The new work on semantics was completely independent of the work on memory - the two unfolding at around the same time but on opposite sides of the United States.
That insight might help to explain why memory is so often such an imperfect record of the past - and could provide a better understanding of what it really means to remember something. Instead, it is more like a reconstruction of the original experience, based on its semantic content. The finding, published last October in Nature Neuroscience, suggests that in many cases, a memory isn’t a facsimile of past perceptions that gets replayed. When they compared that map to one they made showing where the brain represents categories of visual information, they observed meaningful differences between the patterns.Īnd those differences looked exactly like the ones reported in the studies on vision and memory. A team of neuroscientists created a semantic map of the brain that showed in remarkable detail which areas of the cortex respond to linguistic information about a wide range of concepts, from faces and places to social relationships and weather phenomena.
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