What is the volley principle simple definition?
the principle that individual fibers in an auditory nerve respond to one or another stimulus in a rapid succession of rhythmic sound stimuli, whereas other fibers in the nerve respond to the second, third, or nth stimulus.
What is the volley principle AP Psychology?
Volley Principle. The principle that relates the experience of pitch to the alternating firing of groups of neurons along the basilar membrane. Conduction Deafness. A form of deafness, usually involving damage to the middle ear, in which there is a loss of conduction of sound vibrations through the ear.
Why is the volley principle important?
Volley Principle: The volley principle reconciles the fact that the cochlear microphonic mimics the sound pressure waves with the implausibility of the temporal code. Wever suggested that while one neuron alone could not carry the temporal code for a 20,000 Hz tone, 20 neurons with staggered firing rates could.
What does place theory explain?
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 an example of the volley principle?
It has been seen that when being played a pure tone, auditory nerve fibers will fire at the same frequency as the tone. Volley theory suggests that groups of auditory neurons use phase-locking to represent subharmonic frequencies of one harmonic sound. This has been shown in guinea pig and cat models.
What is the volley principle quizlet?
The Volley Principle is an information encoding scheme used in human hearing. Nerve cells transmit information by generating brief electrical pulses called action potentials. Sound is encoded by producing an action potential for each cycle of the vibration, eg.
What is an example of place theory?
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. The brain detects the pitch based on the position of the hair cells that transmitted the neural signal.
What is difference between place theory and frequency theory of hearing?
The auditory nerve transfers these nerve impulses to the brain. Frequency theory of hearing can only account for sounds up to 5,000 hertz. The place theory of hearing accounts for sounds at or above 5,000 hertz.
Why was the volley principle developed?
In an effort to combat this fault, Ernest Wever and Charles Bray, in 1930, proposed the volley theory, claiming that multiple neurons could fire in a volley to later combine and equal the frequency of the original sound stimulus.
What is frequency theory in psychology?
The frequency theory of hearing proposes that whatever the pitch of a sound wave, nerve impulses of a corresponding frequency will be sent to the auditory nerve. For example, a tone measuring 600 hertz will be transduced into 600 nerve impulses a second.
What are the 2 theories of hearing?
Currently there are two overlapping theories of how we hear; the place theory of hearing and the temporal theory of hearing.
Is place theory high or low?
Most psychologists agree that hearing sound stimuli at low frequencies is accounted to the frequency theory, whereas those at high frequencies are attributed to the place principle.
What are the 5 key assumptions to the central place theory?
Christaller began his theory development with a set of assumptions: first, the surface of the ideal region would be flat and have no physical barriers; second, soil fertility would be the same everywhere; third, population and purchasing power would be evenly distributed; next, the region would have a uniform …
What does the place theory of pitch?
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.
What is the difference between place theory and frequency theory?
Who presented central place theory?
geographer Water Christaller
The first explicit statement of central place theory was made by German geographer Water Christaller and refined by German economist August Lösch. Although there are important differences between the models of Christaller and Lösch, they share a number of commonalities in terms of reasoning and underlying assumptions.
How is the central place theory used today?
Central Place Theory Today Often, small hamlets in rural areas do act as the central place for various small settlements because they are where people travel to buy their everyday goods.