By Ashok Jansari in The Conversation.
Short-term memory, long-term memory, amnesia, dementia, Alzheimer’s – people often use these terms incorrectly. The reason is partly because memory is one of the most complex mental abilities. It involves experiencing the current moment through the five senses, holding that experience for a fraction of a second, filtering just a proportion of this through to the next stage, consciously holding this information for perhaps 90 seconds, and then either losing the experience or somehow successfully making enough of an impression in the mind that it can be evoked at a later time.
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