Christine - psych - Flashcards
A build up in the pressure of the aqueous humor in the anterior chamber of the eye would most likely result in:
The aqueous humor is a liquid that bathes the front part of the eye before it draine into the canal of Schlemm. The ciliary muscle, part of the ciliary body is responsible for changing the shape of the lense via parasymphatic movements of the suspecsory ligaments. Accomodation is the name of the process when the shape of the lense is changed……Answer to question: a lack of focused vison due to deformation of the lense.
If tones varied in loudness and a subject is just a;ble to percieve the difference between a 42.5 and a 43,5 dzb soub, then what is the minimum volume a tone would need to have tobe just perceptible as louder than a 57.1 db sound?
Answer 58.1…… Webers law: the just noticable difference is a function of proportion. That is, is a 10 percent increase is noticable, then any proportional change of less than 10 percent is not noticable. Because dB is a log scale, each 1 db represetns the same proportional change in the sound intensity
What is singal detection theory?
Signal dection theory accounts for response bias, which is the tendency for people to be influeced by nonsensory information ( experiences, motives, expectation) when habitually responding to stimuli
What are parts of the eye where light enters?
Cornea( refracts light), sclera( white of eye), choroid( absorbing excess light with pigmented cells)–>anterior chamber ( in front of iris)–> iris( colored part with opeing called the pupil–> posterier chamber –> lens (refracts light more controlled by the ciliary muscle)–> retina( cones and rods)–. biipolar cells–> gangilan cells that make up the optic nerve–> occipital lobe
What cells are accociated with the retina? What are parts of the retina?
Cells associated–> amacrine and horizontal cells–> recieve input from retinal cells before any information is passed to the ganglion cells , important for edge detection…….Parts of the retina: Cones ( for color; Rods–> there are more of these, they are good for the dark; fovea ( all cones here))
What is the pathway of light?
Left visual field–> cross to the right side of the eye–> signal from photorecptors on the right side of the eye no matter what eye will go to the right side of the lateral gnicule body in the thalmus, this means that one optic tract crosses ( the nasal tract atand crosses at the optic chasm; the temporal fibers to not cross–> then the signal is passes to the occipital lobe
Where is the lateral geniculate nucleus located? Where is the medial genicalte nuclus located ?
The lateral geniculate nucleus is located in the occipital pathway and the medial geniculate nucleus is located in the auditory pathway.
Describe the structure of the ear. What does the frequency of the vibration determine? What does the amplitute of the vibration determine?
The Outer Ear: The Pinna or auricle that channels sound through the external auditory canal to the tympanic membrane ( eardrum); The FREQUENCY determines the rate of vibration and the higher amplitude determines how loud; The MIDDLE ear: three smallest bones: the ossicles–> the malleus, incus, stapes–> they connect to the choclea on the oval window in the The iNNEr eaR: protected by a thick bone called the bony labyrinth. The structures of the middle ear form the membrane labyrith which fills with endolymph ( potassium rich fluiD); there is another fluid around this called the perilymph whic htransmits virations from the stapes and protect the membranous labyrith; The cochela is divided into three setions : organ of corti( the hearing apparatous); hair cells of the organ of corti covert the physicial information into electrical signals which is transfered to the CNS; the vestribular, urile and saccule, are for balance and determine our orientation in space; The semicircular canal senses rotational accelateration; Onces the electrical signal reaches the brainstem it goes to the MGN of the thalmus, then the temporal lobe where the auditory cortex processes infor, the superior olive and inferior colliculus also helps with this
What is the Halo effect?
Halo effect is a cognitice bias in which judgement of an individual’s character can be affected by the overall impression of the indvidual
What are hallucinagins?
They raise ur heart rate, and dialate ur pupils. They include LSD, peyote, psilocybin, mescaline. They can also distort perception, enhance sensory experience and cause introspecttion
What is automatic processing?
It allows someone to multitake more effectively by letting them engage in one actin automaticall, ‘without thinking about it” while paying attention to the other action.
What is the resource model of attention?
The resource model of attention asserts that people can pay attention to mulitpe different stimuli if the brain has enough resources available
What is deductive reasoning? What is inductive reasoning?
Deductive reasing–> When given general rules and applying those general rules to figure out a particular situation; Inductive reasoning–> taking a number of specific situations ad crafting a general rule
What is Dysthmia? What is dissociative disorder? What it antisocial personality disorder?
Antisocial personality disorder –>, is a mental condition in which a person consistently shows no regard for right and wrong and ignores the rights and feelings of others.; Dysthmia is a form of mild depression and dissociative disorder is when two or more distinct identidies are present
What is anterograde amnesia? What is retrograde amnesia?
Antergrade–. problem forming new memories; retrograe- inability to recall memories from the past
What is the process of storing long term memory?
encoding, storage and retrival inculdeds the process of remembering; recieving, processing and combining is the process of storing long term memories
What is procedural memory?
involves basal ganglia. a part of the long-term memory that is responsible for knowing how to do things, also known as motor skills. As the name implies, procedural memory stores information on how to perform certain procedures, such as walking, talking and riding a bike
What psychologist is closely is related with the genetic basis of nerotosism n in terms of personality?
Eysenck
What is carl rogers associate dith
Self acuatualization is the goal of humanistic psychotheapy and is asociated with rodgers
What is the public declaration influencing behavior effect?
This is a way of explaining behavior that influences attitude. This refers to the effect of makign a public declaration and how this act demonstrates the power that behavior can have over our attitude. Declaring something publically can change a stance on something. For example, politicain declars his opinon against HFCS and continues to make statements again it and developes a stronger and stronger stance agaisnt it
What is validity? What is reliability? What is specificity? And what is Sensitivity?
Validity is accuracy or the right answer. Reliability is percision or the same answer. Sensitivity is the number of individuals that are correctly identified with having the disease or condition. ( true positive rate). Specificity measures the proportin of negatives that are correctled identided ( those not having_
Define the following: Cognitive dissonance, drvie reduction, the opponent- process theory and self determination
Congitive dissoance thoery; seeks to explain why justification is such a potent influence on attitudes; ppl seek considtency between attitudes, beliefs and behaviors; Drive reuction: Need –> drive__ action; opponent process theory__> accounds for the destructive motivations beahing drug abuse and addition. a certain drug taken repeativly then the body will attempt to counteract the chemical effect o that drug. For example if a person drinks to much there body increases arousal to counteract depressive effecs. this is why alcohol withdrawal causes jitters and anxiety; self determination: describes three general needs that must be met for a person to have ideal relationships with other ppl his environment and herself( Autonomy, competence, and relatedness( feel accepted by other ppl )
Define the following: Drive reductin theory, cognitive theory prejudice discrimination theory and aggregation theory
Drive reduction theory: need–> drive–> action, cognitive theory –> rediscrimintion ttheory– aggregation theory__ .
What is a secondary drive? What is a primay drive>
A secondary drive–> is learned from experience; primary is a bodies need ( hunger)