PSYC 212 Chapter Notes - Chapter 3: Mechanical Filter, Deep Sea, Proprioception
13 Jul 2014
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Document Summary
The somatosensory system: touch, feeling and pain: touch sensations produced by stimulation of receptors in the skin. Where was i touched? of the object: subjective feeling of touch that allows for the classification and identification. Proprioception perceptions of body position and movement arising from sensory signals generated by muscle contraction and joint movement. Each receptor produces particular touch sensation + indicates where on the skin surface stimulation occurred. Max von frey also proposed specific receptors for heat, cold, pressure, pain: pattern theory specificity of touch sensations arises form overall pattern of activity across broad spectrum of receptors. Different types of touch generate different patterns of activity. Brain is able to distinguish these patterns to produce different touch perceptions: mechanoreceptors sensory receptors found in the skin that transduce touch signals. Function ideally for kinds of mechanical stimulation captured by the particular receptor. Pacinian mechanical filter aiding transmission of vibrational stimuli. Meissner designed for transmitting light touch +
