2007 Sensory Physiology

Stimulus Modality

Specificity

(doctrine of specific nerve energies - Mueller, 1826)

Receptors:

ADEQUATE STIMULUS: the type of energy that a receptor responds to under NORMAL conditions

Special Senses
"Not-so-special" Senses
Cochlea: sound Mechanoreceptors: touch/pressure
Retina: light Free nerve endings: pain/temperature
Olfactory epithelium: odourants Muscle and joint receptors: body position (proprioception)
Taste bud: tastants Internal sensation: pH, osmolarity
Semicircular canals: head movement Electroreceptors: electric and magnetic fields
Utricle/saccule: gravity  

S&G Table 10.1

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