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Cognitive Psychology: Attention · Decision making · Learning · Judgement · Memory · Motivation · Perception · Reasoning · Thinking - Cognitive processes Cognition - Outline Index
In a discrimination learning task the organism is required to respond differentially to different stimuli
In the operant conditioning paradigm responses to one stimulus (S+) are reinforced and response to another stimulus (S-) are punished or ignored. This results in the emitting of the response in the presence of S+ but not with the presentation of S-
In a classical conditioning paradigm in the presence of one stimulus, the CS+ (conditioned stimulus) and US (unconditioned stimulus) are paired, but in the presence of another stimulus CS- they are not. Following successful discrimination learning the CR (conditioned response) occurs in the presence of CS+ but not with CS-.
A discriminative response is made by an organism when it chooses between the stimuli that it has learnt are different in order to obtain a reward.
In a typical example a rat will be trained to distinguish between different coloured lights and can then learn to earn a reward for always pressing the lever under the red one.
With discrimination evident in the response it is possible to explore the sensory acuity of animals and their difference thresholds.
See also[]
- Learning
- Drug discrimination
- Matching to sample
- Nonreversal shift learning
- Reversal shift learning
- Concept formation
- Differential reinforcement
- Discrimination
- Extinction (learning)
- Fading (conditioning)
- Gagné's hierarchy of learning
- Generalization (learning)
- Kinship recognition
- Stimulus control
- Stimulus discrimination
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