Cognitive neuroscientists have shown that babies have an abstract numerical sense, as demonstrated by their ability to match the number of voices they hear to the number of faces they expect to see. This numerical perception across senses demonstrates that babies have a truly abstract sense of numerical concepts -- and not just one that is a function of a particular sense -- even before they learn to speak. Previous experiments on this topic have yielded conflicting and equivocal results, said the researchers.
The researchers, Kerry Jordan and Elizabeth Brannon of Duke University, published their findings the week of Feb. 13-17, 2006, in the Proceedings of the National Academy of Sciences. Jordan is a graduate student and Brannon is an assistant professor in Duke’s Center for Cognitive Neuroscience and Department of Psychological and Brain Sciences. The research was sponsored by The National Institute of Mental Health, The National Science Foundation and the John Merck Fund.
In their study, Jordan and Brannon used the same basic experimental design that they had previously used to demonstrate that monkeys show numerical perception across senses http://www.dukenews.duke.edu/2005/06/BrannonCurrBio.html. In those experiments, the researchers, collaborating with colleagues at the Max Planck Society, presented the monkeys with the sound of two or three animals making a natural "coo" sound. At the same time they gave the monkeys a choice to look at video images of either two or three monkeys cooing. The researchers found that the monkeys overwhelmingly chose to look at video images that matched the number of monkeys they were hearing.
Dennis Meredith | EurekAlert!
Do microplastics harbour additional risks by colonization with harmful bacteria?
05.04.2018 | Leibniz-Institut für Ostseeforschung Warnemünde
Rutgers-led innovation could spur faster, cheaper, nano-based manufacturing
14.02.2018 | Rutgers University
At the Hannover Messe 2018, the Bundesanstalt für Materialforschung und-prüfung (BAM) will show how, in the future, astronauts could produce their own tools or spare parts in zero gravity using 3D printing. This will reduce, weight and transport costs for space missions. Visitors can experience the innovative additive manufacturing process live at the fair.
Powder-based additive manufacturing in zero gravity is the name of the project in which a component is produced by applying metallic powder layers and then...
Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.
Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...
University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.
Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...
13.04.2018 | Event News
12.04.2018 | Event News
09.04.2018 | Event News
24.04.2018 | Life Sciences
24.04.2018 | Materials Sciences
24.04.2018 | Trade Fair News