Ap Psych Temporal Lobe and Inner Ear

Topics: Auditory system, Ear, Inner ear Pages: 2 (281 words) Published: May 15, 2013
Temporal Lobe

Where Is It?
* Lies roughly above the ears
What does it do?
* It helps in the processes of perception, face recognition, and object recognition. When damaged?
* The Right side Temporal Lobe is involved with visual abilities. * Agnosia- The inability to remember faces.
* Prosopagnosia- The inability to remember objects.
How does it work?
* The eyes send info to the occipital lobes
* Ventral stream sends it to the middle and inferior temporal gyri * It is then Identified
* This is how you know what something is

The Inner Ear

The ear – The human ear converts sound waves into neural activity through an intricate mechanical chain reaction. The inner ear –
* The innermost part of the ear
* the cochlea
* semicircular canals
* vestibular sacs.
Perception - Hearing is detecting vibrations in the environment and decoding them into neural signals. * Actual Hearing is perception
How does the Inner Ear work?
* Vibrations from the middle ear that are received through an outside stimulus are amplified by the bones in it, the hammer, anvil, and stirrup. * The vibrations then enter the cochlea through the oval window, located at the beginning of the fluid - filled cochlea. * The resulting pressure from the vibrations on the cochlea cause the basilar membrane to ripple, bending the hair cells on the surface. * The highly responsive hairs on the basilar movement then trigger impulses on the auditory nerve, which in return sends impulses to the temporal lobes auditory cortex in the brain.

Hearing loss
* Damaged hair cells represent most of all hear loss
* They are very sensitive and fragile, so loud music and noises can wither them down easily, resulting in hearing loss * Almost all deaf people have to learn sign language to communicate.
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