Celine has been having difficulty sleeping, cannot seem to concentrate at work, is sad most of the time, and seems to have lost interest in things that she always used to enjoy. Which disorder is Celine most likely suffering from?

According to the activation-synthesis hypothesis, what do dreams reflect?

a. the brain's attempt to make sense of spontaneous neural activity b. unconscious motivations and emotions c. experiences that have been part of the species' evolutionary history d. an imbalance among hormone levels

Four-year-old Michelle talks to herself frequently. She does this especially when she is trying to solve a difficult problem. Lev Vygotsky would say that Michelle is

A. engaging in scaffolding. B. likely to be socially competent. C. functioning at the upper limit of her zone of proximal development (ZPD). D. engaging in egocentric and immature thinking.