SENSATION & PERCEPTION

process of detecting, converting, & transmitting raw sensory information from the external & internal environments to the brain

process of selecting, organizing, & interpreting sensory information into meaningful patterns

eyes, ears, other sense organs contain receptor cells that detect & process sensory information

converts receptor’s energy into neural or electrochemical impulses that are sent on to brain

converting sensory inputs into different sensations

filtering and analyzing incoming sensations before sending neural message on to cortex

studies the link between physical characteristics of stimuli and our sensory experience

smallest amount of a stimulus we can reliably detect

minimal difference needed to detect a stimulus change; also called the “ just noticeable difference”(JND)

process of becoming more sensitive to stimulation

process of becoming less sensitive to stimulation

distance between the crests (or peaks), which determines its HUE (color such as pink and green)

amount of energy in light waves (waves amplitude and height) which influence brightness

purity or richness of color(deep red apple is highly saturated)

transparent protective structure

round opening wherein size varies with lightning conditions.

colored part of the eye, ircular muscle that contracts or expands to let the amount of light.

clear structure with adjustable shape to focus on objects at varying distance

at the back of the eyeball, a postage stamp sized structure with 2 types of light

sharpness of vision, can discriminate usual details through Senellen chart.

difficulty focusing distant objects.

difficulty focusing nearby objects.

abnormal curvature of the lens, some parts of visual fields are out of focus or fuzzy

farsightedness due to aging.