An illuminating look at one scientist's decades-long quest to find the actual physical indication of memory in the brain. It's written relatively clearly, but you have to sit down with it for extended periods of time if you want to engage the theta rhythm and activate long-term potentiation (LTP), both of which are discussed in this book, thereby retaining what you learn from its pages.
The titular neuroscientist, Gary Lynch, is a colourful character. He came to neuroscience from a completely different academic background and essentially taught himself biology. His lab is filled with a multidisciplinary team that I think really brings home the benefits of having a wide-ranging education. For example, one of the lab members was a computer programmer before turning to neuroscience. Later on, the team needed a computer program to sort through mounds and mounds of data on rat hippocampi, and commercially available software wasn't cutting it, so this guy wrote his own program to do the job. Very impressive, not to mention handy.
The team's successes and failures are interesting to read about, and you really appreciate just how much work goes into all of those experiments, and how gratifying it is to see one's experiments turn out successfully. Even so, the scientists of Lynch Lab are very pragmatic, usually refusing to believe what they see until they've repeated the experiment umpteen times. Because their goal is to be able to point at a spot in the brain and say, "There. That's memory," they don't want to get carried away with themselves and pin too much false hope on a result.
One of the most fascinating things I learned from this book was that the brain has a built-in forgetting process that erases most of what you experience. Makes sense, because you don't want to remember literally every single detail of every single day. If you did, and the Lynch team were able to make all of those memories physically visible in your cerebral cortex, it would look like the synapse version of the show "Hoarders". So essentially what the researchers have discovered is that aging and the memory decline associated therewith is basically the forgetting process being stronger than LTP, so they just need to find a way to block the forgetting process and/or boost the remembering process, and they'll have made great strides in the fight against Alzheimer's, Parkinson's, Huntington's, and other cognitive decline diseases. There are even diseases that don't necessarily have a cognitive component but exhibit the same problems with LTP.
I've also learned that memory research is a cruel mistress, especially for the poor rats sacrificed to the cause... the image of a headless rat twitching in a garbage can is rather horrifying. So if you're an animal lover, be warned. The description doesn't really go beyond that; it's just more thinking about the sheer number of rats that have been killed over the years for these studies.
As I stated earlier, this book is fairly accessible, and the author draws some very clever comparisons (e.g. that humans are PCs... see Chapter 13) and uses other common subjects such as baseball to illustrate the memory concepts at work. The book also includes a glossary of terms and a selected bibliography of the actual papers if you're interested. I would recommend this book to well-informed laymen and those with a specialized interest in this kind of field.