PSYCH 202 Lecture Notes - Lecture 35: Neural Coding, Basilar Membrane, The Left Ear
Document Summary
If we recognize it or not: where it came from, what it means, how loud it is. Sensation: when we detect something in our environment. Sound: pressure wave of molecules (in air, usually, movement of molecules. When we hear a sound, we"re detecting the change in the movement of molecules. Sound wave properties: wavelength and amplitude, amplitude = loudness, higher amplitude = louder sounds, wavelength = cycles/second, frequency, high frequency = high pitch, low frequency = low pitch. Transduction: translation of the energy of the world into neural signals, occurs in all of our sensory systems, how do our bodies translate molecule movement into (specific neural signals), hair cells! Inner ear: semicircular canals, helps us figure out balance, cochlea. Fluid in the cochlea begins moving due to oval window"s movement. Fluid in inner ear moving -> basilar membrane begins moving.
