How has early memory research concerning the growth of cognitive perspectives in psychology changed over the course of the 20th century? What are the reasons for this change?

Answer 1

Do you mean "early" in terms of the research done for memory or in terms of the lifespan of individuals?

Since this historical aspect is not my area of expertise, I searched Google under the key words "cognitive psychology memory research history" to get this:

http://www.google.com/search?client=safari&rls=en&q=cognitive+psychology+memory+research+history&ie=UTF-8&oe=UTF-8

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.