Lecture 2 Flashcards
Behavioral Learning
An individual determines what behaviors are culturally appropriate and how behaviors result in specific outcomes.
Associative Learning/Conditioning
Learning that involves associations between certain stimuli and specific response.
Acquisition
Stage of learning over which a conditioned response to a new stimulus is established
Extinction
Disappearance of the conditioned response.
Spontaneous Recovery
Reappearance of the conditioned response after a period of extinction.
Stimulus Generalization
Tendency to respond to stimuli that are similar to the conditioned stimulus. (American crow call vs. western raven call)
Stimulus Discrimination
Learned lack of response to a stimulus similar to the conditioned stimulus. (keep training so a dog can determine differences between bird calls and will only salivate with one)
Operant Conditioning
Associative learning in which an individual becomes more or less likely to carry out a certain behavior based on its consequences. (Skinner box - rat steps on lever to dispense food)
Reinforcement
Consequence that that INCREASES the likelihood of a behavior (food delivery)
Punishment
Stimulus that DECREASES the likelihood of a behavior (shock delivery)
Positive Reinforcement
Introduction of a reinforcing stimulus in response to a desired behavior.
Negative Reinforcement
Removal of an unpleasant stimulus in response to a desired behavior.
Primary Reinforcers/Punishers
Harness physiological needs and the drive for survival. Do not require learning.
Primary reinforcer example
Delivery of food
Primary punisher example
Exposure to extreme temperatures
Secondary Reinforcers/Punishers
Require learning and social context to affect behavioral decisions. Once learned they can be just as effective as primary reinforcers and punishers.
Secondary Reinforcer/Conditioned Reinforcer examples
Money, praise, prestige, good grades
Secondary Punisher Example
Fines, scolding, ostracism, and bad grades
Escape Conditioning
Learned behavior that allows the subject to escape an unpleasant stimulus. (mouse cage with half the floor capable of delivering shocks)
Avoidance Conditioning
Learned behavior allows the subject to avoid the unpleasant stimulus altogether by employing a specific response. (blowing a whistle before shocks, allow mouse to move to different region)
Reinforcement Schedule
Describes how often and under what conditions a behavior is reinforced. (extinction depends on this schedule)
Fixed-Ratio
Rewards are provided after a specified number of responses (reward after every third time)
Variable-Ratio
Rewards are provided after an unpredictable number of responses (most successful)
Fixed-Interval
Rewards to a response are provided after a specified time interval has passed (reward given 20 seconds after lever is pressed)
Variable-interval
Rewards to a response are provided after a unpredictable time interval has passed.
Continuous Reinforcement
Most rapid way to first establish a response. (Mouse receives reward after every time lever is pressed)
Partial/Intermittent reinfrocement
Individual is rewarded only some of the times the action has been done.
Behaviors that were established with a partial reinforcement schedule are much more resistant to extinction. (gambling)
Shaping
Operant conditioning that shapes behavior toward a certain response by reinforcing successive approximations towards a desired behavior
Innate behaviors
Developmentally fixed. Heavily influenced by physiology and genetic inheritance that are very difficult or impossible to change through learning
Cognitive Processes
Necessary for associative learning of non-instinctual behaviors. Animal must have sufficient higher level brain function to recognize the connection between cause and effect and then choose a new course of behavior. Activities of any animal are always prone to biological constraints
Observational Learning
Consists of witnessing another person’s actions, retaining information on that person’s behavior, and later re-encating what was learned through that observation. MODELING
Mirror Neurons
Specialized nerve cells fire both when a person is completing an action and when the person observes someone else completing the same action.
Vicarious Emotions
Feeling the emotions of others as though they are one’s own, in order to learn from the successes and mistakes of others through observation.
Behavior
The sum of coordinated responses of organisms to the internal and external stimuli that they experience. Partially influenced by the biology of the organism.
Animal Signals
Consist of vocalizations or the use of visual stimuli, touch, and smell for communication
Social Behavior
All interactions taking place between members of the same species. (attraction, aggression, attachment, and social support)
Attraction
Factors that draw members of a species togehter
Aggression
Conflict and competition between individuals