The place theory of pitch perception suggests that different portions of the basilar membrane are sensitive to sounds of different frequencies . More specifically, the base of the basilar membrane responds best to high frequencies and the tip of the basilar membrane responds best to low frequencies.
Which of the following theories explains pitch perception?
we hear different pitches because different sound waves cause different parts of the nerve cells in the cochlea to fire. ... the frequency theory is the most comprehensive in explaining pitch perception.
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.
Who suggested the place theory of pitch?
A theory of pitch perception first proposed in 1865 by the German physiologist, physicist, and mathematician Hermann Ludwig Ferdinand von Helmholtz (1821–94) according to which the perceived pitch of a tone depends on the position or place on the basilar membrane of the auditory receptors that transmit nerve impulses.
How is pitch coded in place theory?
According to the place theory of hearing, we can hear different pitches due to specific sound frequencies causing vibrations in specific parts on the basilar membrane of the cochlea. ... The brain detects the pitch based on the position of the hair cells that transmitted the neural signal.
What are the two theories of pitch perception?
Two theories explain how people distinguish the pitch of different sounds: place theory and frequency theory .
What are the 2 theories of pitch detection?
Several theories have been proposed to account for pitch perception. We’ll discuss two of them here: temporal theory and place theory . The temporal theory of pitch perception asserts that frequency is coded by the activity level of a sensory neuron.
Why is pitch perception important?
Pitch is important for speech and music perception , and may also play a crucial role in our ability to segregate sounds that arrive from different sources.
What are the principles of pitch perception?
Place and Temporal Code Theories of Pitch Perception. Pitch is a perceptual attribute, not a property of the physical stimulus. In a loose and imprecise way, the pitch we perceive is related to the frequency of the sound. Place Code Theory: Helmholtz’s theory of pitch is based on observations of the anatomy of the ear .
What is the difference between frequency and place theories of pitch?
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.
Who first proposed place theory?
The place theory is usually attributed to Hermann Helmholtz , though it was widely believed much earlier.
How does the brain determine pitch?
The vibrations are detected by the cilia (hair cells) and sent via the auditory nerve to the auditory cortex. There are two theories as to how we perceive pitch: The frequency theory of hearing suggests that as a sound wave’s pitch changes, nerve impulses of a corresponding frequency enter the auditory nerve.
What is the difference between the temporal theory and the place theory 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.
How do we discriminate pitch?
In the context of pitch discrimination, a thresholding procedure involves manipulating the pitch interval between paired stimuli to determine the minimum interval (i.e. least amount of difference in pitch) for which a participant can reliably detect the presence of a difference in pitch between the paired tones.
What is frequency theory?
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.
What is pitch discrimination?
Pitch discrimination is an aspect of pitch perception . The note A above middle C played on a piano is perceived to be of the same pitch as a pure tone of 440 Hz. ... Like other human stimuli, the perception of pitch also can be explained by the Weber-Fechner law.
