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256 pages, Hardcover
First published March 23, 2021
…your memories for what happened…are wrongI will start off with what this book is not.
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Your memory isn’t a video camera, recording a constant stream of every sight and sound you’re exposed to. You can only capture and retain what you pay attention to.
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Just because memory sometimes fails doesn’t mean it’s in any way broken. While admittedly frustrating, forgetting is a normal part of being human.
Unlike perception and movement, which reside in specific addresses in our brains, we don’t have specialized memory-storage neurons or a memory cortex. Vision, hearing, smell, touch, and movement can all be mapped to discrete geographic regions in the brain…When we remember something, we’re not withdrawing from a “memory bank.� There is no memory bank. Long-term memories don’t reside in one particular neighborhood in your brain.And in so-doing, there is, almost inevitably, alteration.
�.every time we retrieve a stored memory for what happened, it’s highly likely that we change the memory…Memory isn’t a courtroom stenographer, reading back exactly what was said. When we recall what happened, we typically fetch only some of the details we stored. We omit some bits, reinterpret parts, and distort others in light of new information, context, and perspective that are available now but weren’t back then. We frequently invent new information, often inaccurate, to fill in the gaps in our memories so that the narrative feels more complete or pleasing. What we remember about the past is often influenced by how we feel in the present. Our opinions and emotional state now color what we remember from what happened last year. And so, in revisiting episodic memories, we often reshape them.She goes over different kinds of memory, the steps involved in storing (or not) each. She looks at the impact of writing down your take on something that just happened. There is a surprise there. Sleep comes in for a look. It plays a significant role in how memories are retained. Stress can also have a major impact on memory, both in the moment of our fight-flight-freeze experience, and in the aftermath of it. Strong emotion of a more usual sort also has an impact on memory retention.
It is through the erosion of memory that time heals all wounds.