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)