Exam 2 Review (Ch.3-5) Flashcards
What happens to fluid that moves and vibrates in the inner ear?
Vibrations in the fluids of the inner ear press against the basilar membrane which triggers the hair cells in the organ of corti, their movements generate neural impulses that are transmitted to the brain via the auditory nerve which will translate it into auditory input that is then projected onto the hearing areas of the temporal lobes of the cerebral cortex
What is the ear drum and what is its function?
It is a thin membrane that vibrates in response to sound waves, and thereby transmits them to the middle and inner parts of the ear.
What specific kind of cells form the structure of the retina?
Photoreceptors
Define photoreceptors
Cells that respond to light
What are the 2 types of photoreceptors?
Rods and cones
Define visual perception
The process by which we organize or make sense of the sensory impressions caused by light that strikes the eyes
What is meant by the term binocular cues?
Defined as stimuli suggestive of depth that involve simultaneous perception by both eyes. – they are cues that involve both eyes and aid din the perception of depth
What is the opponent-process theory?
The theory that color vision is made possible by three types of cones, some of which respond to red or green light, some to blue or yellow, and some to the intensity of light
What causes sensorineural deafness and how does effect a person’s receptiveness to pitch?
Sensorineural deafness can stem from damage/loss of hair cells of the inner car or from damage to the auditory nerve, caused by things like disease or exposure to loud sounds. People with this form of deafness tend to be more receptive/sensitive to some pitches more than others.
What is a fovea?
The small spot at the center of the retina that consists of densely packed cones (which it is almost exclusively composed of) and where vision is consequently most acute.
What is dark adaptation?
The process of adjusting to lower lighting, it is caused by increasing the sensitivity of rods and cones
What happens to the transmission of pain messages?
The pain message to the brain is facilitated by the release of chemicals such as prostaglandins, bradykinin, and pain. Prostaglandins then facilitate transmission of the pain message to the brain and hightens circulation to the injured area, causing redness, swellings and what we know as inflammation that attracts infection fighting blood cells to the injury to protect it from germs/ infection.
What is a trichromat?
A person with normal color vision; they are sensitive to red-green, blue- yellow, and light and dark.
Name the structure in the ear where vibrations from the oval window go to
The oval window transmits vibrations into the inner ear, and then to the bony tube called the cochlea.
What does the term extrasensory perception mean?
The perception of objects or events through means other than the recognized sensory organs
What does the frequency theory point out?
The theory that the pitch of a sound is reflected in the frequency of the neural impulses that are generated in response to the sound – notes that for us to perceive lower pitches, we need to match the frequency of the sound waves with our neural impulses.
Define continuity
The tendency to perceive a series of points or lines as having Unity
What is Weber’s constant?
The fraction of the intensity by which a source of physical energy must be increased or decreased so that a difference in intensity will be perceived.
Define clairvoyance
The perception of objects that do not stimulate the known sensory organs
What are two items connected with extrasensory perception? define them please
Two items connected with ESP are telepathy and clairvoyance and ESP is also referred to as paraspsychological ( means along side psychology and refers to transfer of information through an irregular or unusual process) or psiphenomena ( refers to the perception of objects or events through mans other them the known sensing organs.)