Senses and Perception (Part2)
Senses and Perception (Part2) PSYC 1101 B
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This 3 page Class Notes was uploaded by Nathalie mautes on Saturday February 27, 2016. The Class Notes belongs to PSYC 1101 B at Georgia Regents University taught by jane hodges in Spring 2016. Since its upload, it has received 25 views. For similar materials see General Psychology in Psychlogy at Georgia Regents University.
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Date Created: 02/27/16
5 Senses Kinesthesis: Being able to notice changes in body position and movements without relying on your five senses. This can include walking, dancing, ect. VISION - It is based on the wavelengths which include spectrums known a ROYGBIV (Red, Orange, Yellow, Green, Blue, Indigo, and Violet). Humans are only able to see at ranges from 300 750 nm. For example, we are unable to see ultraviolet light such as the sun, or infrared light like a laser. The Process of light (physical stimulus) Light hits the cornea of your eye which is considered the membrane of the eye light goes through the pupil (black dot in center of the eye) through the iris (constricts/ dilates the pupil) lenses project images onto the retina Optic nerve flips the images finally sent to the occipital for interpretation. Accommodation is the bending of the images to be projected onto the retina. If the images are not bend properly that can result in Photo receptors include: Cones which allows you to see certain color; Rods that allow you to see light and adapt to the dark. Trichromatic Theory: is a theory developed by Thomas Young and Herman von Helmholtz that cones consist of the 3 colors Red Green and Blue that helps you see. Opponent Process Theory: Theory that if you stare at something long enough you will see the after image. For Example: Black you will see white, yellow you will see blue, green you will see red. Figure Ground Perception: is the image you choose to see in the background of a picture. Depth Perception: is the ability to see in 3 dimension. This is tested as young as 8 month old baby using the Visual Cliff Test. Constancy: meaning that all objects remain the same regardless of the changes in the retina. For Example: Color Brightness Constancy in regards to the way the retina perceives shadows. Size Constancy Size is perceived as the same regardless the change in distance. Shape constancy Your eyes connect object to see a shape that is not really there. HEARING The physical stimulus of hearing is considered as sound (sounds waves/air). Frequency measured in hertz (1 wave/second), the faster the frequency the higher the pitch. As you get older you start to lose your ability to hear, and unable to hear higher frequencies. Amplitude: The height between the top and bottom of a wave length: The higher the amplitude the louder the sound. Measure in decibels (average: 60 decibels) anything over 160 can cause damage to your ears. Transduction occurs through the hairs of your ear and sends those receptors cells to the brain for transmission. The vestibular system involves sensory information about motion, equilibrium/balance, and spatial orientation from the vestibular apparatus, which includes the utricle, saccule, and three semicircular canals in the ear. TOUCH (The skins in the largest organ of the body) Senses in touch includes: cold, pain, warmth, and pressure Pain is the most important because it shows danger or that something is wrong Gate control theory: Located in the spinal cord it is said that if large nerve fibers are stimulated it closes the pain signal from going to the brain. For Example: epidurals, and natural pain relievers such as endorphins. If you stimulate small nerve fibers gates open and you will experience pain Pain receptors: Nociceptors (in the skin and organs) A Delta Fibers responsible for the pain that travels to the brain C Fibers responsible for aching, throbbing, and burning sensation TASTE Receptor cells include the taste buds on the tongue Taste include: sweet, sour, bitter, salty, umami (meat/poultry) SMELL Also known as olfaction which is triggers by the stimulus of odor through olfactory bulb/nerves. Located close to the hippocampus which is responsible for memory. That is why we associate certain smells with a close memory.
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