Place theory states that the perception of pitch is associated with vibration of different portions of the basilar membrane
What are place theories of auditory frequency?
Place theory is a theory of hearing that states that our perception of sound depends on where each component frequency produces vibrations along the basilar membrane .
What is frequency theory of pitch?
Quick Reference. A theory of pitch perception first proposed in 1886 by the British physiologist William Rutherford (1839–99) according to which the ear converts acoustic vibrations into nerve impulses by emitting one impulse for each cycle of the sound wave in the manner of a telephone .
Which theory is correct place or frequency?
Place theory is accurate , except that receptive cells along the inner membrane lack independence in response. They vibrate together as suggested by the frequency theory. Sound waves travel along the membrane, peaking at a given region depending on the frequency.
What are the two theories of pitch?
Two rival theories have slugged it out over the years: ‘ place theory’ , in which pitch is determined by which neurons are active, and ‘temporal theory’, in which pitch is determined by how the neurons are active, specifically in terms of their temporal firing patterns.
What does frequency theory mean?
a late 19th-century theory specifying that pitch is coded by the rate at which action potentials are generated by auditory neurons within the basilar membrane of the ear .
Why is frequency theory important?
This is attributed to the frequency theory of hearing. The frequency theory of hearing states that the frequency of the auditory nerve’s impulses corresponds to the frequency of a tone , which allows us to detect its pitch.
How does pitch affect hearing?
Health Effects
The frequency or pitch can also have some effect, since high-pitched sounds are more damaging than low-pitched sounds. Noise may tire out the inner ear, causing temporary hearing loss. After a period of time away from the noise hearing may be restored.
Which theory of hearing explains how sounds up to 4000 hertz reach the brain?
How are higher and lower sounds detected? The frequency theoryof hearing states that as pitch rises, nerve impulses of the same frequency are fed into the auditory nerve. This explains how sounds up to about 4000 hertz reach the brain.
What do you call a sound waves with frequencies beyond 20000 Hz?
Frequencies above 20,000 Hz are known as ultrasound .
What is an example of place theory?
The place theory of hearing is used to explain how we distinguish high-pitched sounds that possess a frequency that exceeds 5,000 hertz . ... For example, a sound that measures 6,000 hertz would stimulate the spot along the basilar membrane that possesses a characteristic frequency of 6,000 hertz.
What is frequency and place theory?
Place theory states that the perception of pitch is associated with vibration of different portions of the basilar membrane , while the frequency theory states the perception of pitch is associated with the frequency at which the entire basilar membrane vibrates, 20.
What is place coding theory?
The place code theory is given that name because it identifies each pitch with a particular place along the basilar membrane . ... A low frequency tone causes slow waves of motion in the basilar membrane and that might give rise to low firing rates in the auditory nerve.
Which will you hear as the highest pitch?
For a person with normal hearing, when it comes to pitch the human hearing range starts low at about 20 Hz. That’s about the same as the lowest pedal on a pipe organ. On the other side of the human hearing range, the highest possible frequency heard without discomfort is 20,000Hz .
What is the characteristic frequency?
The frequency of a sound at which the threshold of a single fibre of an auditory nerve is lowest and to which it is therefore most responsive . See also tuning curve. CF abbrev. From: characteristic frequency in A Dictionary of Psychology »
What is the perception of pitch?
Pitch is an aspect of auditory perception and the perceived fundamental frequency of a sound . While the actual fundamental frequency can be precisely determined through physical measurement, it may differ from the perceived pitch because of overtones, or partials, in the sound.
