PSYC 100 Lecture Notes - Lecture 13: Cochlea, Stirrup, Mnemonic
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As we age, our sensory perception becomes less acute. Recent studies have found that an impaired sense of smell is associated with an increased risk of mental decline and of alzheimer"s disease. Haptic sense: sensation of temperature, pressure, pain and a sense of where our limbs are in space. We really have 8 senses because of the haptic sense"s 4 parts (hot, cold, pressure and pain) that are encountered separately. Anything that makes contact with our skin provides tactile stimulation which gives rise to an integrated experience of touch. Their long axons enter the cns by way of spinal nerves. For sensing temperature, there are separate receptors for sensing cold and hot, although both can be triggered at the same time by intense stimuli which can produce strange sensory experiences such as a false feeling of wetness. Other pressure receptors are capsules in the skin that respond to continued vibration, to sudden movements, and to steady pressure.