Both light and sound travel as waves, with characteristics that allow people with typical vision and hearing to perceive and categorize them when they reach their eyes and ears: “That’s a small red dog barking,” someone might say. But while people can easily name most colors in different groups—distinguishing the specific frequencies and wavelengths of
When Fred VanVleet brings the basketball up the court, the Toronto Raptors guard needs to read the defense and decide his next move while still controlling a continuous flow of movements to keep his dribble alive. Depending on the actions of his teammates, and the opposing defenders, “Steady’ Freddy may have to change plans of
More than 80 percent of the 250,000 Americans living with a spinal cord injury lose the ability to urinate voluntarily after their injury. According to a 2012 study, the desire to regain bladder control outranks even their wish to walk again. In a UCLA study of five men, neuroscientists stimulated the lower spinal cord through
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