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Sensation and Perception, REFLECTIONS, I think music preference can be…
Sensation and Perception
Vision
We see when light enters the pupil and gets converted to electrical signals by rods and cones in the retina
Rods: photo receptors that allows night vision and seeing dim light
cones; allows sharp and central vision, color vision
Binocular Disparity: two eyes sees the same, but when they send information to the visual cortex in the brain, they are perceived differently
Synesthia: Joined feeling: like for example when you hear music and you see red or when you hear music but you feel it in your finger tips
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Touching
Tactile or cutaneous: Skin receptors or exteroceptors; they are located close to the skin and there are touch pressure, vibration, temperature pain
Proprioeception: muscle and joint receptors that are located in the tendons, muscles, and joints, these are the kinesthetic senses
The phantom limb phantom where after amputations, people sometimes feel like their missing limb is still there
in the video through tests and brain scans, it was discovered that the brain can remap itself after amputation, causing Derek to feel sensations in his phantom hand when his face was touched
Hearing
sound waves enter the auditory canal after being funneled by the pinna, this vibrates the tympanic membrane. Sound reaches the ccohlea and auditory hair cells or cilia convert the sound waves to electrical signals. These electrical signals goes to the auditory cortex in the brain
smell and taste
chemicals from the environment bind various receptor cells in order to have signal converted to an electrical signal that the brain can understand
Anosmia: sometimes physical trauma can destroy connections between the olfactory receptors that sends information to the brain and make people unable to smell
Tongue taste: the types of taste are sweet, sour, salty, bitter, and umami but the idea of taste zones is inaccurate
Multimodal Perception
color vision
Trichromatic theory
our cones have a preference for three kind of colors, red, green, and blue
Opponent process theory
our cones or the retinal ganglion cells that receive the information from our cone responds to pairs of colors, red-green, blue-yellow, and black-white
Absolute threshold
smallest detectable level of stimulation (the absolute threshold for sound would be the lowest volume level that a person can detect)
JND: The minimum level of stimulation that a person can detect 50 percent of the time (the smallest change in volume that a person could sense)
Signal detection
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signal detection studies allows us to see the absolute threshold of a sensory modality, the differential threshold and the effects of sensory adaptation and used for studies on decision making
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- I think music preference can be viewed as a perception because everyone's music tastes are different. There are many other artists that I listen to that my friend doesn't like or the genre of music is different because they prefer something pop while I prefer something R&B. That's why I think music is a subjective thing because everyone has different perceptions on their type of music.
- The dark and light Adaptation is something that happens to every human being because there were times in movie theaters when they turned off the lights and the movie hasn't started yet, where the environment is incredibly dark and it's why many people dirty the areas. By the time they turn on the lights that's when our eyes start to hurt due to the sudden lights that are flashing in our eyes.
- When I tried the color vision theories, I don't know why but it didn't work out for me because when I switched to the blank slide, all I saw was white or sometimes it would be different like the reference of red -green, it was red-yellow for me.
