PSYCH 10 Lecture Notes - Lecture 15: Synesthesia, Thalamus, Nociceptor
Document Summary
Psych10: intro to psychology- lecture 15: the nonvisual senses. Outer ear: collects sound and funnels it to the eardrum. Middle ear: sound hits the eardrum and move the hammer, and stirrup in ways that amplify the vibrations. Inner ear: waves of fluid move from the oval window over the cochlea"s hair . Conduction hearing loss: when the middle ear isn"t conduction sound well to the cochlea. Sensorineural hearing loss: when the receptor cells aren"t sending messages through the auditory nerves. This causes a greater number of hair cells to send signals to the brain. Localization: sounds usually reach one ear sooner than the other. The brain uses this difference to generate a perception of the direction the sound was coming from. Four components of touch: pressure, warmth, cold, pain. Nociceptors: sensory receptors whose signals are interpreted by the brain as pain.
