Field Work in Ecuador (IMAGE) Boston University Caption A subject reviews the stages of conception and reflects on the child's abilities, thoughts and emotions during each period. Credit Natalie Emmons Usage Restrictions Image may only be used with appropriate credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.