Flashcards in Module 18 Deck (26):
Sensation and perception are actually parts of --
one continuous process.
Bottom-up process by which the physical sensory system receives and represents stimuli at the very basic level of sensory receptors and works up
Top-down mental process of organizing and interpreting sensory input from experience and expectations
-- is sensory analysis that begins at the entry level, with information flowing from the sensory receptors to the brain.
-- is information processing guided by high-level mental processes, as when we construct perceptions by filtering information through our experience and expectations
all our senses receive -- often using specialized
all our senses transform that stimulation into --
all our senses deliver the neural info to --
conversion of one form of energy to another
Predicts how and when we will detect a faint stimulus
amid background noise
signal detection theory
individual absolute thresholds vary depending on the -- and also on our experience, expectations, motivation, and alertness
strength of the signal
Minimum stimulation needed to detect a particular stimulus 50% of the time
Input, below the absolute threshold for conscious awareness
Activating, often unconsciously, associations in our mind, thus setting us up to perceive, remember, or respond to objects or events in certain ways
Minimum difference a person can detect between any two stimuli half the time; increases with stimulus size
For an average person to perceive a difference, two stimuli must differ by a constant minimum percentage (not a constant amount); exact proportion varies, depending on the stimulus.
-- are those that are too weak to detect 50 percent of the time
-- is a fact, such sensations are too fleeting to enable exploitation with subliminal messages.
-- may produce a fleeting, subtle, but not powerful, enduring effect on behavior
-- Is diminished sensitivity as a consequence of
sensory adaptation aids focus by --
reducing background chatter
T/F: sensory adaptation influences emotions
Mental tendencies and assumptions that affect (top -
down) what we hear, taste, feel, and see
What determines our perceptual set? -- organize and interpret unfamiliar
information through experience.
Preexisting schemas influence -- of ambiguous sensation interpretation, including gender stereotypes.