Ch. 6: Learning Flashcards
Modeling definition
Imitating a behavior seen in others
Vicarious learning definition
Learning to engage in a behavior or not after seeing others being rewarded or punished for engaging in it.
Definition of learning
A relatively enduring change in behavior resulting from experience.
Non-associative learning
The simplest form of learning; occurs after repeated exposure to a single stimulus or event. For example, people who live near airports become accustomed to the sound of airplanes flying overhead, meanwhile the same sound may cause alarm or at least be very noticeable for someone who has not learned to ignore it. There are two types: habitual and sensitization. Both subforms of this learning are consequences of alterations of the levels of neurotransmitter released by the presynaptic neuron; less neurotransmitter release is habituation, and more is sensitization.
Associative learning
The linking of two events that –in general– take place one after the other. Associations happen through conditioning.
Observational learning
Acquiring or changing behavior after exposure to another individual performing that behavior.
Habituation learning
Subform of non-associative learning. If something is neither beneficial or harmful, habituation leads us to ignore it. Note: we can still perceive the stimuli, we just don’t react to them because you have learned that they are not important. Similarly, the stopping of a stimuli you have become habituated to becomes notable, which is called dishabituation. All animals have habituation and dishabituation.
Sensitization (learning)
Subform of non-associative learning. Is an increase in behavioral response (to be contrasted with habituation which is a decrease) after exposure to a stimulus. The stimuli that most often lead to sensitization are those that are threatening or painful.
Classical/Pavlovian conditioning
A neutral stimulus is conditioned to produce a response because it is associated (through conditioning) with a stimulus that already produces that response. It is a way that animals came to predict the occurrence of events. For this reason, learning happens much easier if the conditioned stimulus comes before the unconditioned stimulus, rather than after.
Neutral stimulus in Classical conditioning
Anything that is not normally associated with the natural stimulus.
Acquisition and contiguity
The formation of an association between a conditioned stimulus and an unconditioned stimulus. The critical element in the acquisition of a learned association is that stimuli occur together in time, which is known as contiguity. Specifically, research has shown that classical conditioning is most effective when the conditioned stimulus comes right before the unconditioned stimulus during conditioning.
Second order conditioning
Being conditioned to have the same response to a second stimulus as an original unconditioned stimulus as well as the original conditioned stimulus, through conditioning with the conditioned stimulus.
Stimulus generalization
Stimuli that are similar to a specific conditioned stimulus evoke a response that varies in proportion to how close the subsequent stimulus is with the original conditioned stimulus.
Stimulus discrimination
Animals learn to differentiate between two similar stimuli if one is consistently associated with the unconditioned stimulus and the other is not.
Extinction
Conditioned stimuli die off over time if they do not come in conjunction with the unconditioned stimuli. This is a form of learning rather than unlearning, in that the animal learns that the conditioned stimuli no longer applies.
Spontaneous recovery
Some time after the extinction of a conditioned stimulus, if the conditioned stimulus is once again randomly applied, the animal will respond to it with the unconditioned response, albeit with reduced intensity. This happens because extinction is a form of learning that happens on top of the original conditioned stimulus and so does not extinguish it.
T/F: all stimuli are equally likely to become associated with an unconditioned response.
False. Some pairings of stimuli are more likely to become associated than others.
Conditioned taste aversion
Becoming ill after eating something, even if the illness is truly completely unrelated in cause from the food, can cause the person to form a distaste for the food in the future. It is especially likely to occur with a novel taste. Conditioned taste aversions are very easy to produce with food, but very difficult to produce with light or sound. This implies that the value of a response is linked to the evolutionary experience of that species.
Biological preparedness
The theory that some animals are genetically programmed to fear specific objects (like monkeys fearing snakes).
The Roscorla-Wagner model
Predicts that animals learn that some predictors (ie. CS) are more predictive than others. This implies that learning is proportional to the extent that the US’s appearance is unexpected or surprising