Lefty Gene Found, Linked to Mental Illness

Left-handed people more likely to develop neural disorders

(NEWSER) - About 10% of the population is left-handed, but a disproportionate amount of people with schizophrenia—20%—are lefties. Schizophrenia is just one of a number of psychiatric and developmental disorders that are more common in left-handed people, including dyslexia, ADHD, language difficulties, and mood disorders. Researchers think this could have something to do with the fact that each half of the brain performs distinct functions. Typically, a person's brain has a dominant side; in righties, that side is usually the left hemisphere. But 30% of lefties exhibit right-hemisphere dominance or a distributed pattern of dominance, which could lead to the greater risk of brain disorders. More»

Study links creativity to gene associated with mental illness

(NEWSER) - The reason why many creative people like Vincent Van Gogh show self-destructive tendencies is in the genes, researchers have discovered. Scientists in a new study found that volunteers identified as the most creative also had the highest levels of a gene variant associated with psychosis and depression, the Daily Telegraph reports. More»

(NEWSER) - Mental health experts have lost touch with the benefits of old-fashioned insane asylums, where patients once enjoyed a sense of community and jobs like cleaning and farming, Oliver Sacks writes in the New York Review of Books. Touching on a new book of Christopher Payne photographs called Asylum—which offers "a mute and heartbreaking testimony" to "once-heroic structures"—Sacks argues that modern state hospitals, which rely on antipsychotic drugs, ignore "the benign aspects of asylums." More»

Research slowly unravels genetic causes of mental illnesses

(NEWSER) - Scientists have discovered genetic variations that link schizophrenia to manic depression for the first time, the Independent reports. Research made possible by technical advances found that thousands of tiny genetic faults raised the risk of both mental illnesses, which had previously been believed to be completely distinct conditions. Experts hope the findings will lead to new and more effective treatments for both disorders. More»

Democrat is sixth southpaw among postwar presidents

(NEWSER) - Barack Obama’s inauguration continues the lefty domination of the White House—after all, five other postwar presidents have been southpaws, too, MSNBC reports. Only about a tenth of the population is left-handed, but that includes a disproportionate number of politicians, athletes, and artists. “From a statistical standpoint, it looks like something’s going on, but what it is, we don’t know,” one professor says. More»