By Susan Munroe. Definition: In Canada, the party which wins the most seats in a general election forms the government. If the party wins more than half of the seats in the House of Commons or legislative assembly, then the party forms a majority government.y Susan Munroe. Definition: In Canada, the party which wins the most seats in a general election forms the government. If the party wins more than half of the seats in the House of Commons or legislative assembly, then the party forms a majority government.
Polysomnography (PSG), a type of sleep study, is a multi-parametric test used in the study of sleep and as a diagnostic tool in sleep medicine. The test result is called a polysomnogram, also abbreviated PSG.
Sleep studies are usually performed at night but can be performed during the day to accommodate shift workers. Polysomnography is performed to help diagnose sleep apnea, periodic limb movements, parasomnias and other disorders that disrupt sleep.