Visual perception and visual sensation are both interactive processes, although there is a significant difference between the two processes. Sensation is defined as the stimulation of sense organs Visual sensation is a physiological process which means that it is the same for everyone. We absorb energy such as electro magnetic energy (light) or sound waves by sensory organs such as eyes. This energy is then transduced into electro chemical energy by the cones and rods (receptor cells) in the retina. There are four main stages of sensation. Sensation involves detection of stimuli incoming from the surrounding world, registering of the stimulus by the receptor cells, transduction or changing of the stimulus energy to an electric nerve …show more content…
For example, if one was given a picture of a triangle that was half completed and someone was asked to explain what they saw, the normal tendency would be to say that it was a triangle. Even though the triangle was half complete it could still be viewed as a triangle. This tendency is referred to as closure. The third visual perception tendency in perception is similarity. In similarity size, shape, color, or form tend to be grouped together. For example if two bands are walking down the street side by side and their uniforms are different colours, the bands will be seen as two separate groups, and not as one large group. Some of the factors that can effect visual perception are what our expectations might be, the psychological state of consciousness that you are in, and also what your past experiences might have been in past perceptions. These factors allow us to perceive the world in a different way. Attention is defined as a cluster of integrated events and processes that determine which stimuli receive further processing. Focusing ones attention on a particular object or even at is fairly easy. This is not so for every sense. Consider a game of women’s volleyball. Hardly any of the male spectators care about the game as where all of their attention is on the women who play it. Perceptual set is another factor that can effect visual perception. Perceptual set is a predisposition to perceive stimuli in a specific way;
The human brain is capable of perceiving and interpreting information or stimuli received through the sense organs (i.e., eyes, ears, nose, mouth, and skin) (Weiten, 1998). This ability to perceive and interpret stimulus allows the human being to make meaningful sense of the world and environment around them. However, even as the human being is able to perceive and interpret stimuli information through all sense organs, stimuli is most often or primarily interpreted using the visual (eyes) and auditory (ears) sense organs (Anderson, 2009). However, for the purpose of this paper, the visual information process will be examined.
The way we perceive objects depends on different things. One thing that changes the way we view things is monocular depth cues. Monocular depth cues are cues on depth perception that are accessible only to one eye at a time. There are actually a couple of different monocular depth cues. The ones that I will cover will be size constancy, aerial perspective, linear perspective, and texture gradient. Size constancy refers to the tendency to perceive an object or objects as the same size regardless of it being near or far. For example, the imagineers at Walt Disney World use this with their Christmas tree to make it appear bigger. At the bottom of the tree, they place ornaments that are huge. Since people see the huge ornaments at the bottom of
It may be that a genetic predisposition to perception exists, but that situational factors also have to be in place for it to develop.
The term sensation is used when referencing the process of sensing the environment through taste, touch, sound, smell, and sight (Goldstein, 2014). Moreover, it is the process that occurs once the sensory receptor experiences stimulation, which in turn produces nerve impulses that are sent to the brain to be processed in its raw form, then perception comes into play (Goldstein, 2014). Perception is used to describe the way people interpret these sensations and tries to make sense of everything around them on a daily basis. Perception is the occurrences of the brain
The first thing that I learned about perception was earlier discovered by a psychologist by the name of Max Wertheimer. He discovered that our body clearly separates images into figures
Humans have a unique and wonderful device in how one sees. The eye and brain work together to turn the world into visual data one’s brain can understand and use. There are some eye conditions that inhibit the sight or the recognition of the shapes one sees. Research continues to overcome these conditions as well as to further understand the biochemical reaction that gives humans the sight and understanding one has of visual data. Included in the paper are some of the latest research methods.
Early studies have widely researched attention with selective processing (Driver, 2001). Broadbent (1958) filter theory of attention states that certain information does not require focal attention. It is based on certain stimulus attributes such as colour and shape (Friedenberg, 2012). A previous study carried out by Treisman and Schmidt (1982) proposes that when attention is diverted from a display of several figures, the participants incorrectly combine the features of colour and shape therefore increases the illusory conjunctions portrayed by the participants (Tsal, 1989). Another study by Shaw (1978) found that reaction time of participant to identify targets varied with the probability that a target would appear in a particular display location. These results indicate that different amounts of attention towards the targets are distributed to different positions in the visual field. However, Houck and Hoffman (1986) found that the feature integration of colour and orientation can sometimes be accomplished without attention (James et al.,
A perceptual constancy, which the shape of a rigid or “moving” object as constant despite changes in the size and viewing angle of the image the object casts on the
a.) Prosopagnosia or face blindness as it is sometimes called is a good example of the difference between sensation and perception. The individual cannot identify their own face or their best friend’s face from any other. The senses are all right in the individual; however, the area of the brain that holds the information is not working. Therefore, the perception is left with a blank slate for the most part.
While these different sensations and perceptions are different many of them do go together, this is called intermodal perception. This type of perception is the integration of two or more senses at one time. An example of this would be infant’s reaction to sound. When an infant hears a noise they turn their head and look in the general direction of the sound. Typically this integration of different perceptions is seen the most after the first six months of
We see things with our eyes through different visual cues this is called “Depth Perception”. “Depth perception is the use of two different types of visual cues to perceive depth, Binocular cues and Monocular cues” (Department of Psychology,2015). “Depth perception lets us view items in three dimensions and the distance of items. We use several cues to perceive the distance (or depth) of the objects from us and from each other” (Department of Psychology,2015). Goldstein (1984) stated that Cues for seeing depth come from binocular disparity, and also from a range of monocular cues such as motion parallax, linear perspective, relative size, interposition, relative height, and texture gradients. (as cited in Laboratory Manual: Psychology 111/112