Category: L

The tendency to respond to stimuli that are arranged close to each other as groups rather than as separate entities.  

The premise that learning takes place when responses are rewarded. The psychological principle that positively reinforced behaviors will be repeated and negatively reinforced behaviors will diminish or be extinguished.  

The tendency to perceptually close gaps in slightly incomplete figures, Gestalt psychology.  

A statute. In science, reliable principle, standard, relationship, or observation; a fact. A scientific statement that is found to apply to a class of natural occurrences.  

The name given by French researchers to the human immunodeficiency virus (HIV).  

The earliest example of a patent medicine containing opium was first concocted by Paracelsus in the early part of the sixteenth century. Thomas Sydenham is also credited with its development, but it was somewhat different in its ingredients. A more powerful mixture was compounded by Thomas Dover in 1732, known as Dover’s powder. A solution…

An illness resulting from actions taken by the healer to treat a disease, iatrogenic.  

A classical secondary school with a curriculum largely centered around Greek and Latin; its primary purpose being preparation for college.  

A major horizontal fissure on each side of the cerebral hemisphere, separating the frontal and parietal lobes from the temporal lobe.  

An organizational structure allowing for communication to flow horizontally to another part on the organizational chart.