Brain Size Current Events | Brain Size News | 2
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Introduced marine species get larger in the invaded region
The transport of species outside their native region through human activities has often had a dramatic impact on the ecosystems into which these species are introduced and on the surrounding economies. The consequences of introduction for the introduced species itself, including changes in body size and shape, are less recognized. Prior studies of... view more... (2003-08-13)
Undergrad academic performance linked to neural signals
Students will have to use their brains to get good grades at school this year, according to new University of Toronto research that relates brain activity to undergraduate academic performance. view more (2009-09-09)
Bigger babies at greater risk of pre-menopausal breast cancer
Women who had a greater birth size have a significantly higher risk than others of developing pre-menopausal breast cancer, according to a study carried out by the London School of Hygiene & Tropical Medicine. The study, reported in the British Medical Journal today, looked at 5,000 women born in Sweden during 1915-29, of which 63 had... view more... (2003-01-29)
Gene linked with mental illness shapes brain region, researchers find
A gene variant associated with mental illness goes hand-in-hand with enlargement of a brain region that handles negative emotions, researchers at UT Southwestern Medical Center and the Central Texas Veterans Health Care System have found. view more (2006-11-08)
More PhDs stay at home as brain drain slows
The brain drain is slowing, according to the latest survey of graduates by the Biochemical Society. view more (2005-02-22)
What determines body size?
How does a growing organism determine what its final body size will be? In the moth Manduca sexta, also known as the tobacco hornworm and recognisable by its distinctive blue-green caterpillar, adult body size is largely determined at the end of larval life, when the caterpillar has reached it final weight and is about to metamorphose into a moth. view more (2006-08-02)
Size at birth linked with risk of breast cancer in women under 50
A study in the BMJ this week finds an association between size at birth and risk of pre-menopausal breast cancer. view more (2003-01-29)
Blood thinning drug linked to increased bleeding in brain
A new study shows that people who take the commonly used blood thinning drug warfarin may have larger amounts of bleeding in the brain and increased risk of death if they suffer a hemorrhagic stroke. view more (2008-09-30)
Mean Population Size Increases with Diversity
A long-standing debate in ecology has been the effect of diversity on the temporal stability of biological systems. Ecological theory predicts that the stability of populations should decline as community diversity increases, in part, because population size is assumed to decline with community richness. In the February issue of Ecology Letters,... view more... (2003-01-28)
U of MN researchers identify new cord blood stem cell
Researchers at the University of Minnesota Medical School have discovered a new population of cells in human umbilical cord blood that have properties of primitive stem cells. view more (2006-02-14)
Hard-wiring the fruit fly's visual system
Both vertebrate and fruit fly have so-called visual maps in the brain that represent the world they see. view more (2006-09-21)
Human brains pay a price for being big
Metabolic changes responsible for the evolution of our unique cognitive abilities indicate that the brain may have been pushed to the limit of its capabilities. Research published today in BioMed Central's open access journal Genome Biology adds weight to the theory that schizophrenia is a costly by-product of human brain evolution. view more (2008-08-05)
Children and their Body Image
The development of a Children's Body Image Scale (CBIS) may help in the early identification of dissatisfaction with body size in pre-pubescent children. These research findings are published today, 21st June 2002, in the British Journal of Clinical Psychology by Dr Helen Truby, School of Biomedical and Life Sciences, University of Surrey and Dr... view more... (2002-06-10)
Epilepsy and brain pathology linked together by the protein ADK
The brain of individuals who suffer from epilepsy is characterized by astrogliosis, a brain pathology evidenced by a complex series of changes in the morphology and function of brain cells known as astrocytes. view more (2008-01-03)
Yerkes researchers identify language feature unique to human brain
Researchers at the Yerkes National Primate Research Center, Emory University, have identified a language feature unique to the human brain that is shedding light on how human language evolved. The study marks the first use of diffusion tensor imaging (DTI), a non-invasive imaging technique, to compare human brain structures to those of... view more... (2008-03-24)
Naturally occurring enzyme can break down key part of Alzheimer's plaques
Scientists have identified a naturally occurring enzyme that can break down a key component of the brain plaques characteristic of Alzheimer's disease. view more (2006-10-25)
Scripps Research, UCSD, and University of Oslo team ties genetic variations to brain size
Using advanced brain imaging and genomics technologies, an international team of researchers co-led by Scripps Research Institute scientists has shown for the first time that natural variations in a specific gene influence brain structure. view more (2009-08-19)
Proteins in urine predict brain damage in laboratory animals
The study dealt with the development and prevention of strokes in particular rats which had spontaneously developed extremely high blood pressure. Such a high blood pressure level leads within a few weeks to damage to the kidneys, heart and brain such that the rats die. The researchers found that brain damage in these rats is always preceded by... view more... (1999-06-21)
Newborn brains grow vision and movement regions first
The regions of the brain that control vision and other sensory information grow dramatically in the first few months following birth, while the area that controls abstract thought experiences very little growth during the same period, University of North Carolina at Chapel Hill researchers have found. view more (2007-02-09)
3-D ultrasound scanner provides in-depth view of the brain
Biomedical engineers at Duke's Pratt School of Engineering have adapted a three-dimensional ultrasound scanner that might guide minimally invasive brain surgeries and provide better detection of a brain tumor's location. view more (2007-06-21)
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