SENSATION AND PERCEPTION
HEARING
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Intensity
|
|
|
Frequency
|
|
|
Acoustical Transduction
|
|
|
Place Theory
|
Detailed explanation-1: -SOUND WAVES enter the ear canal and cause the eardrum to vibrate. VIBRATIONS pass through 3 connected bones in the middle ear. This motion SETS FLUID MOVING in the inner ear. Moving fluid bends thousands of delicate hair-like cells which convert the vibrations into NERVE IMPULSES.
Detailed explanation-2: -Transduction, the conversion of sound to an equivalent electrical waveform, occurs in the mechanoreceptive hair cells anchored in the organ of Corti. The proximate mechanical stimulus is deflection of the hair bundles against the overlying acellular tectorial membrane.
Detailed explanation-3: -Vibrating objects, such as vocal cords, create sound waves or pressure waves in the air. When these pressure waves reach the ear, the ear transduces this mechanical stimulus (pressure wave) into a nerve impulse (electrical signal) that the brain perceives as sound.
Detailed explanation-4: -Within the cochlear duct is the organ that converts mechanical vibrations to electrical action potentials.