This might be useful for some, especially at the SL. Many links too!

http://misskanaley.edublogs.org/class-materials/unit-2-research-methods-materials/

This Wiki page is dedicated entirely to student work around the psychology area. Students can sign up and participate in this space. Some of my students use this and find it helpful to contribute and connect with others.

http://psychospaces.wikispaces.com/Explain+one+study+related+to+localisation+of+function+in+the+brain.

Students have used this video in both Psychology and TOK classes.
(I did not teach the TOK component)

It's interesting in a sense that it's about how we remember things that may or may not have happened in recall.

http://www.youtube.com/watch?v=PB2OegI6wvI

Michael Westfall has a collaboration of short videos to demonstrate:
Schema Theory, Multi Store Model of Memory, The Serial Position Effect and Emotions and the Brain etc.

Link:
http://www.youtube.com/playlist?list=PLtYHAISEftvzgE82kZXllK7-dwonuA7Wv

The students really enjoy seeing an interactive demonstration of the theory to help consolidate their learning.