An international team of psychologists put a group of people aged 19 through 31 and a group aged 61 through 80 into a functional MRI and showed participants positive, neutral and negative photographs. It turned out that the brains of younger and older people responded similarly when they saw gunshot wounds, but for the older people, their ventromedial prefrontal cortex and amygdala, which are involved in emotion, and the hippocampus, which governs memory, all responded when they saw positive images like kittens, indicating the formation of a stronger memory.
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