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.
Watson described the purpose of psychology as: âTo predict, given the stimulus, what reaction will take place; or, given the reaction, state what the situation or stimulus is that has caused the reactionâ (1930, p. 11). * All behavior is learnt from the environment.