Visual perception

person doing physical things. Therefore, based on adults’ perception on emotions in simulations, infants too can also see other people’s facial expressions at a distance of approximately 30 centimeters, which is exactly the same distance between a nursing baby and their mother. Unlike adults, infants imitate actions more than is necessary, even when it is not clear that the action is desirable. Basic Visual Function and Visual Attention…

The human visual system allows us to make sense of our environment. This system requires communication between the main organ (the eye) and the core organ (the brain) to understand external stimuli. The eye is extremely complex and requires various components for it to complete its function. The eye has 3 main layers the sclera, which maintains and supports the shape of the eye; the choroid, which provides oxygen and nourishment to the eye and includes the pupil, iris, lens; and the retina,…

recording electromagnetic energy and converting it to neural impulses for the brain to process. The eye also contains structures called the optic nerve and they blind spot. The optic nerve is located at the back of the eye and is in charge of carrying visual information to the brain so it can be further processed, such as when you snap a picture before it is printed out. The blind spot located on the retina where we cannot see anything that reaches this…

organism matures. Because a large majority of the neurons in the superior colliculus are visually responsive, Wallace et al.1 hypothesized that visual stimuli was necessary for the development of multisensory integration. To test this claim, he and his colleagues reared 9 cats in complete darkness and tested each neuron in the superior colliculus for responses to visual, auditory and somatosensory stimuli. It was found that, although sensory experience is not necessary for the superior colliculi…

the retina to the brain, perception goes from complex to extremely complex. In other words, being able to experience the real world is one of the marvelous opportunities that we have. This phenomenon starts with light getting in contact with the cornea continuing to the back of the eyes, to the retina, before light goes to the optic nerve and end up in the brain. This process appears to be simple; nevertheless, each little section of the eyes plays a huge role in perception and become…

metaphor that stood out to me that Elsaesser mentioned was cinema as a visual experience, more precisely cinema as eye or as a look and gaze. All of Elsaesser’s ideas can be related to and exemplified in the mystery/thriller…

Locking eyes with a stranger across the room can easily be marginalized as an occurrence, which only holds weight in half baked romantic comedies. This particular sentiment could not be further from the truth, as gaze and gaze direction plays an integral role in our non-verbal communications with other humans. The reaction of an individual to eye contact or gaze usually depends on the mutuality of the eye contact, such as in positive cases involving sexual of personal interest, or negative…

overall indicator of fluid reasoning in the perceptual domain with tasks that assess nonverbal concept formation, visual perception and organization, simultaneous processing, and visual-motor coordination, learning, and the ability to separate figure and ground in visual stimuli (Lichtenberger & Kaufman, 2013). For the subtest Block Design, Mr. Lewis scored in the 75th percentile rank. For Visual Puzzles subset, Mr. Lewis scored in the 16th percentile and at the Low Average. For Matrix Reasoning…

Of all the means through which humans perceive the world, sight is perhaps the most important. It is our primary means of understanding the physical nature of our surroundings, both immediate and distant. It is only natural that the great thinkers of antiquity were curious about the nature of vision, and inseparably, that of light itself. In the manner characteristic of ancient science, many common ideas about optics were “hit or miss”, so to speak. Certain Greek thinkers had hypotheses about…

argument was that the nervous apparatus in the eye itself is dedicated to detecting certain patterns of light and their changes. Upon studying the fibers in the optic nerve, the investigators found that there are four separate operations on the frog’s visual image. These operations that are independent of the level of general illumination includes sustained contrast detection, net convexity…