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Does the Brain Produce the Mind – and Ethics?

Two contrasting views on the mind/body problem appeared in science journals recently.  In Nature this week,1 Paul Bloom (Yale) reviewed The Ethical Brain (Dana Press, 2005) by Michael S. Gazzaniga, a member of the President’s Council on Bioethics.  Bloom felt the need to clarify the difference between theological and evolutionary views on the source of […]

Nose Knows More than Math Pros Suppose

The aroma of coffee, of a steak, of cherries – these smells are all composed of dozens if not hundreds of separate molecules, yet our brains immediately recognize them each as a coherent whole.  How does the nose and the brain process all this information?  This is the subject of an article in the Caltech […]

Supermen Living in Nepal

There is a race of people at the base of Mt. Everest capable of feats that defy scientific explanation: the Sherpas.  They can carry up to twice their body weight under three hostile conditions that would wear out most of us in a minute: (1) high altitude, (2) long distance, and (3) steep inclines.  Somehow, […]

Design Language Gushes Out of Article Describing Cell Quality Control

Here are the design words found in a press release from Michigan State describing the editing mechanisms of the cell DNA-to-RNA transcription process: high fidelity, quality control, inner workings, genetic coding, exquisite nanotechnology in living systems, genetic control, blueprint for life, industrial assembly line, conveyor belt, preloading, criteria, backs up to correct the error, sensed […]

Your Eyes Do Layered Image Processing

Computer users familiar with Photoshop and other image processing programs know that an image can be divided into “layers” for making color corrections, evening out contrast and enhancing details.  Your eyes do that, too, says Alan Gilchrist in Current Biology.1  He shows a stunning optical illusion to make the point: transparent chess pieces against differing […]

Do Neurologists Understand Brain Evolution?

Jane Bradbury wrote a feature piece for PLOS Biology recently,1 entitled, “Molecular Insights into Human Brain Evolution.”  Help us find the insights.  First, she marvels on how “humans sit on top of the pile when it comes to relative brain size.”  Then she marvels at how quickly the human brain apparently evolved compared to apes.  […]

If I Only Had a Brain…

The scarecrow didn’t know what he was asking for.  Look what Steven E. Hyman of Harvard says about the human brain and nervous system in the 8 March 2005 issue of Current Biology:1 The nervous system processes sensory information and controls behavior by performing an enormous number of computations.  These computations occur both within cells […]

Are Humans Still Evolving?

Science Now asks the question, “are humans still evolving?”  Comparisons of genes and chromosomes between different people groups from Asia, Europe and Africa are challenging the view that there is one human genome.  Some long stretches of DNA are inverted in some groups, and women so affected seem to have more children on average, even […]

Robots Don’t See as Well as You Do

Robot designers are still working on ways to emulate the human eye.  Just when you thought digital cameras were all the rage, we learn from EurekAlert they are miserable substitutes when put into the eye sockets of robots.  Robot-vision export Vladimir Brajovic explains: Often, when we take a picture with a digital or film camera, […]

Why You Breathe Deep to Sniff a Flower

It may sound like a 747 when your uncle blows his nose, but scientists at Imperial College found nose airflow to be more complicated than the aerodynamics of a jumbo jet’s wing, according to a press release by the reporting the Biotechnology and Biological Sciences Research Council .  They made a 3D model of the […]

Monkeys Have No Ear for Music

Consonance and dissonance have no meaning to monkeys, studies have shown.  Nature Science Update reported on experiments on cotton-top tamarins showing that, unlike humans, they do not find consonant tones more pleasing than dissonant ones. “If you want to look at the evolution of music it’s important to do these types of studies,” says Laurel […]

Haeckel Vindicated?  Parathyroid Glands from Gills?

“Human gland evolved from gills” trumpeted a BBC News science article without apology.*  It gives uncontested press to a team from King’s College that is claiming the human parathyroid glands evolved from gills.  This is claimed on the basis that they have similar functions (calcium regulation) and are located in the neck region.  Fish have […]

Did Language Evolve by Natural Selection?

In the Oct 14 issue of Nature,1 Gary Marcus (Dept. of Psychology, New York University) appears conflicted about how human language arose.  He wants to attribute it to a Darwinian process: If, as François Jacob famously argued, evolution is like a tinkerer who builds something new by using whatever is close at hand, then from […]

Disembodied Brain Flies Jet Aircraft

Researchers at University of Florida claim to have connected rat brains neurons in a dish to electrodes, which learned to run an F22 flight simulator. We can’t speak to the validity of this claim or its interpretation, but what stands out in the article is the awe over the computational abilities of the human brain: […]

Your Brain Hums While Idling

Your brain is 100% occupied when watching and concentrating on things, and still processing at 80% in the dark when idle, say researchers at University of Rochester.  Opening your eyes only adds 20% more brain activity to the 80% while in neutral.  The amount of neural processing going on in idle mode surprised the researchers.  […]
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