Relationships And Behavior Flashcards
Behavioral learning
Process in which an individual determines what behaviors are culturally appropriate and how behaviors result in specific outcomes
- can result in modifications of behavior in order to optimize results
Behaviorism: psychological field which is the study of external observable behaviors rather than internal motivations and thoughts
Associative learning
AKA conditioning
Behaviorists study the learning that involves association between certain stimuli and specific responses
Two types of conditioning: classical conditioning and operant conditioning
Classical Conditioning
Test subject develops a response to a previously neutral stimulus by associating the stimulus with another stimulus that already elicited that response
E.g. Pavlov’s dogs, where Pavlov theorized the process of classical conditional during studies of salivation in dogs
Unconditioned stimulus and unconditioned response
unconditioned stimulus: stimulus that elicits a particular behavior
Unconditioned response: A response present before any learning from unconditioned stimulus
I.e. dogs salivating when presented with food
Neutral stimulus
Stimulus eliciting no response
Conditioned stimulus and response
Conditioned stimulus: A stimulus associated with an unconditioned stimulus to elicit a response
Conditioned response: Elicited response learned by associated unconditioned stimulus with conditioned stimulus
Pavlov’s research showed than many neutral stimuli can eventually become conditioned stimuli if they are regularly presented immediately before an unconditioned stimulus
Acquisition and Extinction
Acquisition: Stage of learning over which a conditioned response to a new stimulus is established
Learned behaviors that are not reinforced can be unlearned
Extinction: disappearance of conditioned response due to unlearning to associate two stimuli
Spontaneous recovery: reappearance of conditioned response after period of extinction
- Repeated cycles of extinction and spontaneous recovery, but strength of recovery decreases each time
Stimulus generalization and discrimination
Stimulus generalization: Tendency to respond to stimuli that are similar to the conditioned stimulus with the conditioned response
Stimulus discrimination: Can learn to differentiate between the two stimuli by presenting one similar stimuli without other unconditioned stimuli and the other similar stimuli with the unconditioned stimuli
How does classical conditioning influence human behavior?
Pays an important role in how humans interact
Affects likes, dislikes, fears, and behaviors
May associate ice cream with sickness if contracting a stomach virus after eating ice cream
Advertisers: use calming music or celebrities to build positive associations to brands
Treatment of phobias: feared stimulus is presented with no negative consequences
Operant Conditioning
Type of associative learning in which an individual becomes more or less likely to carry out a certain behavior based on its consequences
Associated with the experiments of BF Skinner who studied animals using a Skinner box (operant conditioning chamber)
- for example, delivery of food to rats after certain behaviors and shocking the floor after other behaviors
Reinforcement and Punishment in Operant conditioning
Reinforcement: Consequence that increases the likelihood of a behavior (such as delivery of food)
- 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
Punishment: Stimulus that decreases the likelihood of a behavior
- positive punishment: introduction of a consequence to decrease a behavior
- negative punishment: removing a stimulus (maybe something desired) to decrease a behavior
Reinforcement and punishment of behavior in operant conditioning can be either positive or negative, which have nothing do to with whether the procedure is pleasant or unpleasant
Primary reinforcer and primary punisher
primary: those that relate to physiological need, harness physiological needs and the drive for survival
- do not require learning to increase the likelihood of a response
Primary reinforcer example: delivery of food
Primary punisher: exposure to extreme temperatures
Secondary reinforcers and punishers
Secondary: require learning and social context to affect behavioral decisions, but once learned, they can be just as effective at controlling behavior as primary reinforcers and punishers
Secondary / conditioned reinforcer examples: money, praise, prestige, and good grades
Secondary / conditioned punisher examples: fines, scolding, ostracism, and bad grades
Is reinforcement or punishment more effective?
Positive reinforcement is much more effective than punishment for establishing desirable behavior patterns
Escape conditioning
Learned behavior allows the subject to escape the unpleasant stimulus
Avoidance conditioning
Learned behavior allows the subject to avoid the unpleasant stimulus altogether by employing a specific response
E.g. a mouse learns to move to one half of the cage after a whistle blow because when the whistle is blown one half of the cage floor is electrified
Reinforcement Schedule
Describes how often and under what conditions a behavior is reinforced
- Disappearance of a behavior through extinction is affected by the reinforcement schedule that was used to establish the behavior
- Continuous vs. partial / intermittent reinforcement
Schedule of partial reinforcment
Fixed ratio: rewards provided after a specified number of responses
- reward given after every third time a mouse presses a lever
Variable-ratio: rewards are provided after an unpredictable number of responses
- reward is given after a mouse presses a lever 3 times, then 5 times, then 2 times
Fixed-interval: rewards to a response are provided after a specified time interval has passed
- reward is given 20 seconds after the first time a mouse presses a lever
Variable-interval: rewards to a response are provided after an unpredictable time interval has passed
- reward is given 3 minutes after the first time a mouse presses a lever, then 2 minutes, etc.
Compare and contrast the effects of continuous vs. partial reinforcement?
Continuous reinforcement is the most rapid way to first establish a response
Behaviors that were established with partial reinforcement take longer to establish, but are much more resistant to extinction (e.g. gambling)
Shaping
Type of operant conditioning that shapes behavior toward a certain response by reinforcing successive approximations toward the desired behavior
Innate behaviors
Developmentally fixed behaviors
Heavily influenced by the physiology and genetic inheritance of the organism and are difficult or impossible to change through learning
(E.g. male sticklebacks that have red bellies instinctively attacking anything red due to territorial-ness)
- innate behaviors are fixed
Cognitive processes
Processes and patterns of thinking that are necessary for the associative learning of non-instinctual behaviors
- Animals must have sufficient higher level brain function to recognize connection between cause and effect and then choose a new course of behavior
- Animal must also have cognitive and physical abilities to perform new behavior asked of it
Observational learning
Learning based on modeling, which consists of witnessing another person’s actions, retaining information on that person’s behavior, and later re-enacting what was learned through that observation in one’s own behavior
Can be task-oriented, as in previous example, or can have a more general influence on an individual’s behavior
Especially important in childhood
- learn to model behavior after that of their parents or other prominent adults in their lives
- species must have intelligence necessary to recognize a novel behavior in others, to remember the behavior, and to apply it to their own life in appropriate situations
- helps people benefit form being introduced to new skills and techniques
- allows people to learn from mistakes of others to avoid making the same mistakes
Mirror neurons
Specialized nerve cells that fire both when a person is completing an action and when the person observes someone else completing the same action
- help humans understand the actions of others and learn by imitation
- helps in observational learning
- observer must have at least some neural capacity for experiencing vicarious emotions (feeling the emotions of others as though they are one’s own) in order to learn from successes and mistakes of others through observation
Behavior
Defined as the sum of coordinates responses of organisms to internal and external stimuli that they experience
Partially influenced by biology of the organism, like genetic inheritance and neural connections that can predispose organisms toward certain behavioral patterns, while hormones form the endocrine system can influence behavioral changes in a relatively direct and immediate manner
- natural selection selects for behavior in the same way that it selects for other fitness traits (select against inappropriate and maladaptive behavior)
Verbal communication
Exhibited by humans and confers a wide variety of evolutionary advantages
- transfer knowledge and ideas form one individual to the next with a high level of precision
- However, most communication is non-verbal
Non-verbal communciation
Communication between people that does not involve words
- Includes body language, touch, appearance, and facial expressions
- Most communication is non-verbal
Animal signals
Consists of vocalizations (distress calls) or use of visual stimuli, touch, and smell for communications
Social behavior
Defined as all interactions taking place between members of the same species
- communication between members of a species is crucial to survival because it allows most animals to engage in a wide variety of social behavior
Built into biological makeup of many species
Types:
- attraction: factors that draw members of a species together
- aggression: conflict and competition between individuals
- attachment: forming relationships between individuals
- social support: finding help through social connections
Foraging behavior
Set of behaviors through which animals obtain food
- type of social behavior that can be observed in many species
- optimize foraging behavior to maximize energy available through food and minimize energy expenditure involved in obtaining it
- social behavior can increase foraging efficiency by allowing knowledge of effective
techniques to be passed from individual to individual
- teamwork of tribes of ice-age humans to kill a mammoth
Mating behavior
Behavior surrounding propagation of a species through reproduction
- success at reproduction determines whether or not an individual’s genes survive in the population, natural selection
Mate choice: process by which one member of species chooses another individual with which to reproduce
- determined by attempts to judge genetic qualities, overall health, potential parenting skills of prospective mates
Altrusim
Behaviors that are disadvantageous to individual acting, but confer benefits to other members of social group
- appears to have no evolutionary benefit, because one assumes these genes would quickly be eliminated from a population
- one theory of propagation of altruism is inclusive fitness: overall fitness by considering not only the individual’s own progeny, but also the offspring of its close relatives which share much of its genetic makeup
Game theory
Use of mathematical models to represent complex decision making in which the actions of other group members must be taken into account
- helps understand and model decision making processes that govern competition, altruism, and other social behaviors
- interactions between organisms can be modeled as a multiplayer game in which each player carries out competitive or cooperative strategies and decisions that maximize evolutionary fitness
- success depends not only on their own strategy, but also on strategies and decisions of other ‘players’
- presupposes that most successful strategies result in greater fitness and will be favored by natural selection
- e.g. prisoner’s dilemma where two prisoners have option to confess in which other person receives longer sentence and they go free