Basic Vocabulary - Classical Conditioning
These are some basic words that you need to familiarize yourself with in order to better grasp the materials presented in the section on classical conditioning and in the lecture. These definitions are pulled from various sources in hopes that they will aid in your enlightenment with this material. Please notice that there are multiple definitions for each word. These are provided in hopes that they will help expand your understanding. One definition may help clarify the next! Good luck!
Classical conditioning = Pavlovian Conditioning - this is because it was stumbled upon by Ivan Pavlov, a Russian physiologist studying the role of saliva in digestion in dogs. Ain't serendipity grand?
Unconditioned Stimulus (UCS)
- is a stimulus that evokes an unconditioned response without previous conditioning
- a stimulus that elicits a reflexive response in the absence of learning
- a stimulus in classical conditioning that elicits an unlearned response
Unconditioned Response (UCR)
- an unlearned reaction to an unconditioned stimulus that occurs without previous conditioning
- reflexive response elicited by a stimulus in the absence of learning
- an unlearned response to a stimulus
Conditioned Stimulus (CS)
- A previously neutral stimulus that has, through conditioning, acquired the capacity to evoke a conditioned response
- An initially neutral stimulus that comes to elicit a conditioned response after being associated with an UCS
- The previously neutral stimulus that is associated with the UCS
Conditioned Response (CR)
- A learned reaction to a conditioned stimulus that occurs because of previous conditioning
- A response that is elicited by a CS; it occurs after the CS is associated with the UCS
- The response that is elicited by the CS
Elicited
Acquisition
- Refers to the initial stage of learning something
- The process of learning a new response
Extinction
- The gradual weakening and disappearance of a conditioned response tendency
- The weakening & eventual disappearance of a learned response; in classical conditioning, it occurs when the CS is no longer paired with the UCS
- What happens when a CS loses its ability to elicit a CR
Spontaneous Recovery
- The reappearance of an extinguished response after a period of non-exposure to the conditioned stimulus
- The reappearance of a learned response after its apparent extinction
- When time has passed after extinction - & the CS is presented once more - the CR may reappear
Stimulus Discrimination
- Occurs when an organism that has learned a response to a specific stimulus does not respond in the same way to new stimuli that are similar to the original stimulus
- The tendency to respond differently to two or more similar stimuli; in classical conditioning, it occurs when a stimulus similar to the CS fails to evoke the CR
- The process of differentiating between similar stimuli
Stimulus Generalization
- Occurs when an organism that has learned a response to a specific stimulus responds in the same way to new stimuli that are similar to the original stimulus
- After conditioning, the tendency to respond to a stimulus that resembles one involves in the original conditioning; in classical conditioning, it occurs when a stimulus that resembles the CS elicits the CR
- Learning a response to one particular stimulus that is shown to other, similar stimuli
Higher Order Conditioning
- In classical conditioning, a procedure in which a neutral stimulus becomes a conditioned stimulus through association with an already established conditioned stimulus.
- A CS functions as if it were an unconditioned stimulus
Please keep in mind that these definitions are provided to you in addition to the ones that you will find in your textbook. These extra definitions are provided in hopes that multiple phrasings of the same material will help you better understand this material. J
And, as always, please remember that all materials presented here are purely supplemental in nature. They are not intended to supercede or substitute for the information presented in lecture & in the textbook! Thanks again & enjoy.