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Sensation & Perception (Part 2) - Coggle Diagram
Sensation & Perception (Part 2)
How we hear sounds?
Frequency ~ Number of wave cycles within a given time
Amplitude ~ Physical strength of a wave
Soundwave travel through the air and hit the
tympanic membrane
(eardrum)
Moving on to the bones of the middle ear.
Subsequently, the Cochlea which tranduce sound wave.
Towards the Auditory nerve ~ Neural pathways connecting the ear and brain
Auditory Cortex ~ located in the Temporal lobe
Psychological Qualities of Sound
Loudness ~ Intensity (amplitude) of sound wave
Timbre ~ Quality of soundwaves based on complexity
Pitch ~ sensory characteristics of sound produced by frequency of sound wave
Sense of Smell
Anatomy of the Nose
Transferred through the nose and to the ceiling of nasal passage
Ordor molecules dissolves into mucus layer
Odor Molecules are airborne
Transferred through various receptor cells
Transferred into the nerve
Olfactory Bulbs ~ Brain sites of olfactory processing
Phermones ~ Chemical signals released by organisms to communicate with other members of the species
Olfaction ~ Sense of smell
Taste
Primary Taste Sensations
Salty
Sweet
Bitter
Sour
5th taste sensation ~ umami
Spicy is not actually tasted, but chilli makes your tongue hurt, and pain releases endorphines hence giving the illustration of liking spice
Skin senses ~ Protects against surface injury, holds in bodily fluid, and regulate temperature
Function
Warmth
Cold
Touch
Pain
Types of Touch Senses
Sense of Heat ~ Thermoceptors (200,000 nerve endings)
Sense of Pain ~ Cutanenous pain receptors (3 million nerve endings)
Sense of pressure ~ Pressure receptors (500,000 touch and pressure nerve endings)
Position and Movement
Vestibular Sense ~ sense of body orientation with respect to gravity (Receptors in semicircular canals [inner ear])
Kinestatic Sense ~ Sense of body position and movement of body parts relative to each other (Receptors in joints, muscles, and tendons)
Visual Input