthropology 12.05.2021 MESZ 14:34:14
Ancestors may have created 'iconic' sounds as bridge to first languages
The 'missing link' that helped our ancestors to begin communicating with each other through language may have been iconic sounds, rather than charades-like gestures -- giving rise to the unique human power to coin new words describing the world around us, a new study reveals. mehr ...

ScienceDaily Intelligence 12.05.2021 MESZ 14:34:09
Petting therapy dogs enhances thinking skills of stressed college students
Programs exclusively focused on petting therapy dogs improved stressed-out students' thinking and planning skills more effectively than programs that included traditional stress-management information, according to new research. mehr ...

ScienceDaily Intelligence 11.05.2021 MESZ 18:37:27
Meditative practice and spiritual wellbeing may preserve cognitive function in aging
It is projected that up to 152 million people worldwide will be living with Alzheimer's disease (AD) by 2050. To date there are no drugs that have a substantial positive impact on either the prevention or reversal of cognitive decline. A growing body of evidence finds that targeting lifestyle and vascular risk factors have a beneficial effect on overall cognitive performance. A new review examines research that finds spiritual fitness, a new concept in medicine that centers on psychological and spiritual wellbeing, and Kirtan Kriya, a simple 12-minute meditative practice, may reduce multiple risk factors for AD. mehr ...

WISSENSCHAFT aktuell Mensch 11.05.2021 MESZ 01:00:00
Abstand halten im Lokal: Alkohol lässt Fremde näher rücken
Studie bestätigt, dass gemeinsamer Alkoholkonsum die normale körperliche Distanz zu fremden Menschen verringert und damit eine Übertragung von Coronaviren über die Atemluft verstärken könnte mehr ...

ScienceDaily Anthropology 10.05.2021 MESZ 22:14:48
Turns out developing a taste for carbs wasn't a bad thing
A new study looking at the evolutionary history of the human oral microbiome shows that Neanderthals and ancient humans adapted to eating starch-rich foods as far back as 100,000 years ago, which is much earlier than previously thought. mehr ...

ScienceDaily Intelligence 10.05.2021 MESZ 16:43:48
New finding suggests cognitive problems caused by repeat mild head hits could be treated
A neurologic pathway by which non-damaging but high frequency brain impact blunts normal brain function and causes long-term problems with learning and memory has been identified. The finding suggests that tailored drug therapy can be designed and developed to reactivate and normalize cognitive function, say neuroscientists. mehr ...

ScienceDaily Intelligence 10.05.2021 (8 Tage)
Managing children's weight, blood pressure and cholesterol protects brain function mid-life
Having high blood pressure, high cholesterol and/or obesity from childhood through middle age were linked to poorer brain function by middle age. These cardiovascular risk factors were linked with low memory, learning, visual processing, attention span, and reaction and movement time. Strategies to prevent heart disease and stroke should begin in childhood to promote better brain health by middle age. mehr ...

ScienceDaily Intelligence 10.05.2021 (8 Tage)
Serotonin transporters increase when depression fades
Low levels of serotonin in the brain are seen as a possible cause of depression and many antidepressants act by blocking a protein that transports serotonin away from the nerve cells. A brain imaging study now shows that the average level of the serotonin transporter increased in a group of 17 individuals who recovered from depression after cognitive behavioral therapy. mehr ...

ScienceDaily Intelligence 07.05.2021 (10 Tage)
Damage to white matter is linked to worse cognitive outcomes after brain injury
A new study challenges the idea that gray matter (the neurons that form the cerebral cortex) is more important than white matter (the myelin covered axons that physically connect neuronal regions) when it comes to cognitive health and function. The findings may help neurologists better predict the long-term effects of strokes and other forms of traumatic brain injury. mehr ...

ScienceDaily Anthropology 06.05.2021 (11 Tage)
Most human origins stories are not compatible with known fossils
In the 150 years since Charles Darwin speculated that humans originated in Africa, the number of species in the human family tree has exploded, but so has the level of dispute concerning early human evolution. A new review looks at the major discoveries in hominin origins since Darwin's works and argues that fossil apes can inform us about essential aspects of ape and human evolution, including the nature of our last common ancestor. mehr ...

ScienceDaily Anthropology 06.05.2021 (11 Tage)
Engineers and biologists join forces to reveal how seals evolved to swim
Seals and sea lions are fast swimming ocean predators that use their flippers to literally fly through the water. But not all seals are the same: some swim with their front flippers while others propel themselves with their back feet. mehr ...

ScienceDaily Anthropology 06.05.2021 (11 Tage)
The cerebellum may have played an important role in the evolution of the human brain
The cerebellum -- a part of the brain once recognized mainly for its role in coordinating movement -- underwent evolutionary changes that may have contributed to human culture, language and tool use, according to a new study. mehr ...

ScienceDaily Anthropology 06.05.2021 (11 Tage)
Independent evolutionary origins of vertebrate dentitions
The origins of a pretty smile have long been sought in the fearsome jaws of living sharks which have been considered living fossils reflecting the ancestral condition for vertebrate tooth development and inference of its evolution. However, this view ignores real fossils which more accurately reflect the nature of ancient ancestors. mehr ...

ScienceDaily Intelligence 06.05.2021 (11 Tage)
Exercise aids the cognitive development of children born preterm
A premature start in life can cause problems even into teenage years. A study indicates that training motor skills in these children helps even when they are older. mehr ...

ScienceDaily Anthropology 06.05.2021 (11 Tage)
First member of ill-fated 1845 Franklin expedition is identified by DNA analysis
The identity of the skeletal remains of a member of the 1845 Franklin expedition has been confirmed using DNA and genealogical analyses by a team of researchers. mehr ...

ScienceDaily Intelligence 06.05.2021 (11 Tage)
Alzheimer's study: A Mediterranean diet might protect against memory loss and dementia
Alzheimer's disease is caused by protein deposits in the brain and the rapid loss of brain matter. But a Mediterranean diet rich in fish, vegetables and olive oil might protect the brain from these disease triggers. mehr ...