Chemical Mechanical Electromagnetic Temperature Pain . Gustation, Olfaction, pH, oxygen Hearing, Balance, Position, Touch Vision, Electric, Magnetic. Receptors Act as Transducers . Receptors Act as Amplifiers .
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Gustation, Olfaction, pH, oxygen
Hearing, Balance, Position, Touch
Vision, Electric, Magnetic
Receptors are more sensitive in the lower range of their perceptual field
Receptors Present Relative Information
Some Receptors are Phasic, Some are Tonic
Receptors can fatigue – Example Olfaction
Receptor input can be modified by the CNS
Umami – the taste of deliciousness also involves a G protein complex but its effectors is not known
This receptor is triggered by the the amino acid glutamate. Like the NMDA receptor involved in long term potentiation, the receptor allows Ca++ and Na+ to enter and depolarize the cell– making it more sensitive. A much lower amount of another molecule will be required to initiate firing.
Glutamate – monosodium glutamate is a primary ingredient of soy sauce.