Research by Vanderbilt University's Stephen Camarata and Richard Woodcock found females have a significant advantage over males on timed tests and tasks, especially among pre-teens and teens. The study highlights the need for teachers to understand sex differences in processing speed and teaching strategies.
Astronomers have discovered an eclipsing pair of brown dwarfs in the Orion Nebula, providing the first direct measurement of their mass, size, and surface temperature. This discovery sheds light on the dynamic processes that produce stars and helps estimate the masses of faint objects.
A study provides empirical support for natural selection's role in species formation by analyzing the relationship between adaptation and reproductive isolation in hundreds of organisms. The researchers found a positive link between these two processes, suggesting that adaptation drives species diversification.
Astronomers have mapped the outflow from two regions of star formation in the Orion Nebula, providing new insights into the process of star creation. The study used Hubble Space Telescope data to track shock waves and determine the duration of stellar winds, shedding light on how these winds shape the surrounding clouds.
A new study found that buckyballs bind to the spirals in DNA molecules, causing deformation and potentially interfering with biological functions. The binding energy between DNA and buckyballs is comparable to the binding energies of a drug to receptors in cells.
A new guidance system automates electrode placement in DBS surgery, reducing operating times by up to 80% and improving patient outcomes. The system uses a 3D brain atlas to predict target locations, allowing neurosurgeons to hit the mark on their first try.
A recent study has discovered substantial room for increasing the efficiency of nanotubes, which are crucial for producing light with novel properties. The research found varying quantum efficiencies among individual nanotubes, with some being up to 1,000% more efficient than others.
New research by Vanderbilt University psychologist Jessica Giles finds that noun labels, such as 'murderer' or 'sex offender', can lead to negative and fixed views of people described with these terms. The study also suggests that the use of labels like this has a lasting impact on children's perceptions.
Researchers at Vanderbilt University have discovered a way to make quantum dots produce broad-spectrum white light, similar to sunlight. The discovery uses 'magic-sized' nanocrystals that emit light without chemical treatment, offering a potential sustainable alternative to traditional lighting.
A new study published in Schizophrenia Research found that individuals with schizotypal personalities are more creative than normal or fully schizophrenic people. They also use the right side of their brains more heavily to access creativity. This is supported by research showing a disproportionate number of schizotypes and schizophren...
Research by Vanderbilt University psychologist David Zald found that emotional images can lead to a phenomenon known as 'emotion-induced blindness,' where individuals fail to detect subsequent visual images. This effect is linked to personality traits, with those scoring high on harm avoidance being more affected.
Researchers at Vanderbilt University have created a new approach to tissue engineering that allows for the growth of predictable volumes of bone on demand. This method involves creating a 'bioreactor' space under the periosteum, a thin outer layer covering long bones, and filling it with a gel containing calcium to stimulate bone growth.
Researchers at Vanderbilt University aim to develop powerful chemical repellents and attractants to interfere with malaria mosquitoes' ability to find human targets. The project uses genetic engineering, molecular biology, and field-based studies to establish an effective strategy for reducing malaria spread.
A new method using quantum dots detects RSV in a matter of hours, reducing the need for lengthy tests. The system has potential benefits including increased proper use of antiviral medicines, reduced inappropriate antibiotic prescriptions, and improved patient separation.
The study reveals that both nature and nurture are essential for developing flexible self-control. The computer model demonstrates how the prefrontal cortex learns from life experiences to apply rules and strategies in new situations.
Researchers at Vanderbilt University developed an ultra-fast optical shutter with a record-breaking speed of 40 picoseconds, enabling high-speed imaging applications. The new technology uses femtosecond laser pulses to freeze light at the molecular level, opening doors for breakthroughs in fields like biology and materials science.
Researchers found that stimulation of the posterior parietal cortex elicits complex, innate behaviors such as aggressive facial patterns and hand-to-mouth movements in primates. This discovery suggests that these behaviors are built-in to primate brains, including humans.
A deeper understanding of behavioral biology is necessary to improve laws, according to Vanderbilt law professor Owen Jones. By integrating life science and social science perspectives on behavior, laws can be more effective in pursuing their goals.
The star-nosed mole's exceptional foraging ability is attributed to its star-shaped appendages that ring its nose, allowing it to detect small prey quickly. By minimizing handling time, the mole achieves a net energy 'profit' with a diet of insect larvae and other small food sources.
Researchers at Vanderbilt University and Pria Diagnostics LLC collaborate to develop a portable device that can quickly detect infectious diseases and biological agents. The device, which aims to produce its first portable HIV monitor within two years, utilizes microfluidic devices and micro-optical fluorescence spectroscopy.
Astronomers have discovered a quadra-polar nebula with two disks formed at different times, challenging the companion-star-only model. The study, led by C. Robert O'Dell, used sharp new images from the Hubble Space Telescope to reconstruct the 3D structure of the Helix Nebula.
A wireless distributed sensor network simulates synchronized calling behavior of frogs and cicadas. The system exhibits complex group behaviors, including the emergence of new calling cycles and the recruitment of nodes to these cycles.
Scientists at Vanderbilt University have discovered that low-intensity infrared laser light can spark specific nerves to life, exciting a leg or even individual toes without touching the nerve cells. The technique offers greater precision and accuracy than conventional electrical stimulation.
Researchers developed a new trust model to interpret subjects' performance in a simple task. The model factors in doubt and found that many students expressed doubt despite being told it was unlikely. This challenges the assumption that humans are irrational when doubting instructions.
A study by Vanderbilt University researchers reveals that biological clocks enhance the fitness of organisms by adapting to daily environmental changes. However, when illuminated constantly, these internal pacemakers become obsolete and can even hinder growth, according to the research.
Astronomers have discovered a new FU-Orionis-type star, which is an extremely young star about the same mass as the sun. The discovery provides insights into the formation of our solar system and allows for the study of X-ray emissions in these stars.
Researchers found that infants as young as five months detect subtle differences in object fit and space description between Korean and English languages. This suggests that humans have pre-existing concepts before acquiring language, which may influence the way we categorize objects and events.
Researchers developed a genetic model for familial spastic paraparesis, identifying the role of spastin in nerve communication. The study found that pharmacological treatments can restore normal nerve function by stabilizing microtubule activity.
Using fruit flies, scientists confirm bursicon's role in hardening exoskeletons after molting and enabling wing development. The discovery could lead to precise timing of pest control measures for migratory locust outbreaks.
Theoretical physicist Robert J. Scherrer proposes a model that explains dark matter and dark energy as two sides of the same coin, using an exotic form of energy called scalar fields. This unifying idea avoids previous problems and could potentially explain the mysterious phenomena.
The Advanced Carbon Nanotechnology Research Program aims to explore carbon nanostructures for biological and chemical sensors, energy-conversion devices, and electron emission devices. The research will train graduate students and establish interactions with industry and government laboratories.
Researchers found that despite conflicting visual and tactile inputs, the brain keeps them separate, leading to 'cognitive dissonance.' The study used a visual illusion to trick subjects into perceiving motion in one direction or another. Brain activity scans revealed the middle temporal visual center responding to both visual and tact...
Research at Vanderbilt University found that dopamine transmission increases in response to uncertain reward scenarios, such as gambling. The study used PET scanners to measure brain activity in nine human subjects and discovered localized regions showing increased or decreased dopamine release.
Researchers at Vanderbilt University have discovered that groups of brain cells synchronize their electrical activity to enhance orientation discrimination. By studying the firing rates of dozens of neurons, scientists found that synchronization among six neurons can discriminate variations in orientation as small as two degrees. This ...
A new study provides support for the ancient origin of the MT visual center in primates, suggesting it evolved early in primate evolution. The researchers used optical imaging to analyze the brain structure of a small nocturnal primate called the galago and found similarities with monkey brains.
Researchers René Marois and J. Jay Todd found that the human brain's visual short-term memory has a limited storage capacity of about four objects. This is attributed to the posterior parietal cortex, which plays a key role in holding information from visual scenes.
An anthropologist suggests a connection between decreasing energy use and declining fertility rates. The availability of energy affects economic activity, leading to a depressed economy which in turn causes a decline in fertility rate. This prediction is based on the link between petroleum consumption and economic conditions.
Researchers at Vanderbilt University have discovered new antioxidants that are 100 times more effective than vitamin E, with potential applications in dietary supplements and medical treatments. The newly developed compounds have also shown promise in protecting against lipid oxidation, a key factor in coronary artery disease.
Scientists at Vanderbilt University have verified that female Anopheles mosquitoes contain receptors responding to one of the chemical compounds found in human sweat. This discovery may lead to better ways to repel deadly insects and uncover additional chemicals that either attract or repel them.
Researchers at Vanderbilt University have developed a four-channel microphysiometer to monitor cell metabolism in near real time. The device can chart variations in oxygen, glucose, and lactic acid levels, providing crucial clues about the impact of unknown biological agents on cells.
Two Vanderbilt researchers have received NAAR fellowships to develop new tools for identifying and understanding the genetic causes of autism. Lynnette Henderson is working on extending Stone's Screening Tool for Autism in Two-year-olds, while Jacob McCauley will conduct a genetic analysis of serotonergic and GABA-ergic genes.
The project aims to design exercises that help students develop mathematical descriptions of the natural world, applying statistical concepts to understand variation in plant growth. Researchers will also study statistical consultants in practice and develop technologies to support learning.
Vanderbilt University researchers find that damped propagating waves, not fully extinguished by low voltage defibrillation shocks, could lead to cardiac arrhythmia. These waves, difficult to detect and study, may be a cause of defibrillation failure.
A magnificent Maya altar stone carved in 796 AD has been recovered from a looters' hideout, providing crucial clues about the wealthiest Maya kingdoms. The altar's recovery illustrates the importance of working with indigenous peoples to restore ancient ruins.
Researchers at Vanderbilt University discovered that the brain's cortical map processes touch sensations based on perceived locations, not actual physical positions. This finding challenges long-held theories about the nature of the 'map' in the brain and sheds light on how the brain processes sensory information.
The grant will fund a five-year program creating nanoscale materials for basic science and various applications, including medicine and microelectronics. The Vanderbilt-Fisk Interdisciplinary Program aims to enhance graduate education and research collaborations between the two schools.
Researchers found neurons in the anterior cingulate cortex (ACC) respond to discrepancies between intentions and actual events, indicating that the brain monitors the consequences of actions. The study used detailed studies measuring neural activity in macaque monkeys performing tasks requiring self-control.
A new study analyzing Type 1A supernovae measured with the Hubble Space Telescope sheds light on the nature of dark energy. The results confirm that the universe is expanding at an increasing rate, reinforcing initial discoveries made five years ago.
A Vanderbilt University researcher suggests that ignoring racism in mental health diagnosis can mask severe psychological problems. Brown proposes five mental health issues linked to racism that are prevalent among blacks, including nihilistic tendencies and suppressed anger expression.
A study by Vanderbilt University researchers found that tracking the motion of larger objects is more difficult than smaller ones. The center-surround receptive field organization in the brain's visual area helps filter out spurious signals, making it harder to distinguish moving objects from their background.