What neurochemical has been linked to trust, attachment and generosity?

A sleep disorder characterized by sudden nodding off during the day and loss of muscle tone following moments of emotional excitement is ______

a. apnea c. cataplexy b. narcolepsy d. insomnia

Emily is studying hyperactive children. Her observations have led her to predict that if

she runs an experiment in which some hyperactive children are given a sugar-sweetened drink while others are given a drink sweetened with a sugar substitute, those receiving the sugar-sweetened drink will exhibit greater disruptions in their behavior. Her prediction is an example of a _______. a. theory c. response set b. hypothesis d. scientifically based conjecture