The Greater Los Angeles Area, or the Southland, is a term used for both the urbanized region and Combined Statistical Area (a group of interacting metropolitan areas) sprawling over five counties in the southern part of California, namely Los Angeles, Orange, San Bernardino, Riverside, and Ventura counties. Throughout the 20th century, it was one of the fastest-growing regions in the United States, although growth has slowed since 2000. As of the 2010 U.S. Census, the Los Angeles metropolitan area had a population of about 12.8 million residents. Meanwhile, the larger metropolitan region's population at the 2010 census was estimated to be over 17.8 million residents, and a 2011 estimate reported a population of about 18.1 million. Either definition makes it the second largest metropolitan region in the country, behind the New York metropolitan area, as well as one of the largest urban agglomerations in the world.
The agglomeration of the urbanized Greater Los Angeles area surrounds the urban core of Los Angeles County. The regional term is defined to refer to the more-or-less continuously urbanized area stretching from Ventura County to the southern border of Orange County and from the Pacific Ocean to the Coachella Valley in the Inland Empire. The US Census Bureau defines the Greater Los Angeles area to include the entire Los Angeles county, Ventura County, Orange County and the two counties of the Inland Empire, making up the "Los Angeles-Long Beach-Riverside, CA" Combined Statistical Area. However this Census definition includes large, sparsely populated and primarily desert swaths of Los Angeles, San Bernardino and Riverside counties that are not part of the urbanized region. The term "Greater Los Angeles" does not include San Diego and Imperial counties, whose urbanized areas are not geographically continuous with the urbanized area surrounding Los Angeles.
The Salk Institute, where researchers analyzed the data from the first of several brain exams on Genie.
Genie (born 1957) is the pseudonym of a feral child who was the victim of extraordinarily severe abuse, neglect and social isolation. Her circumstances are recorded prominently in the annals of abnormal child psychology. Born in Arcadia, California, United States, Genie's father kept her locked alone in a room from the age of 20 months to 13 years, 7 months, almost always strapped to a child's toilet or bound in a crib with her arms and legs completely immobilized. During this time she was never exposed to any significant amount of speech, and as a result she did not acquire a first language during childhood. Her abuse came to the attention of Los Angeles child welfare authorities on November 4, 1970.
In the first several years after Genie's life and circumstances came to light, psychologists, linguists and other scientists focused a great deal of attention on Genie's case, seeing in her near-total isolation an opportunity to study many aspects of human development. Upon finding that she had not yet learned a language, linguists saw Genie as potentially being an important way to gain further insight into the processes controlling language acquisition skills and linguistic development. Extensive observation of their new-found human subject enabled them to publish multiple academic works testing theories and hypotheses identifying critical periods during which humans learn to understand and use language. In addition, tests on Genie's brain found discrepancies far larger than any prior observations of people with fully intact brains, giving rise to many new hypotheses on brain lateralization and its effect on both language and other mental processes.