Haystack Full of Needles: A memoir of research on mechanisms of memory in the decades that defined neuroscience - Paperbackby Louis Neal Irwin (Author) How do we store information in the brain? Is memory a thing in a place, like a specific molecule in a particular cell? Or does learning require a process in a population, like neurons firing in a specific pattern for each experience? This combination of memoir and history tells the story of how the mechanisms of memory were gradually revealed, through biographical vignettes of the scientists who set out to solve the riddle