Midterm 2 Flashcards
What is behaviour modification?
implies the intentional or structured use of conditioning or learning procedures to modify behavior
What is habituation?
- prevents chronic stimuli from frightening an animal
- gets used to it
- can be distracting, aversive or neutral
- classical conditioning
What would cause an animal to have an emotional activation?
an unconditioned stimulus (like a loud bang)
What would cause an animal to have a weakened emotional activation?
an unconditioned stimulus with repetitive presentations
What would cause an animal to have no emotional activation?
an unconditioned stimulus with repetitive presentations
What is desensitization?
an intentional or structured habituation program (doesn’t cause stress)
What is flooding?
when the stimulus or stimuli are presented repetitively at full strength (marked distress then gives up) – can cause learned helplessness
What continues the process of habituation?
must be periodically exposed to the stimuli (requires maintenance)
What is systemic desensitization?
gradual habituation (slow exposure to the unhabituated fears)
- can be fears/phobias acquired by classical conditioning
What happened with Pavlov’s classical conditioning experiment?
dog had a tube it would salivate into – bell rang when person came in to feed it which caused salivation – thought it was a psychic or learned reflex but is CC
What is the moro reflex?
when a baby grabs at something – goes away with time
What is an unconditioned stimulus (US)?
naturally and involuntarily causes a response
ex. the food in pavlov’s experiment
What is an unconditioned response (UR)?
unlearned response to an unconditioned stimulus
ex. feeling of hunger in response to food
What is a conditioned stimulus (CS)?
a previously neutral stimulus that after becoming associated with the unconditioned stimulus eventually triggers a conditional response
ex. sound of bell makes dog salivate as it normally associated it with food
What is a conditioned response (CR)?
learned response to the previously neutral stimulus
ex. phobia of something – bad experience flying then gets anxious about getting on a plane
What are 2 other terms for classical conditioning?
- associative learning
- respondent conditioning
appetitive vs aversive
appetitive: positive response – satisfy needs
aversive: negative emotional reaction
acquisition vs extinction
acquisition: with repeated pairings of CS and US, CR becomes more reliable and grows in magnitude
extinction: If CS is presented without the US, then the CR becomes weaker in strength and occurs less reliably
***important that they’re paired every so often (charge the clicker)
CS + US = CR
What is a conditioned suppression?
a CS paired with an aversive US (ex. electric shock)
***fight, flight or freeze
- comparing the rates of behaviour with and without the presence of the conditioned aversive
What is an excitatory CS?
it more or less reliably predicts a US (effective in producing a CR)
What is an inhibitory CS?
CS that reliably predicts no US (predicts response opposite to the CR)
What is the spread of excitation or inhibition and its effect stimulus?
irradiation – generalization
What is discrimination learning (aka differentiation)?
when no US (food) is presented to a new stimulus (bell A) and the CS (bell B) is presented at other times with a US (food), then response the the new stimulus gradually fades
What are some examples of US’?
food, electric shock, puff of air to the eye, brain stimulation, loud noise, caffeine in a cup of coffee – EFFECTIVE if evokes a reasonably strong bodily response
***more intense it is, the easier it is to produce a CR (limits)