The cocktail party effect (listening to one voice when there be a ton of em) is an example of this.
What is selective attention?
Changing sensed light into a neural impulses our brain can interpret.
What be transduction?
Stimuli that is perceived below the absolute threshold (quick frame in a movie of Pepsi bubbles make you want to hit the concession stand).
What is subliminal?
The reason that young people may see the young person and old people may see the old person in this picture.

What is perceptual set?
Blue, green, red, yellow, purple, orange...
What is hue?
Starts at the sensory receptors and works up into the brain and higher levels of processing.
What is bottom-up processing?
The study of the relationships of physical stimuli and our psychological experience of them.
What is psychophysics?
Increases with the size of the stimulus.
What is the difference threshold (or just noticeable difference)?
ESP: "The number you're thinking of is 12."
What is telepathy?
The black thing in your eyeball.
What is your pupil?
Perceptions that are constructed from the sensory input using our experience and expectations.
What is top-down processing?
Seeing a candle flame 30 miles away on a perfect night 50% of the time.
What is absolute threshold?
To perceive a difference between 2 stimuli the change must be by a constant percentage, not a constant amount.
What is Weber's Law?
ESP: "I feel that my son got hurt at school."
What is clairvoyance?
Mine is a gorgeous hazel, and I have two of them. They also have crazy muscle, yo.
What is my iris?
Misdirection, a trick used by every magician, uses this idea to fool us because our vision is directed elsewhere.
What is inattentional blindness?
Theory that explains how parents can pick out their child's faint voice in a loud mall.
What is signal detection theory?
When you walk into a smelly room and it's so nasty, but after 10 minutes you don't smell it anymore.
What is sensory adaptation?
ESP: "You will meet the love of your life after school at the Starbucks on DuPont Road."
What is precognition?
Bends and focuses light onto the retina.
What is the lens?
The three basic steps of our sensory systems.
What is receive, transform, and deliver sensory information?
An example is when we notice the word NURSE quicker after we see the word DOCTOR than we do after the word BREAD.
What is priming?
The phenomenon of stimuli that is so different that we can not help pay attention to them.
What is pop out?
Studying ESP.
What is parapsychology?
Process by which the lens changes shape so you can focus on things near and far.
What is accommodation?