Human+Development

**Piaget- Youtube Videos**
Stage 1 - Sensorimotor, Object Permanence [] Stage 2- Preoperational, lacking conservation [] Stage 3- Concrete Operational, conservation [] Stage 4 - Formal Operational- Deductive Reasoning [] Egocentrism []

Harlow and attachment.
http://www.youtube.com/watch?v=hsA5Sec6dAI

http://www.youtube.com/watch?v=fLrBrk9DXVk

http://www.youtube.com/watch?v=fg9QCeA4FJs&feature=related