What are the two theories of color perception?
There are two major theories that explain and guide research on colour vision: the trichromatic theory also known as the Young-Helmholtz theory, and the opponent-process theory. These two theories are complementary and explain processes that operate at different levels of the visual system.
What is the difference between place theory and frequency theory of hearing?
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 is the problem with the frequency theory?
The major flaw in frequency theory is that the neurons fire at a maximum of about 1,000 impulses per second, so frequency theory would not account for sounds above 1,000 hertz. This means that Martin would not be able to hear the high notes of his favorite song!
What is the frequency theory?
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 is the problem with Place Theory?
A problem with the place theory is that the resonance curves turn out to be very broad and they overlap, as shown in the graph below (compare with the resonance graph of amplitude versus frequency in Chapter 4). In other words the sections of the cochlea are low Q-factor resonators.
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.
What is pitch in psychology?
n. the subjective attribute that permits sounds to be ordered on a musical scale. The primary theories concerning the basis for pitch perception are the place theory and the periodicity theory.
What is the correct path of sound through the ear to the brain?
The ossicles amplify the sound. They send the sound waves to the inner ear and into the fluid-filled hearing organ (cochlea). Once the sound waves reach the inner ear, they are converted into electrical impulses. The auditory nerve sends these impulses to the brain.
Which theory of hearing applies to sounds above 1000 Hz?
Volley theory
What are the 4 tasks of the auditory system?
What are the four tasks of the auditory system? – Pick up stimulus energy from the world around us. – Change that energy into a pattern of neural impulses. – Carry those impulses to the proper locations in the brain.
Which theory explains how we hear sounds above 4 000 Hz?
Chapter 3
| Question | Answer |
|---|---|
| The eardrum is also called the _______ | tympanic membrane |
| The _______ theory best explains how we hear sounds above 4000 Hz. | Place |
| If the bones of the middle ear begin to deteriorate, you will develop _______ hearing impairment. | Conduction |
| The sensation of smell | Olfaction |
What are the 4 distinct skin senses that make up touch?
The sense of touch is a mix of four distinct skin senses—pressure, warmth, cold, and pain. Only pressure has identifiable receptors. All other skin sensations are variations of pressure, warmth, cold and pain.
What are the 4 basic skin sensations?
The thousands of nerve endings in the skin respond to four basic sensations — pressure, hot, cold, and pain — but only the sensation of pressure has its own specialized receptors.