Chapter: Sensation and Perception
Sensation and Perception
Sensation versus Perception
Psychophysics and Thresholds
Vision
USING PSYCHOLOGY: Color
Visual receptor: The Eye
Operation of the Eye
Eye Problem: Color Blindness
Hearing
Operation of the Ear
Ear Problem: Deafness
Chemical senses—Smell and Taste
Chemical Senses Receptors: The Nose and Taste Buds
Operation of the Chemical Senses
Other senses: Skin
Other Senses: Balance and Body Position
Perception
Figure-ground Perception
The Wholeness of Figure Perception
Perceptual Grouping
Perception and Attention
Stimulus Variation and Perception …show more content…
They give us our sense of touch (or pressure), pain, hot, and cold. The physical stimuli for the vestibular sense are rotation and the position of the head. These give us our "sense of balance." Three semicircular canals and two otolith organs act as receptors. We sense our body position from receptors located in our muscles, tendons, and joints. Perception is based on certain factors of organization, including the figure-ground relationship. Another factor is the wholeness of figures (determined by symmetry, closure, and familiarity). A third is the grouping of elements (based on proximity, similarity, continuation, and common fate). Three other factors importantly involved in perception include attention, variations in stimulus input, and the constancies
(shape, size, brightness, and color). There are two important jobs in visual perception. One is judging distance or depth, which is based on stimuli and cues within the organism. The other is detecting motion, which is based on the order in which sensing cells fire and/or movement relative to the environment or another object. In …show more content…
The pigment of paint absorbs almost all but one color of the spectrum -- as does colored glass. The subtractive mixture of several colors yields black.
USING PSYCHOLOGY: Color An interesting application of the principles of sensation and perception involves their application to how we dressSensation and Perception 191 PSYCHOLOGY: Exploring Behavior ourselves or decorate our environment. Colors as well as shapes and lines can play a vital role in projecting an image and creating a mood. Think of the many common expressions that recognize this fact: "seeing red," "green with envy," "feeling blue," "in a brown funk," "purple passion." Some colors are cool, such as blue. Yellow, orange, and red are warm colors.
Green is the only color that looks cool in summer, warm in winter. Do you tend to wear brighter colors on a gloomy day?
Of course, some colors are simply more becoming to you than others. Your own coloring will make a difference. Wearing blue can emphasize blue eyes. Wearing yellow can make a