Zusammenfassung der Ressource
Chapter 6:
Learning
- Classical
Conditioning
- Pavlov's Demonstration: "Psychic
Reflexes"
Anmerkungen:
- -While studying the role of saliva in dogs, Pavlov came acroos what he called "psychic reflexes"
-Pavlov would present meat powder to the dog and then collect saliva
-Dogs who were accustomed to the procedure would start salivating before the meat powder was presented
- Terminology &
Procedures
Anmerkungen:
- -Unconditional stimulus-a stimulus that evokes an unconditioned response without previous conditioning (unlearned reaction)
-Conditioned stimulus- previously neutral stimulus that has through conditioning acquired the capacity to evoke a conditioned response
-a trial in classical conditioning ocnisits of any presentation of a stimulis or pair of stimuli
- Classical conditioning in everyday
life
Anmerkungen:
- -Researchers have generally worked with extremely simple responses
-Evaluative conditioning referes to changed in the liking of a stimulus that result from pairing that stimulus with other positive or negative stimuli
-Spontaneous recovery is the reappearance of an extinguished response after a period of non exposure to the conditioned stimulus
- Cognition & Classical
Conditioning
Anmerkungen:
- -The cognitive element in conditioning was absent from Pavlov's original theorizing and much of the classic work that followed
-Rescorla asserts that environmental stimuli serve as signals and that some stimuli are better, or more dependable signals than others.
-Rescorla manipulates the predictive value of a conditioned stimulus
- Evolutionary and Biological Effects on
Conditioning
Anmerkungen:
- -Many people develop aversions to food that has been followed by nausea from illness, alcohol intoxication, or food poisoning
(sauce bearnise syndrom)
-Prepardness involved a species-specific predispositon to be conditioned in certain ways and not others
-Operant conditioning is a form of learning in which responses come to be controlled by their consequences
- Stimulus Generalizations and the Mysterious Case of Little
Albert
Anmerkungen:
- -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
--Higer-order conditioning, in which a conditioned stimulus functions as if it were an unconditioned stimulus
-Many human conditioned responses are the product of higher-order conditioning
- Operant
Conditioning
- Evolutionary and Biological Effects on
Conditioning
Anmerkungen:
- -Instinctive drift occurs when an animal's innate response tendencies interfere with conditioning processes
-Learning is a very general process because the biological bases of learning an the basic problems confronted by various organism are much the same across species
-Reinforcement is not automatic when favourable consequences follow a response
- Cognitive Processes in Conditioning: Latent Learning & Cognitive
Maps
Anmerkungen:
- -Three groups of food deprived rats learned how to get through a maze to get to the food
-The positive reinforcement lead them to increase there time of finding the food in 17 days
-Phenomenom: Latent learning that is not apparent from behaviour when it first occurs
- Punishment: Consequences That Weaken
Responses
Anmerkungen:
- -Punishement occurs when an event following a response weakens the tendency to make that response
-Children who are physically punished can be associated with poor-quality parent child relationships, behaviour, and poor academics
-Can also result in mental problems and delinquency
- Positive Reinforcement vs
Negative
Anmerkungen:
- -Positive reinforcement occurs when a response is strengthened because it is followed by the presentation of a rewarding stimulus
-Negative reinforcement occurs when a response is strengthened because it is followed by the removal of an aversion stimulus
-Ine escape learning an organism acquires a response that decreases or ends some aversive stimulation
- Schedules of
Reinforcement
Anmerkungen:
- -A schedule of reinforcement determines which occurrences of a specific response result in the presentation of a reinforcer
-Continous reinforcement occurs when every instance of a designated respose is reinforced
-Intermittent or partial reinforcement occurs when a designated response is reinforced only some of the time
- Basic Processes in Operant
Conditioning
Anmerkungen:
- -Shaping, which consists of the reinforcement of closer and closer approximations of a desired response
-Resistance to extinction occurs when an organism continues to make a response after delivery of the reinforcer has been terminated
-Discriminative stimulus are cues that influence operant behaviour by indicating that probable consequences of a response
- Terminology and
Procedures
Anmerkungen:
- Operant chamber, skinner box, small enclosure in which an animal can make a specific response that is recorded while the consequences of the response are systematically controlled
-To emit means to send forth
-Reinforcement contingencies are the circumstances or ruled that determine whether responses lead to the presentation of reinforcers
- Thorndyke's Law of
Effect
Anmerkungen:
- -Instrumental learning is another term for operant conditioning
-Thorndike studies animals and created the puzzle box for cats with food available just outside so that they would learn how to escape
-Law of effect, if a response in the presence of s stimulus leads to satisfyin effects the association between the stimulus and the response is strengthened
- Skinner's Demonstration: It's all a Matter of
Consequences
Anmerkungen:
- -Reinforcement occurs when an event following a response increases an organisms tendancy to make that response
-Created the baby box to help improve a child's upbringing
-Something that is reinforcing for an organism may not be reinforcing for another
- Observational
Learning
- Basic
Processes
Anmerkungen:
- -Four key processes:
1.Attention-learn through observation, must pay attention to another person's behaviour and it's consequences
2.Rentention-Must store in your memory a mental representation of what you have witnessed
3. Reproduciton-enacting a modelled response depends on your ability to reproduce the response by converting your stored mental images into overt behaviour
4.Motivation-you are unlikely to reproduce an observed response unless you are motivated to do so
- Observational Learning & The Media Violence
Controversy
Anmerkungen:
- -Excessive Tv watching may have negative effects on academic performance and health
-Children are very impressionable and many pick up responses from what they watch on TV
-Children especially pick up aggressive behaviours from what they watch on TV
- Observational Learning & The Brain: Mirror
Neurons
Anmerkungen:
- -Mirror neutrons are neutrons that are activated by performing an action or by seeing another monkey or person perform the same action
-Mirror neutrons are neutrons that internally represent an action
-Humans also have mirror neuron circuits, which have been found in both the frontal love and the parietal lobe