Stimuli that lie below our threshold of conscious awareness

We become more sensitive to weak stimuli AND less sensitive to unchanging stimuli.

Your friend that you haven't seen in awhile is coming over for a sleep over. They are supposed to be there at 5 and it's 5:03. Then you hear a knock at the door, you sprint there, and throw it open only to find nobody there. Example of?

We notice things based on how strong they are (sights, sounds, etc.) AND our physical and psychological state

What weighs more, a pound of feathers or a pound of bricks?

the minimum amount of difference that can be detected between two stimuli

taking sensory information in and then assembling and integrating it

the stimulation of sensory receptors and the sensory information sent to the central nervous system (spinal cord & brain)

psychological process by which we interpret sensory stimulation; reflects learning, expectations & attitudes

Using models, ideas, and expectations to interpret sensory information

the weakest amount of a stimulus you can sense.

25/38 people meet their unfortunate demise on the border of US and Canada? Where do you bury the survivors?

How much dirt is in a 2'x3'x3' hole?