heh Flashcards
(17 cards)
What is sensation?
Sensation is when our sensory receptors and nervous system receive and represent stimulus from our environment.
What is perception?
Perception is the process of organizing and interpreting sensory information to recognize meaningful objects.
What is bottom-up processing?
Bottom-up processing starts at the sensory receptors and works up to higher level processing.
What is top-down processing?
Top-down processing constructs perceptions from sensory input by drawing on our experiences and expectations.
What is selective attention?
Selective attention is the focusing of conscious awareness on a particular stimulus (e.g., reading a book in a busy cafe).
What is inattentional blindness?
Inattentional blindness is failing to see visible objects when our attention is directed elsewhere.
What is change blindness?
Change blindness is failing to notice changes in the environment.
How do we process sound waves?
We process sound waves by receiving sensory stimulation, using specialized receptor cells, transforming that stimulation into neural impulses, and delivering the information to our brain.
What is transduction?
Transduction converts information from the environment through sensation into ideas through perception.
What is psychophysics?
Psychophysics is the study of quantitative relations between psychological events and physical events.
What is absolute threshold?
Absolute threshold is the minimum amount of stimulation needed to detect a stimulus half the time (e.g., seeing a candle 38 miles away).
What is signal detection theory?
Signal detection theory explains how we detect stimuli, depending on both the intensity of the stimulus and our psychological state (e.g., attention, motivation).
What does subliminal mean?
Subliminal refers to stimuli that are below one’s absolute threshold for conscious awareness.
What is priming?
Priming is when exposure to one stimulus influences how you respond to another.
What is difference threshold?
Difference threshold is the noticeable difference in the smallest change in a stimulus.
