the term blind spot in relation to the eye? The blind spot contains no photoreceptors; it is the site where the optic nerve leaves the eyeball 6. What function does the choroid of the vascular layer have in common with the pigmented layer of the retina? Both contain pigment‚ which prevents light scattering in the eye. 7. How do the rods and cones differ from each other? Rods have a rod-like outer segment containing the photopigment. Cones have a shorter cone-shaped outer segment. Rods respond
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5 types of sensory receptors are: chemoreceptor A sense organ‚ or one of its cells (such as those for the sense of taste or smell)‚ that can respond to a chemical stimulus; a chemosensor. mechanoreceptor Any information about mechanical changes in its environment‚ such as movement‚ tension and pressure. photoreceptor A specialized neuron able to detect‚ and react to light nociceptor A sensory receptor that sends signals that cause the perception of pain in response to
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Myers Psychology 6/e Test Bank II CHAPTER 5 Sensation Learning Objectives Sensing the World: Some Basic Principles (pp. 172-177) 1. Contrast the processes of sensation and perception. 2. Distinguish between absolute and difference thresholds‚ and discuss research findings on subliminal stimulation. 3. Describe the phenomenon of sensory adaptation‚ and explain its functional value. Vision (pp. 177-188) 4. Explain the visual process‚ including the stimulus input‚ the structure of the
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illusions are just cases of errors in judgment; they do not physically exist. Our eyes capture light from an object that emits or reflects light and focuses the images upon the retina where messages are then carried on to the brain. The retina is found at the back of the eye and it contains cells that respond to light. The retina‚ when hit by light‚ triggers nerve impulses which are then sent to the brain‚ the brain‚ in turn‚ interprets the data coming in as light and shadow‚ form and colour (Bruno‚
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Anatomy of the Eye More from this chapter | PDF version (print quality) Video lecture | Anatomy Questions | Pimp Questions Anatomy Flashcards | | Before discussing conditions affecting the eye‚ we need to review some basic eye anatomy. Anatomy can be painful for some (personally‚ I hated anatomy in medical school) so I’m going to keep this simple. Let us start from the outside and work our way toward the back of the eye.Eyelids The eyelids protect and help lubricate the eyes. The
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The external world consists of different stimulus and sensations that can affect an individual’s perception. The simple behaviour of watching the sunset can induce complex cognitive processes in the visual and auditory systems. 6:00pm With the onset of the setting sun‚ multiple components in the external environment begins to change concurrently. There is an increase in sound‚ both in volume and in intensity‚ relative to an increase in traffic and number of cars‚ the sound of crickets and birds
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line of premium notebook computers‚ the MacBook Pro. Although many people feel that Apple overcharges for their notebooks‚ they must understand that it is hand built and made for power users. This is not a budget notebook. The Apple MacBook Pro with Retina display has truly been atop of the competition for quite some time now. This is thanks to Mac’s easy to use interface‚ sleek design and laptop durability and speed. Though other laptops give the MacBook Pro a run for its money‚ there is no denying
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weight could have eyes as big as that of a human being who weighs 200 pounds (91 kg).[1] Although the size of the eagle eye is about the same as of a human being‚ the back side shape of the eagle eye is flatter. An eagle’s retina allows for a higher Nyquist limit.[4] Its retina is more pronounced with rod cells and cone cells. In the eagle‚ the retina’s fovea has one million cells per mm as compared to 200‚000 per mm in humans. Eagles have a second fovea and three eyelids (two of which are visible)
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Intro Senses connect us to ourselves and surroundings. Sensation: the raw information‚ doesn’t yet mean anything to you until... Perception: the mental process of sorting‚ identifying‚ and and arranging raw sensory data. Enduring Issues in Sensation and Perception Person-Situation: how accurately perceptual experiences reflect the world Mind-Body: experience depending in biological processes Diversity-University: How similarly people experience events Stability-Change‚ Nature-Nurture: How
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Are There Blind Spots in Our Eyes? ABSTRACT Our eyes are vital organs because they help us visualize our surroundings. But are our eyes perfect in seeing what’s right in front of us? Sadly I learned in our evolution‚ nature messed up at one point and gave us blind spots in our eyes. This project shows why we have these blind spots‚ how to discover them‚ and how big they are. I researched on how our eyes see things; why when one eye is closed‚ the other eye sometimes can’t see what’s in front
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