What Memories Are Made Of

HSAM

Individuals with Highly Superior Autobiographical Memory (HSAM) can recall nearly every detail of their lives. Sanjay Gupta introduces Marky Pasternak, one of only about 60 people in the world with this ability, who describes her memories as vivid and detailed, like a colorful path 1. Michael Yassa explains that HSAM challenges the conventional understanding of memory, which is typically seen as reconstructive and adaptive 2.

   

HM Case

The case of Henry Molaison, known as HM, has been pivotal in neuroscience. After a surgery to alleviate epileptic seizures, he lost the ability to form new memories, revealing the crucial role of the hippocampus in memory formation 3. Michael Yassa highlights that HM's case taught scientists about different types of memory and the brain's multiple memory systems 4.