An open forum for BIO365R
Posted in Perception, Somatosensory, Techniques, Uncategorized on Nov 3rd, 2009
Carbonation is an important quality of favorite drinks like beer and soda. In addition to the feel of bubbles bursting on the tongue, the flavor of CO2 adds to the fizz experience. Researchers have just identified the taste cells and a membrane-bound receptor responsible for tasting CO2. Using genetically-engineered mice that lack one [...]
Posted in Techniques, Vision on Oct 14th, 2009
(submitted by AJ) Colour blindness can cause mild perturbation in a person’s daily life, but there are cases where it has led to fatal mistakes. However, there are degrees to colour blindness, and many are unaware that they are failing to see certain hues at all. Mark Twain and Bill Clinton [...]
Posted in Cortex, Pain, Perception, Techniques on Apr 24th, 2008
A recent article in Scientific American describes one of the treatments for patients experiencing phantom limb pain. One solution mentioned was to thrust a screw driver into the apparent trouble spot. The amputee would place his prosthetic leg where his own leg used to be, and stab at it with his screwdriver. [...]
Posted in Behaviour, Brain, Motor Control, Techniques on Jan 15th, 2008
Years ago, scientists were able to link a monkey sitting in North Carolina with a robotic arm situated at MIT’s Touch Lab. This doesn’t seem all that remarkable until you notice that the control is entirely by thought. The monkey is manipulating the arm using a brain wave-machine interface that could be used [...]
Posted in Brain, Imaging, Techniques on Nov 22nd, 2007
Neuroimaging is a rapidly growing aspect of neuroscience with lots of new toys to view the active structures of the brain during as a result of different stimuli. But this new technique takes it to a new level. There are great pictures of hippocampal neurons from the “brainbow” mouse.
Stanford’s online-medical ezine has a [...]
Posted in Questions on Jul 17th, 2007
In the 7/17 lecture, you mentioned the reversal potential and how for single ions, this potential is the equilibrium potential. This means that at this potential, the polarity of the membrane flips. I do not understand what happens when the membrane potential flips. I wrote down that this is where Na and K are crossing [...]
Posted in Channels, Course material, Drugs, Questions on Jul 14th, 2007
“In the lecture material given on 7/13 about drugs binding to the Cl channels. I am mostly confused about what the drugs do. I have written down that Benzodiazepine depolarizes the membrane to the voltage of equilibrium for Cl (according to the Nernst Equation). I also have written down that certain drugs inhibit the neuron [...]
Posted in Information on Jul 14th, 2007
Hi folks. Welcome to the BIO365R blog. This is intended to be a place to find, post, and discuss neurobiology-related stories from the real world. Quite often, ideas and questions arise in study groups that go beyond the scope of the course, but are nonetheless fascinating. These articles, RSS feeds, TV shows, [...]
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Channel N – brain science videocasts Mind Hacks