"Green" means "go," but what does "red" mean? Just about everybody says "stop" since we all have learned to imbue certain colors with meaning (or we would be road kill by now). Long thought to be ...

Sensory memories are stored for a few seconds at most. They come from the five senses: hearing, vision, touch, smell, and taste. They are stored only for as long as the sense is being stimulated. They ...