Word: emotionalizing
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Dates: during 2000-2009
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Monkeys experience binocular rivalry. They can learn to press a button every time their perception flips, while their brains are impaled with electrodes that record any change in activity. Neuroscientist Nikos Logothetis found that the earliest way stations for visual input in the back of the brain barely budged as...
The second fact: memory and emotion are intimately linked biochemically, with hormones like adrenaline actively involved in forming the neurological patterns we call memories. "Any kind of emotional experience will create a stronger memory than otherwise would be created," says James McGaugh, a neurobiologist at the University of California at...
On the face of it, that doesn't seem especially surprising: we feel strong emotion at important events, which are obviously more memorable than ordinary moments. But the connection is much deeper than that and dates back to our deepest evolutionary past. "The major purpose of memory," observes McGaugh, "is...
What happens biochemically, says McGaugh, is that when faced with an emotion-charged situation, such as a threat, our bodies release the stress hormones adrenaline and cortisol. Among other things, these signal the amygdala, a tiny, neuron-rich structure nestled inside the brain's medial temporal lobes, which responds by...
But aside from such odd cases, virtually no expert doubts the connection between the hormones of emotion and memory--and nobody doubts that memory can be enhanced artificially. It's not necessarily a good idea, though. Give someone a shot of adrenaline, and memory temporarily improves. But it also drives...