Behavior is the outcome of the battle among internal systems.

At least 15 percent of human females possess a genetic mutation that gives them an extra (fourth) type of color photoreceptor - and this allows them to discriminate between colors that look identical to the majority of us with a mere three types of color photoreceptors.

I call myself a Possibilian: I'm open to...ideas that we don't have any way of testing right now.

The deep secret of the brain is that not only the spinal cord but the entire central nervous system works this way: internally generated activity is modulated by sensory input. In this view, the difference between being awake and being asleep is merely that the data coming in from the eyes anchors the perception.

All life will die, all mind will cease, and it will all be as if it had never happened. That, to be honest, is the goal to which evolution is traveling, that is the "benevolent" end of the furious living and furious dying.

Think about the brain as the densest concentration of youness. It's the peak of the mountain, but not the whole mountain.

Modern neuroimaging is like asking an astronaut in the space shuttle to look out the window and judge how America is doing.