Exploring the extraordinary ability of highly superior autobiographical memory (H-Sam) and the research being done to unravel its neural mechanisms. Remembering specific dates, including the day of the week for each date. Reflecting on Steve Irwin's tragic death and the emotional impact of memories. Living with highly superior autobiographical memory and the challenges it brings.
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Quick takeaways
Highly superior autobiographical memory (H-Sam) allows individuals to recall an exceptionally high number of personal experiences and dates from their lives.
Becky's memory abilities may have practical applications in the development of interventions for memory disorders like dementia.
Deep dives
Exceptional Memory Abilities
Becky Sherrick has highly superior autobiographical memory (H-Sam), a rare condition that allows her to accurately recall an exceptionally high number of personal experiences and dates from events throughout her life. H-Sam is a very selective and rare type of memory ability that is not common in individuals. It was first identified in 2006 and is still not fully understood in terms of its underlying neural basis. Becky's memory is not limited to events, but also includes vivid details like dates, conversations, and emotions associated with the memories.
Memory and Emotions
Becky's recall of events triggers associated emotions, which can be both positive and negative. Negative memories, especially those associated with bullying or depression, can be distressing to relive. Becky experiences an overwhelming amount of information and emotions, leading to frequent headaches and difficulties sleeping. Additionally, her synesthesia enables her to associate certain objects or colors with different sensory experiences, such as tasting chalk when thinking about the color yellow.
Possible Explanations and Research
Researchers are studying Becky to understand the underlying factors contributing to her exceptional memory. One theory suggests that her OCD tendencies, characterized by repetitive rumination, may strengthen her memory. The heightened emotional component associated with anxiety may also contribute to the vividness of her memories. Structural differences in brain areas related to autobiographical memory have been observed, although further research is needed. Becky's memory abilities may have practical applications in the development of interventions for memory disorders like dementia.
If you were given a date from the last five years could you say what day of the week it was? One young woman in Australia can remember every single day of her life since she was born. We hear about her life and the research she’s involved with—as a single participant.
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