Features

• The New Genetics of Mental Illness

  Life's experiences add molecular switches to the genes that control our brain activity, affecting how susceptible we are to depression, anxiety and drug addiction

  Edmund S. Higgins   | June 1, 2008  | 2

• Spheres of Influence

  Split-brain patients—whose two hemispheres are separated surgically—provide fascinating clues to how a unitary sense of consciousness emerges from the furious activity of billions of brain cells

  Michael S. Gazzaniga   | June 1, 2008  |

• Your Inner Spam Filter

  What makes you so smart? Might be your lizard brain

  Andrew W. McCollough and Edward K. Vogel   | June 1, 2008  |

• Unmasking Memory Genes

  Molecules that expose our genes may also revive our recollections and our ability to learn

  Amir Levine   | June 1, 2008  | 2

• How to Unleash Your Creativity

  Experts discuss tips and tricks to let loose your inner ingenuity

  Mariette DiChristina   | June 1, 2008  | 19

• Addicted to Starvation: The Neurological Roots of Anorexia

  Anorexia may represent a profound psychiatric disorder that spawns an addiction to deprivation

  Trisha Gura   | June 1, 2008  | 9

• Chronic Itching: Causes and Cures

  How to get relief from the insatiable need to scratch

  Uwe Gieler and Bertram Walter   | June 1, 2008  | 25

• Bisexual Species: Unorthodox Sex in the Animal Kingdom

  Homosexual behavior is common in nature, and it plays an important role in survival

  Emily V. Driscoll   | June 1, 2008  | 49