Dihydroergotamine is an ergot medicine. It works by narrowing the blood vessels around the brain. Dihydroergotamine nasal is used to a treat migraine headache attack. Dihydroergotamine nasal will only treat a headache that has already begun.
The Definition of Positive Psychology. Positive psychology is a science of positive aspects of human life, such as happiness, well-being and flourishing. âscientific study of optimal human functioning [that] aims to discover and promote the factors that allow individuals and communities to thriveâ.
Positive reinforcement is giving something pleasant after a behavior. 1  This increases the probability that the behavior will continue. Examples are: 2  Having a job and going to work every day to receive a paycheck. 3  Receiving praise after a musical performance would increase the amount that you perform.