Neuroscientists pinpoint location of fear memory in amygdala A rustle of undergrowth in the outback: it’s a sound that might make an animal or person stop sharply and be still, in the anticipation of a predator. That “freezing” is part of the fear response, a reaction to a stimulus in the environment and part of the brain’s determination of whether to be afraid of it. A neuroscience group at Cold Spring Harbor Laboratory (CSHL) led by Assistant Professor Bo Li Ph.D., together with collaborator Professor Z. Memory Palaces – How To Pass Those Heavy Tests « New College – University of Toronto It’s already November. I can’t believe it… time has gone by so quickly. Since many of us have upcoming exams or just want to do some extra study prep, here’s one of my favourite and most useful memory techniques, called memory palaces.
Online papers on consciousness Search tips There are three kinds of search you can perform: All fields This mode searches for entries containing all the entered words in their title, author, date, comment field, or in any of many other fields showing on OPC pages. Cranial Nerves Can't remember the names of the cranial nerves? Here is a handy-dandy mnemonic for you: On Old Olympus Towering Top AFamous Vocal German Viewed Some Hops. The bold letters stand for: olfactory, optic, oculomotor, trochlear, trigeminal, abducens, facial, vestibulocochlear, glossopharyngeal, vagus, spinal accessory, hypoglossal. Still can't remember the cranial nerves?
Automotive Exhaust Chemicals: disease causing effects A short list of the likely pathogens in car exhaust: Carbon Monoxide Nitrogen dioxide Sulphur dioxide Suspended particles, PM-10 particles less than 10 microns in size. Benzene Formaldehyde Polycyclic hydrocarbons Background Information - Adverse Health Effects of Chronic Exposure to Petroleum Combustion Products. On November 18, 1994, the first-ever conference on "Air Pollution: Impacts on Body Organs and Systems" was held in Washington, D.C. by the National Association of Physicians for the Environment. An abridged version follows.
Neuroscientists plant false memories in the brain The phenomenon of false memory has been well-documented: In many court cases, defendants have been found guilty based on testimony from witnesses and victims who were sure of their recollections, but DNA evidence later overturned the conviction. In a step toward understanding how these faulty memories arise, MIT neuroscientists have shown that they can plant false memories in the brains of mice. They also found that many of the neurological traces of these memories are identical in nature to those of authentic memories. “Whether it’s a false or genuine memory, the brain’s neural mechanism underlying the recall of the memory is the same,” says Susumu Tonegawa, the Picower Professor of Biology and Neuroscience and senior author of a paper describing the findings in the July 25 edition of Science.
The Brain: How The Brain Rewires Itself It was a fairly modest experiment, as these things go, with volunteers trooping into the lab at Harvard Medical School to learn and practice a little five-finger piano exercise. Neuroscientist Alvaro Pascual-Leone instructed the members of one group to play as fluidly as they could, trying to keep to the metronome's 60 beats per minute. Every day for five days, the volunteers practiced for two hours. Then they took a test. At the end of each day's practice session, they sat beneath a coil of wire that sent a brief magnetic pulse into the motor cortex of their brain, located in a strip running from the crown of the head toward each ear. The so-called transcranial-magnetic-stimulation (TMS) test allows scientists to infer the function of neurons just beneath the coil.
Buddhism and the Brain Credit: Flickr user eschipul Over the last few decades many Buddhists and quite a few neuroscientists have examined Buddhism and neuroscience, with both groups reporting overlap. I’m sorry to say I have been privately dismissive. Mind Uploading: Brain Facts What's the scale of things here? The following lengths (from Posner p. 305) give approximate sizes for structures in the nervous system: 0.001 mm: synapses (tip of a connection between neurons) 0.1 mm: neurons (brain cell) 1 mm: local circuits (small networks of cells) 10 mm: maps (spatially organized topographic maps) 100 mm: systems (e.g., the visual system) 1000 mm: the central nervous system (including spinal cord) How many things are we talking about? Short answer: a LOT. Long answer: Per cubic millimeter (mm^3), there are about 10^5 neurons and 10^9 synapses.
Thinking with your Fingers Monday, October 17, 2011 This is a bit of a pet topic of mine, so I was surprised to find that I'd only written about it once before. Here I wrote on the idea that washing one's hands influences the manner in which we make moral decisions. At other times we've spoken of this topic on the podcast. Here, now, I'm going to give it a much better airing. I'm talking about Embodied Cognition.