learning, memory, and behaviour Flashcards
What is non-associated learning?
when an individual learns something by being repeatedly exposed to a stimulus
what are the two types of non-associative learning? explain them.
Habituation –> the ability to tune out stimulus such as tuning out a loud noise after a given period of time.
Sensitization –> in contrast, their is an increase in response after the first few stimuli. the following stimuli will produce a more exaggerated response then normal (sort of like priming you to tick off)
e.g. at a rock concert the noise of the speakers get louder and more uncomfortable. The next day if you hear sirens you may actually respond more to them because you are sensitized
explain dis-habituation and desensitization
dishabituation is the process of loosing your habituated stimuli. If you go on vacation and then come home to a train noise you will notice it more.
Desensitization is the process of loosing your priming to a stimulus. You will stop having an exaggerated response to the stimuli
What is associative learning?
learning process in which you may associate an event, action, or object directly to each other
explain Classical conditioning. Explain the example
a process in which two stimuli are paired in such a way that one stimuli effects the other stimuli’s response.
ivan pavlov made dogs associate the sound of a bell with the sight of food.
Explain neutral stimulus, unconditioned stimulus (US), unconditioned response (UR), conditioned stimulus (CS), conditioned response (CR)
neutral stimuli –> does not elicit a response normally (bell sound)
US –> biological to the dog: the sight of food
UR –> biological to the dog: salivation
CS –> pair the neutral stimulus with the US
CR –> dog associates the bell with food therefore the bell makes it salivate
what are the 5 stages of classical conditioning, briefly explain each (first one is acquisition)
- Acquisition –> learning the CR
- Extinction –> after some time when the neutral stimuli and US are not paired, the CR will randomly disappear (e.g. the bell produces no salivation)
- Spontaneous recovery: randomly the bell produces salivation (CR recovered)
- Generalization: the individual associates similar stimuli with the CR. (door bell makes dog salivate)
- Discrimination: opposite in which individual can isolate the single stimulus with the CR
what is an example of a classical conditioning phenomena where the acquisition phase is short and extinction is almost eternal.
Taste - aversion: if you taste or smell something that gives you nausea or makes you feel poorly, you will associate that feeling with that taste immediately.
what two actions facilitate operant conditioning
punishment and reinforcement to mold behaviour
Who discovered operant conditioning?
B.F. skinner worked on rats
explain +/- reinforcement.
(+) –> you add something pleasurable upon appropriate behaviour
(-) –> you take way undesirable stimuli upon appropriate behaviour
think positive you add, negative you take away
what is the difference between primary and secondary reinforcers?
primary (unconditioned) reinforcer –> innately satisfying, i.e. we do not need to learn that they are pleasurable (food)
secondary (conditioned) –> we learn that they are desirable. A neutral stimuli is paired to a primary reinforcer. (e.g. if you read a book you get a stamp. after 5 stamps you get a pizza)
explain the difference in continuous reinforcement with intermittent
Continuous –> (reinforcement after every good behaviour) produce fast acquisition but fast extinction
intermittent –> slow A, Slow E
4 intermittent schedules: explain fixed-ratio
Reinforcement occurs after a set number of instances of good B. Once learned this leads to a high rate o response
4 intermittent schedules: explain Variable-ratio
reinforcement occurs at random number of instances of good B. Like gambling! This too creates a high response rate in the hope that reward is coming
4 intermittent schedules: explain Fixed-interval
reward comes after a given amount of time: produces workers who only respond more towards the end of the time cycle
4 intermittent schedules: explain Variable interval
reward after random amount of time: produces slow but steady workers
what is the best way to teach a new behaviour? What is he best way to ensure slowest extinction of a behaviour?
best way to teach at the start is by continuous reinforcement which can transition into other forms once they understand the behaviour
best way for slowest extinction: variable ratio (think gambling is an addiction - stays for life)
explain positive and negative punishment.
positive –> you add something undesirable such as pain upon poor behaviour
negative –> you take away something desirable “”
explain escape and avoidance: are they operant or classical conditioning?
they are both operant conditioning
In escape: individual learns how to escape an aversive stimulus (i.e. punishment) by engaging in a particular behaviour. For example if a baby screams b/c they dont want veggies and it works, they will do it again.
In avoidance: individual performs a behaviour prior to a stimulus to avoid that stimulus. This would be pretending your stomach hurts prior to being served gross food.
explain insight learning.
when an individual combines two separately learned behaviours to accomplish something
explain latent learning.
something is learned but never expressed. in contrast, in insight learning, typically both behaviours were learned through some associative mechanism in which the individual has practiced the method.
in latent learning the learned behaviour is never expressed but upon needing it, it manifests quickly
what is consolidation?
the process of a short-term memory being turned into a long term memory
What is long-term potentiation?
following brief periods of stimulus, an increase in synaptic strength between involved neurons leads to stronger electrochemical responses.
long term potentiation makes the neurons more sensitive to firing then before.
synaptic strength is thought to be the mechanism by which short term memories are consolidated
What is observational learning?
observational learning is learning through watching and imitating
what is social learning? what is vicarious learning?
vicarious and social learning are alternative names for observational learning
explain social modelling.
modelling is the most basic mechanism of vicarious learning. In this process an individual watches someone else do something, and then later, with that model in their mind, tries to imitate it.
this is how lions learn to hunt
t or f, modelling only occurs when the observed behaviour proves to be successful.
false!! modelling can occur even when the observed individual fails in the eyes of the observer
who is Albert Bandura?
Albert Bandura did an experiment on modelling by making a bunch of kids watch different videos of an adult and a play doll. In every situation the kids mimicked the adult.
what are mirror neurons?
these are neurons that fire when you perform a task and when you observe another person perform that task.
what is vicarious emotion?
vicarious emotion is emotion felt through the feelings of somebody else. the best example of this is empathy. It is thought that mirror neurons are responsible for this.
What is reciprocal determinism?
the concept that people shape the environment and environment shapes people.
i.e. person/environment interaction
what is behavioural genetics?
determining how genes effect our behaviour
essentially, heredity + experience molds behaviour. We can study both.
This study helps us determine nature vs. nurture (i.e. heredity vs. environment)