Choice and Uncertainty Clog the Bottleneck of Central Processing

In today's fast-paced computer age, multitasking has become routine. But even the most skillful multitaskers can't “think” about two tasks at exactly the same time. Psychologists and neuroscientists study parallel processing in the brain by modeling information as traveling sequentially through three processing stages categorized as perceptual, decision (the central black box of the mind), and motor output. A long-standing hypothesis holds that...