PSB-2000 Lecture Notes - Lecture 6: Ventral Posterior Nucleus, Entorhinal Cortex, Hyposmia
13 Oct 2017
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Document Summary
Is the higher-order process of integrating, recognizing, and interpreting. Physical energy from the environment into electrochemical signals in the neuron. Are specialized cells in peripheral tissues of your body. Natural sounds are complex patterns of vibrations. The rang for human hearing is ~ 20-20,0000hertz. Damage: complete hearing loss usually temporary and recovers within weeks (lesion studies) Secondary areas do not respond to pure tones" and have not been well researched. Thermoreceptors: warm fibers respond to heat and capsaicin, cold fibers to cold and. Nociceptors: activation of nociceptors triggers aspects of immune response. Phantom limb: sensation perceived from a physically amputated limb of the body. Rubber hand illusion: the temperature of a real hand decreases significantly. The anxiety regions of the brain activate when fake hand is threatened. Receptive fields can vary in size and sensitivity across the body. There exist no obvious cortical representation of pain.
