Why Babies Are Geniuses

Cute as they are, babies can seem, well, pretty dumb. But the speed at which they sprout neurons, make sense of an entirely new world, and master skills puts the brainiest grown-up to shame.

Child Development

The speedy physical and psychological changes that children undergo from birth through adolescence often leave parents wondering how best to care for them at each stage. From how to talk so kids will listen to when to back off and allow them to fail, PT's experts weigh in.

Cognition

Quite simply, cognition refers to thinking. There are the obvious applications of conscious reasoning—doing taxes, playing chess, deconstructing Macbeth—but thought takes many subtler forms, such as interpreting sensory input, guiding physical actions, and empathizing with others. The old metaphor for human cognition was the computer—a logical information-processing machine.

Intelligence

Reading a road map upside-down and generating synonyms for the word "brilliant" are two very different skills. But each is a measurable indicator of general intelligence, a construct that includes problem solving abilities, spatial manipulation and language acquisition. Scientists generally agree that intelligence can be captured by psychometric tests.