Ch.5 Flashcards
sensation
detection of stimuli by sensory receptors; physiological process
perception
way that sensory information is interpreted,organized, & consciously experienced; psychological
process
absolute threshold
minimum amount of stimulus energy that must be present
Just noticeable difference (JND)
the minimum difference in stimuli required to detect a change
JND example
dim room= small change in light is noticeable
absolute threshold example
a candle light 30fft away
habituation
the reduction in response to a repeated performed movement
habituation example
wearing a perfume everyday for weeks, your nose becomes immune and ignores the smell.
brightness
the perceptual correlate of light intensity
hue
the experience that we describe with color name labels such as red or blue
saturation
the intensity of the hue experience,
pitch
The dimension of frequency determined by the wavelength of sound
loudness
the perception of the intensity of sound
timbre
the quality of a sound or musical tone
cornea
Clear membrane that covers the
surface of the eye, protection, focuses light coming onto the eye
iris
Colored portion of the eye; muscles attached to it control pupil