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Brain lays foundation for reason in childhood

Carter Wendelken, Silvia Bunge and colleagues previously found that coordinated activity of the rostrolateral prefrontal cortex ( RLPFC ) and inferior parietal lobe (IPL) is associated with the ability to solve novel problems in adolescents 12 years of age and older. However, it remained unclear whether this functional connectivity is preceded by or drives the development of white matter connections (structural connectivity) and how these changes related to reasoning ability. Analyzing longitudinal data from multiple studies of children ages 6 to 22, the researchers found that strong structural connectivity between RLPFC and IPL in younger children is associated with both increased functional connectivity and improved reasoning in adolescence and adulthood . The results suggest that the anatomical connection between these regions develops during the early school years and enables coordinated brain activity that supports an important cognitive function later in life. for mor...
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Women have more active brains than men

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Aspect view of the mind summarizing blood stream outcomes from tens of 1000's of research topics exhibits elevated blood stream in girls in comparison with males, highlighted within the crimson coloured areas of the mind: the cingulate gyrus and precuneus. Males on this picture have greater blood stream in blue coloured areas -- the cerebellum . Credit score: Journal of Alzheimer's Illness Within the largest useful mind imaging research up to now, the Amen Clinics (Newport Seaside, CA) in contrast 46,034 mind SPECT (single photon emission computed tomography) imaging research supplied by 9 clinics, quantifying variations between the brains of women and men. The research is revealed within the  Journal of Alzheimer's Illness . Lead writer, psychiatrist Daniel G. Amen, MD, founding father of Amen Clinics, Inc., commented, "It is a essential research to assist perceive gender-based mind variations. The quantifiable variations we recognized bet...
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Tiny molecule has big effect on brain's ability to learn

In a study involving researchers from the Queensland Brain Institute, scientists have shed light on the role that small molecules called microRNAs play in early brain development. The research found a close link between early brain developmental events and changes in cognitive function in adulthood. In animal models, the researchers found that using microRNA to disrupt cells in the brain's prefrontal cortex -- a region associated with complex planning and decision-making -- affected learning and memory later in life. Disruptions to the ability of developing brain cells to form branching connections with other cells, using a specific microRNA -- miR-9, was associated with an increase in the strength of fear-related memories in adulthood. QBI's Dr Timothy Bredy, a co-author of the study, said the study deepened understanding of microRNAs and their important roles in brain development. "If you think of deoxyribonucleic acid, or DNA, as the blueprint of biological...
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MRI reveals striking brain differences in people with genetic autism

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Instance pictures for a management participant, a deletion service, and a duplication service. Within the sagittal picture of the deletion service, the thick corpus callosum , dens and craniocervical abnormality, and cerebellar ectopia are proven. For the duplication service, the sagittal picture exhibits the skinny corpus callosum and the axial picture exhibits the elevated ventricle dimension and decreased white matter quantity. Credit score: Radiological Society of North America Within the first main research of its sort, researchers utilizing MRI have recognized structural abnormalities within the brains of individuals with one of the crucial widespread genetic causes of autism, based on a brand new research printed on-line within the journal  Radiology . The abnormalities seen on mind pictures corresponded to cognitive and behavioral impairments within the research group, suggesting a future position for imaging in figuring out individuals with autism ...
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Playing with your brain: Negative impact of some action video games

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Sure human-computer interactions can lower gray matter within the mind, suggests new analysis, and violent video video games stands out as the worst offenders. Credit score: © kerkezz / Fotolia Human-computer interactions, equivalent to taking part in video video games, can have a unfavorable affect on the mind, says a brand new Canadian research revealed in Molecular Psychiatry . For over 10 years, scientists have advised us that motion online game gamers exhibit higher visible consideration, motor management talents and short-term reminiscence. However, might these advantages come at a value? In a sequence of research Dr. Véronique Bohbot (Douglas Psychological Well being College Institute; CIUSSS de l'Ouest-de-l'Île-de-Montréal) and Dr. Greg West (Université de Montréal) reveal that the way in which that motion (first-person shooter) online game gamers use their brains to navigate modifications the affect the video games have on their nervous syst...
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Sleep makes it possible for babies to associate words with content, and not with noise

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After a noon nap in infants who fell asleep after the training phases, the mind may differentiate between the precise and fallacious time period for a brand new object, on this case a brand new model of a 'Bofel' or a 'Zuser'. Credit score: © MPI CBS Whereas infants sleep, astonishing processes happen of their brains. Scientists on the Max Planck Institute for Human Cognitive and Mind Sciences ( MPI CBS ) in Leipzig noticed that infants achieve associating a that means with a phrase between the age of six and eight months -- a functionality which till now was identified for older kids and adults. Reminiscence which is assigned to the that means of phrases passes via the identical levels throughout sleep that additionally occur in typical lexical improvement: So-called protowords which mix solely concurrently occurring visible and acoustic stimuli turn into actual phrases which might be linked to content material. The scientists investigated t...
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Are learning and unlearning bedfellows?

The researchers chose this kind of passive auditory stimulation -- particularly well suited for subjects who are asleep -- to explore the connection between learning and sleep. They exposed sleeping volunteers to noise that incorporated repeated sounds and then tracked their brain activity using electroencephalography. Since the brain reacts differently to new, unfamiliar sounds as opposed to learned sounds, electroencephalographic analysis can show researchers whether a sound heard has been memorized, even when the subject is not awake. Analysis of brain activity in subjects while asleep, and of their behavioral responses after waking, demonstrated they recognized the noises heard during both REM sleep and stage N2 sleep. These findings reveal that our brains are able to learn while in these two sleep phases. And indeed, during both phases -- even though they are very different in terms of brain activity -- it has been shown that the brain can process complex information, whether ...
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