Chp 7.1: Pavlovian Conditioning 1 Flashcards
learning
a relatively enduring change in an organism’s behaviour or performance capabilities that occurs as a result of experience
capabilities
a distinction made by many theorists: “knowing how,” or learning, versus “doing,” or performance.
What do behaviourists do?
behaviourists focused on how organisms learn, examining the processes by which experience influences behaviour.
habituation
a decrease in the strength of response to a repeated stimulus
Sensory adaptation vs habituation
- Sensory adaptation refers to a decreased sensitivity to a continuously present stimulus.
- Habituation, on the other hand, is a simple form of learning that occurs within the central nervous system.
- You may habituate to a stimulus, but that sensory information is still available if it becomes relevant.
sensitization
an increase in the strength of response to a repeated stimulus
classical conditioning (Pavlovian)
a procedure in which a formerly neutral stimulus (the conditioned stimulus) comes to elicit a conditioned response by virtue of being paired with an unconditioned stimulus that naturally elicits a similar response (the unconditioned response) when two stimuli become associated with each other.
For example, seeing a dog and being bitten become associated such that one stimulus (seeing a dog) now triggers a new response (fear).
Acquisition
the period during which a response is being learned
Acquisition is Classical conditioning
CS typically must be paired multiple times with a UCS to establish a strong CR
unconditioned stimulus (UCS)
a stimulus that elicits a particular reflexive or innate response (the UCR) without prior learning
Eg. If we place food in the dog’s mouth, the dog will salivate, food is the UCS
unconditioned response (UCR)
a response (usually reflexive or innate) that is elicited by a specific stimulus (the UCS) without prior learning
Eg. If we place food in the dog’s mouth, the dog will salivate, salivation is the UCR
conditioned stimulus (CS)
a neutral stimulus that comes to evoke a conditioned response after being paired with an unconditioned stimulus
(Tone of the food to dog)
conditioned response (CR)
in classical conditioning, a response to a conditioned stimulus; the CR is
established by pairing a conditioned stimulus with an unconditioned stimulus that evokes a similar response
(Salivation as a result of conditioning)
Under what circumstances are CRs typically acquired most quickly?
Learning usually occurs most quickly with forward short-delay pairing: The CS (tone) appears first and is still present when the UCS (food) appears.
Name some pairing arrangements (4)
- Forward short-delay pairing (effective)
- Forward trace pairing
- Simultaneous (not really effective shown by CS alone test)
- Backward pairing (not effective)
extinction (classical conditioning)
weakening and eventual cessation of a CR caused by the presentation of the CS without the UCS
learning trial
Pairing of CS to UCS
extinction trial
each presentation of the CS without the UCS
spontaneous recovery
in classical conditioning, the reappearance of a previously extinguished conditioned response after a period of time has passed following extinction