PSYC 1000 Lecture Notes - Lecture 6: Cochlear Nerve, Sound Localization, Sound
27 Jun 2018
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Module 25 the chemical senses (smell and taste)
Olfactory sense: the sense of smell
Gustatory: our sense of taste. 5 basic tastes (bitter, sweet, salty, sour,
umami)
Gustatory pathway: axons of taste receptors cells from nerves that
project to brains stem thalamus then, frontal cortex
Synesthesia: sensations from one sensory system are perceived as
thought from another sensory system. Some people can see the colour
blue.
vestibular sense: sense of balance (orientation) involves fluid filled
semicircular canals in the inner ear.
. Otoliths move in the fluid when the head rotates or tilts,
Odorants: airborne chemical that are detected as odours, odors can
evoke powerful memories
Olfactory receptor neurons: sensory receptor cells that convert
chemical signals form odorants into neural impulses that travel to the
brain
Papillae: bumps on the tongue that contains clumps of the taste buds
Taste buds: clusters of sensory receptor cells that convers chemical
signals from food into neural impulses that travel to the brain.
Olfactory bulbs: info carried along the olfactory nerves first to
structures
Ageusia: inability to taste.
Kinesthesis: movement and position of our body parts
Module 26: the tactile or cutaneous senses; touch, pressure,
pain vibrations.
Tactile or cutaneous: are the senses that a combination of skin senses
1Free nerve endings: located near the surface of the skin. sensory
receptors that convert physical stimulus into touch, pressure or pain in
pulses. “general” touch, temperature, light pressure or pain.
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Document Summary
Module 25 the chemical senses (smell and taste) 5 basic tastes (bitter, sweet, salty, sour, umami) Gustatory pathway: axons of taste receptors cells from nerves that project to brains stem thalamus then, frontal cortex. Synesthesia: sensations from one sensory system are perceived as thought from another sensory system. Some people can see the colour blue. vestibular sense: sense of balance (orientation) involves fluid filled semicircular canals in the inner ear. Otoliths move in the fluid when the head rotates or tilts, Odorants: airborne chemical that are detected as odours, odors can evoke powerful memories. Olfactory receptor neurons: sensory receptor cells that convert chemical signals form odorants into neural impulses that travel to the brain. Papillae: bumps on the tongue that contains clumps of the taste buds. Taste buds: clusters of sensory receptor cells that convers chemical signals from food into neural impulses that travel to the brain. Olfactory bulbs: info carried along the olfactory nerves first to structures.
