Module 6: Sensation and Perception Flashcards
Transduction
the process by which specialized cells in our body translate the physical stimuli of our body
Past Negative
pessimistic, negative, aversive orientation TO past
Past Positive
warm, sentimental, nostalgic, positive construction OF past
Present Hedonistic
hedonistic orientation attitude toward time and life
Present Fatalistic
helpless hopeless attitude toward the future and life
Future
planning for future goals, characterizing a general future orientation
Future Transcendental
orientation to future beyond one’s own death
Sensation
physical process during which our sensory organs respond to external stimuli
Perception
brain’s psychological process to make sense of the stimuli
Absolute Threshold
minimal amount of stimulation in order to detect a stimulus
Signal Detection
the way we measure absolute thresholds, involving presenting stimuli of varying intensities to a research participant in order to determine the level at which he or she can reliably detect stimulation
Differential Threshold (Just Noticeable Difference, JND)
smallest difference needed in order to differentiate between 2 stimuli
Webers Law
bigger stimuli require larger stimuli to be noticed
Bottom-Up Processing
build up to perception from the individual piece
Top-Down Processing
stimulus we’ve experienced in our past will influence how we process new ones
Sensory Adaptation
when a stimulus is constant and unchanging
Binocular Disparity
Difference in vision processed by L and R eye
Binocluar Vision
our ability to perceive 3d and depth because of dif in images of image on left and right
Rods
are primarily responsible for our ability to see in dim light conditions
Cones
see color and fine detail when the light detail
Primary Visual Cortex
where info about light orientation and movement being to come together
Sound Waves
changes in air pressure, physical stimulus for audition
Somatosensation
includes our ability to sense touch, temp, and pain
Mechanoreceptors
special receptors in skin, allow for conversion of one kind of energy into a form the brain can understand
Multimodal Perception
info from one sense has the potential to influence how we perceive info from another
Superadditive Effect of Multisensory Integration
respond more strongly to multimodal stimuli
Principle of Inverse Effectiveness
less likely to benefit from additional cues from other modalities if the initial unimodal stimulus is strong enough
