Something very complex and at the same time very common happened to all the authors of the chapters in this book. All of them managed to arrive at the Talland memorial conference. A number of things could have stood in the way of that arrival, and if they had, the participants would never have convened to produce these chapters. One of those things is a sort of memory. To get the flavor of this sort of memory, imagine that you are going on a trip. Think for a moment about some of the many memory-related things you need to do to accomplish that. You need to remember to plan your trip, or to get someone to do that. You need to prepare your house and spouse and children and cats and office for your departure. You need to remember to wash your socks and to bring those clean socks in a wellpacked suitcase. And you need to remember when and how to return home again.

As you scan, for a moment, what you would need to remember, you may notice that much of it falls into two categories: things you remember to do (“memory for planned action”), and things you remember because you need them in order to do the things you plan to do. An example of the former is “get on the plane”; an example of the latter is “remember the way to the airport.”