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Short-term memory is affected by EM exposure - this has been known since the 1960s with research on radar and electrical workers. Many people report 'brain fog' or short-term memory loss or confusion if they are sensitive to EM radiation and exposed to it, and leading researchers now think this symptom is a precursor the the development of dementia and ...


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I think this website provides a pretty surprisingly thorough breakdown of avian brain anatomy, including historical contexts and debate around what exactly is homologous and what is not, and whether 'homologous' is a useful bit of information. In short: It was thought until recently that the bird brain was just the core of the mammal brain with some layers ...


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Reverse signals (dendrite -> axon) do occur in neurons, and are called back propagating action potentials (bAPs). However, whatever role bAPs play in the nervous system at large is subtle/small enough that we don't really understand them at all. In any case, as @luigi points out, pinched nerves don't have anything to do with bAPs. The reason why a pinch in ...


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This isn't a ridiculous idea; Transcranial Magnetic Stimulation is used in research and even has some use as treatment for depression (http://www.mayoclinic.org/tests-procedures/transcranial-magnetic-stimulation/basics/definition/prc-20020555) In TMS a strong, localized magnetic field can disrupt normal functioning of regions of the brain. For instance it ...


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We already remove old memories (well, more properly unimportant ones) partially in order to make room for new ones There are 3 different levels of storage, but none of them involve an increase of mass. (Distribution of mass, in one sense, but not amount thereof.) I'm not a neuroscientist, but there are one or two lurking around here who can correct anything ...


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No, it can't be done for a lot of reasons. Here are just a few. 1) Memories are stored in electrical pathways, not the the cells themselves. You don't have 1000 memories in a chunk of brain that contains 1000 neurons. If you don't get the entire pathway, you won't get the memory. 2) Once a nerve is cut, it won't fuse with another cut nerve. All you'll have ...


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The answer to this question is complicated, but assume it's not for the moment. The easy answer is that our eyes can detect patterns we're familiar with and "produce" an answer in the form of a number. Unfamiliar patterns do not produce this 'number'. Take a die. We are immediately aware of the number of dots in the typical arrangement of one to six. We ...


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Adaptation occurs in every sensory system. For example in vision there is the motion after effect that occurs through adaptation of visual neurons in the cortex. Also, the visual system strongly adapts to low and high lighting conditions through light and dark adaptation. The tactile system also shows substantial adaptation, as touch receptors in the skin ...



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