Psychology 2015A/B Study Guide - Midterm Guide: Auditory Masking, Musical Tone, Sensorineural Hearing Loss

• School: Western University
• Department: Psychology
• Course: Psychology 2015A/B
• Professor: Patrick Brown

Document Summary

Physical stimulus neural response sound percept. Physical: sound is a moving pressure wave in air or any other medium, amplitude, Wavelength, frequency, pure tones and complex tones, amplitude and energy. Physically, sound consists of waves in the air. To understand what is waving it"s necessary to understand air pressure. Perceptual: sound is the experience we have when we hear. Sound consists of waves of changes in air pressure the change in pressure is moving through space. About one-tenth of the diameter of an average air molecule. How do loud speakers produce sound: condensation: the diaphragm of the speaker moves out, pushing air molecules together, rarefaction: the diaphragm also moves in, pulling the air molecules apart. Periodic sounds: pure tones are periodic tones their waveform has a repeating pattern, some complex tones are also periodic. Aperiodic sounds, which do have repeating sounds waves, are also widely heard in our environment, but have not been investigated as extensively as periodic sounds.