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PSY120 exam 2
psy120 exam 2
64
Psychology
Undergraduate 1
03/05/2010

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Term
What is Circadian Rhythm?
Definition
Regular fluctuation from high to low points of certain bodily functions or behaviors.
Term
How many stages are in the Non-REM sleep cycle?
Definition
Four
Term
What kind of waves occur during stages 3 and 4 of Non-REM sleep?
Definition
Delta waves
Term
What are two names for REM sleep?
Definition
"active sleep" or "paradoxical sleep"
Term
What percentage of the night are you in REM sleep?
Definition
REM sleep is 20-25% of a night's sleep.
Term
What is the Freudian Interpretation of dreams?
Definition
Freud believed dreams satisfy unconscious sexual and aggressive desires and so must be disguised.
Term
What is the Problem-focused interpretation of dreams?
Definition
Dreams are an expression of current ongoing concerns and can resolve or clarify current problems.

"Relate images in dreams to things in your working life."
Term
What is the Activation-Synthesis Hypothesis interpretation of dreams?
Definition
Dreams are the brain's attempt to make sense of the random firing of brain cells during sleep.
Term
What is Narcolepsy?
Definition
-incurable sleep disorder disorder
- characterized by excessive daytime sleepiness and uncontrolable attacks of REM sleep.
Term
What is sleep apnea?
Definition
-periods during sleep when breathing stops.
-the individual must awaken briefly in order to breath.
Term
What is insomnia?
Definition
-difficulty falling asleep.
-waking too early.
-sleep that is light, restless, or of poor quality.
Term
What is the definition of a stimulant and what are a few examples?
Definition
-a drug that speeds up the central nervous system.
-ex) caffeine, meth, cocaine.
Term
What is the definition of a depressant and what are a couple examples?
Definition
-a drug that slows down the Central Nervous System.
-ex) alcohol, valium, xanax.
Term
What is the definition of an Opiate and what are a few examples?
Definition
-an opiate is a pain reliever.
-ex) opium, heroin, methadone
Term
What is the definition of a hallucinogen and what are a few examples?
Definition
-disrupt normal though process.
-ex) LCD, mushrooms
Term
What are some facts about Marijuana?
Definition
- does not neatly fit into any of the drug classes.
- Most commonly used illicit drug in North America and Europe.
Term
What is the definition of sensation?
Definition
Information coming into the brain.
Term
What is the definition of perception?
Definition
Organizing and interpreting the information in the brain.
Term
What is the absolute threshold?
Definition
The smallest magnitude of a stimulus that can be detected.
Term
What is the difference threshold?
Definition
The smallest detectable difference between two stimuli.
Term
What is sensory adaptation?
Definition
the PERCEIVED weakening of a sensation due to prolong exposure to the stimulus.
Term
What is the cornea?
Definition
Protective coating on the surface of the eye.
Term
What is the iris?
Definition
The colored part of the eye that regulates the amount of light that enters.
Term
What is the pupil?
Definition
The opening of the iris. (the black part)
Term
What is the lens?
Definition
The transparent portion of the eye that focuses light onto the retina.
Term
What is the retina?
Definition
images fall here, sensory receptors are here.
Term
What is the trichromatic theory of color vision?
Definition
There are three different kinds of cones in the eye and each respond to light in either red, blue, or green wavelengths therefore all sensations of colors result from stimulating a combination of these three cones.
Term
What is the Opponent-Process Theory of color vision?
Definition
In addition to the 3 types of cones in the trichromatic theory (red, blue, and green), there are "opponent process mechanisms" which respond to each of the cones.
Term
What are the 4 Gestalt Principles of Perceptual Organization?
Definition
1. Proximity
2. Closure
3. Similarity
4. Continuation
Term
What "Proximity" in the 4 Gesalt Principles of Perpetual Organization?
Definition
Proximity- things that are close together are grouped together in the mind as if they belong together.
Term
What is "Closure" in the 4 Gesalt Principles of Perpetual Organization
Definition
Closure- incomplete figures tend to be seen as complete because our brain fills in missing information.
Term
What is "Similarity" in the 4 Gesalt Principles of Perpetual Organization
Definition
Similarity- similar things are seen as being related in our brain.
Term
What is "Continuation" in the 4 Gesalt Principles of Perpetual Organization?
Definition
Continuation- images are seen in ways that produce smooth continuation.
Term
How does the pain-gate theory of pain work?
Definition
There are nueral gates (endorphins) that control the transmission of pain impulses. The gate can be open (slow pain messages are not blocked, therefore we experience pain) or close (slow pain messages are blocked, therefore we do not experience the pain).
Term
How does our sense of smell work?
Definition
Airborne molecules enter the nose and are transferred to "olfactory bulb" in the brain for processing.
Term
Where is smell processed in our brain?
Definition
Processed directly through the amygdala, hypothalamus, and hippocampus.
Term
What is an example of Classical Conditioning?
Definition
Pavlov and his dogs. The bell makes the dog salivate
Term
What is a Unconditioned Stimulus (UCS)?
Definition
Stimulus that can elicit an unlearned response. (an instructional stimulus)
Term
What is an unconditioned response (UCR)?
Definition
An unlearned reaction to the unconditional stimulus. (an instinctual or inborn reaction) *salivation
Term
What is a Conditioned Stimulus (CS)?
Definition
Stimulus that elicits a response as a result of being paired with an unconditioned stimulus. (a learned stimulus)
Term
What is a Conditioned Response (CR)?
Definition
Response that is similar or identical to the unconditioned response that is elicited by a conditioned stimulus. (a learned response)
Term
Classical Conditioning definition..
Definition
A form of learning in which a previously neutral stimulus (CS) is paired with an unconditioned stimulus (UCS) to elicit a conditioned response (CR) that is identical to or very similar to the unconditioned response (UCR).
Term
What are the four ways in which the consequences of our behavior can be influenced according to Operant Conditioning?
Definition
1. Positive Reinforcement
2. Negative Reinforcement
3. Positive Punishment
4. Negative Punishment
Term
What is Positive Reinforcement?
Definition
When the consequence of a behavior leads to an INCREASE in the probability that the behavior will occur again.
Term
What is Negative Reinforcement?
Definition
An increase in behavior (reinforcement) that occurs as a result of the removal or avoidance of a negative event.
Term
What is Positive Punishment?
Definition
Presenting/adding an bad stimulus to an action. Ex.) a child misbehaves and receives hitting and yelling from a parent.
Term
What is Negative Punishment?
Definition
Taking away/subtracting a good stimlulus. Ex.) a child misbehaves and a parent takes away their toys, games, ...ect..
Term
What is Shaping?
Definition
Rewarding a series of approximate behaviors until you get the behavior you want.
Term
What is Stimulus Discrimination?
Definition
Discriminating between appropriate and inappropriate occasions for a response. Ex.) learing to express sympathy when something sad as been told to us.
Term
What happens when Stimulus Generalization Occurs?
Definition
The tendency for similar stimuli to elicit the same response. Ex.) Little Albert was also afraid of white dogs and rabbits, not just mice.
Term
What is extinction?
Definition
The process of unlearning a response because the original source of learning has been removed from the environment.
Term
What was Albert Bandura's Bobo doll experiment and what were the results?
Definition
Children watched adults interact with a life-size Bobo doll. Children always did what the adults did. Ex.) adult beating up doll- children beat up the doll.
Term
What is the 3 Box Model of Memory?
Definition
The processing of memories goes through 3 areas:
1. Sensory memory/sensory stage
2. Short term/working memory
3. Long term memory
Term
What is the Sensory memory stage?
Definition
-very large capacity
-only brief material
- 1/2 seconds on visual
- 2 seconds on auditory
Term
What is the Short Term Memory stage?
Definition
- also called 'working memory'
- limited capacity
- limited time (info only stays here for no more than 30 seconds)
- if rehearsed, info can move from here to long term memory storage.
Term
What is procedural memory?
Definition
-memories of common physical procedures/muscle memory.
- mostly accessed w/o thinking
- highly robust to amnesia
Term
What is episodic memory?
Definition
-memory of things we have personally experienced
Term
What is Semantic memory?
Definition
-memory of general knowledge, facts, word meanings.
Term
Examples of different kinds of memories...
Definition
"I know how to play a guitar"= procedural
"I remember how to play guitar"=episodic
"I know what a guitar is" = semantic
Term
What were the results of Neisser's Challenger study?
Definition
Flashbulb memories change over time and are not as accurate.
Term
What were the results of Loftus car crash study?
Definition
people guessed the car at higher speeds with phrases like "collided with" and "smashed into" as opposed to just "contacted".
Term
What are of the brain is crucial to memory?
Definition
Hippocampus
Term
What is Anterograde amnesia?
Definition
- The inability to learn NEW memories.
- More common form.
Term
What is Retrograde amnesia?
Definition
- Inability to recall OLD memories.
- Less common form.
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