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.
* 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.