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Structuralism

An early school of psychology (late 19th/early 20th century) focused on breaking down mental processes into their basic conscious elements using introspection.

Introspection

The primary method of structuralism, where individuals describe their detailed conscious sensory experiences and internal thoughts in response to stimuli.

Main weakness of Introspection

It lacks objectivity and reliability, producing highly subjective data that differs across individuals and cannot yield verifiable or replicable scientific results.

John B. Watson

The founder of Watsonian Behaviorism (1913) who shifted the focus of psychology from the study of the mind to the study of observable behavior (Stimulus-Response / S-R psychology).

Stimulus-Response (S-R) Behaviorism

Watson's early model of behaviorism that analyzed behavior strictly as direct responses to environmental stimuli, ignoring internal or mediating variables.

Neo-Behaviorism

A development in the 1930s that modified S-R psychology by inferring unobservable internal processes (e.g., drives, internal states) that mediate the relationship between stimulus and response.

Methodological Behaviorism

A psychological stance closely tied to logical positivism/operationism that excludes unobservable mental events from scientific study due to a lack of public measurability and interobserver agreement.

Psychophysical Parallelism

A philosophical view held by some methodological behaviorists stating that mind and matter exist as separate entities, but do not interact with or influence each other.

Skinner's view on Sensation and Perception

Skinner rejected mental explanations of perception, redefining sensation/perception as a organism's observable capacity to discriminate among physical stimuli.

Mentalism

An approach in psychology/philosophy asserting that internal, unobservable mental states (e.g., thoughts, feelings, drives, intentions) are the primary causes of behavior.

René Descartes

A historical philosopher whose ideas heavily influenced mentalism by proposing a dualistic view where behavior originates from an internal mind or soul.

Radical Behaviorism

B.F. Skinner's philosophy of science which asserts that all human action—including internal ("private") events like thoughts and feelings—is behavior governed by environmental contingencies.

Radical Behaviorist view on Thoughts and Feelings

Private events (thoughts, feelings) are recognized as real behaviors subject to the same environmental laws as public behavior, but they are NEVER considered causes of other behavior.

Skinner's definition of Behaviorism

"Behaviorism is not the science of human behavior; it is the philosophy of that science."

Logical Positivism / Operationism

Philosophical movements demanding that any scientific variable under study must have a reliable, objective measurement system agreed upon by multiple observers.

Determinism

The foundational scientific assumption that behavior is lawful, orderly, and determined by specifiable antecedent conditions and environmental consequences, rather than random occurrence.

Free Will

The belief that human behavior is driven by autonomous choice independent of environmental influences, a notion rejected by radical behaviorists as incompatible with scientific prediction and control.

Cultural Resistance to Behaviorism

Western societies value personal freedom, autonomy, and individual credit/blame, making determinism uncomfortable because it attribute actions to environmental history rather than inner choice.

Advantage of Determinism over Free Will

Determinism allows us to identify environmental variables driving behavior and manipulate them to design solutions, whereas attributing behavior to "free will" provides no actionable path to change.

Cumulative Nature of Science

Unlike art or literature, science continually builds upon past discoveries, resulting in progressive advancement (e.g., a modern high school student understands more about nature than ancient Greek scholars).

Attitudes of Science (Skinner)

A foundational mindset characterized by intellectual honesty, commitment to empirical observation over authority, open-mindedness, and willingness to accept facts even when opposing personal wishes.

Scientist-Practitioner Model

An approach where behavior analysts continuously ground clinical practice in objective evidence, conduct rigorous empirical evaluation, and maintain scientific skepticism.

Scientific Skepticism vs. Cynicism

Skepticism means withholding judgment or assumptions until empirical evidence is present (and accepting facts when available), rather than cynically dismissing claims out of hand.

Observer Bias and Interobserver Agreement (IOA)

Methods used to ensure objective measurement by verifying that two independent observers record the exact same occurrences of an event, demonstrating reliable control and data integrity.

Guidelines for Stewards of Behavior Analysis (Normand, 2008)

Behavior analysts should rely on peer-reviewed literature, control for extraneous variables, replicate findings, remain open to non-behavior-analytic empirical findings, and embrace self-correction.

Unconditioned Reflex

An automatic, unlearned stimulus-response relationship hardwired into an organism's biology (e.g., salivation to food, eye blink to a puff of air).

Conditioned Reflex

A learned stimulus-response relation formed when a neutral stimulus is repeatedly paired with an unconditioned stimulus until it elicits a response.

Classical (Respondent) Conditioning

The learning process in which a neutral stimulus is paired with an unconditioned stimulus, extending the scope of stimuli that can elicit reflexive behavior.

Limit of Classical Conditioning

Conditioning expands the range of stimuli that can elicit existing reflexive responses, but it DOES NOT create novel behaviors.

Skinner's Salamander Toe Observation

An observation showing a disconnected toe responding to touch, demonstrating that reflexive behavior is controlled by external stimuli rather than inner willpower or "spirit."

Pavlov's Auditory Stimulus Misnomer

While commonly cited as a "bell," Ivan Pavlov actually used a tuning fork as the primary auditory conditioned stimulus in his famous salivation experiments.

Maladaptive Conditioned Response

A conditioned reflex that fails to serve a useful purpose in current environments, such as panic/heart rate acceleration triggered by mild airplane turbulence.

Operant Conditioning

The process by which novel behaviors are generated, shaped, and maintained through interaction with the environment and consequences (reinforcement/punishment).

Phylogeny

The evolutionary history of a species; refers to innate, unlearned behaviors (e.g., instincts, unconditioned reflexes) shaped across generations via natural selection.

Ontogeny

The development and learning history of an individual organism during its lifetime; refers to behaviors shaped and selected through operant conditioning.

Contingencies of Survival vs. Contingencies of Reinforcement

Contingencies of survival shape phylogenetic (evolutionary) behaviors across generations; contingencies of reinforcement shape ontogenetic (learned) behaviors during an individual's life.

Selectionism

The fundamental behavioral philosophy that behavior is selected, shaped, and maintained at three levels by its consequences: biological (phylogeny), individual (ontogeny), and social (culture).

Three Levels of Selection (Skinner)

1. Natural Selection (Phylogeny)<br>2. Operant Conditioning (Ontogeny)<br>3. Cultural Selection (Social practices)

Cultural Selection

The transmission and maintenance of social behaviors, rituals, and practices across generations because they benefit group survival or cohesion, independent of genetic transmission.

Role of Genes in Behavior

Genes do not directly cause behavior; rather, they provide physical structures and set up an organism's susceptibilities/predispositions to environmental influence.

"Dumping Ground" Warning (Moore)

A warning by Jay Moore against falsely attributing unexplained or obscure behaviors to genetic inheritance simply because environmental contingencies are not immediately obvious.

Skepticism & Parsimony in Etiology

Failing to observe the reinforcement history maintaining a behavior does NOT mean it is automatic or genetic; scientists must avoid defaulting to the easiest/simplest explanation without evidence.

Role of Mirror Neurons in Imitation

Brain structures hypothesized to facilitate motor imitation; dysfunction in this system may contribute to imitation deficits in individuals diagnosed with autism.

Mirrors in ABA Motor Imitation Training

Using mirrors in ABA interventions to provide visual Feedback and environmental manipulation, applying operant conditioning to shape and reinforce motor imitation.

Purdue Hen Experiment (Group vs. Individual Selection)

Selecting individual top egg-layers produced hyper-aggressive, deadly hens; selecting top-producing *groups* fostered cooperative traits that successfully increased overall egg yield.# Headers: Front

E.L. Thorndike's Puzzle Box Experiment (1898)

An experiment where hungry cats learned to escape a box by pressing a lever; established that behaviors producing satisfying outcomes increase in frequency.

Law of Effect

Thorndike's principle stating that behaviors followed by satisfying (pleasing) consequences are more likely to recur, whereas behaviors followed by unpleasant consequences are less likely to recur.

Thorndike's Learning Curve

A graphic representation of the gradual reduction in time (seconds) taken for an animal to escape across successive trials, demonstrating gradual learning through experience.

"Phantom Plateau" (Keller & Fitts/Posner)

Fred Keller's term for the apparent flattening or "plateau" in learning curves, arguing that learning continuously produces more learning and plateaus are artifacts rather than true limits.

Rate of Response / Frequency

B.F. Skinner's primary quantitative measure of operant behavior, defined as the count of a repeatable response over time under conditions with minimal environmental interference.

Skinner's Critique of "Learning"

Skinner rejected "learning" as an unobservable, mentalistic explanatory fiction, proposing instead that we study how environmental consequences alter the physical frequency of behavior.

Skinner's Critique of "Trial-and-Error"

A misleading term that improperly treats non-responses or inactive periods as "errors," obscuring the actual physical properties of behavior shaped by consequences.

Motivating Operations (Deprivation and Satiation)

Environmental states (e.g., food deprivation) that alter the momentary effectiveness of a reinforcer (e.g., food) and the frequency of behavior previously reinforced by it.

Skinner's Evolutionary View of Hunger

Food reinforcement is not caused by "feeling hungry" or "reducing a physiological need"; rather, evolutionary natural selection selected the state felt as hunger because of its survival value for food-seeking behavior.

Fluency

The automaticity and speed with which a behavior is performed without conscious effort, established through repeated reinforcement.

Behavioral Interpretation of Confidence

Confidence is not an innate mental trait or cause of behavior; it is a behavioral product/construct shaped by a history of repeated reinforcement and successful past performance.

Explanatory Fiction & Circular Reasoning in Confidence

Attributing successful performance to "inner confidence" creates circular reasoning (e.g., "She speaks well because she has confidence; we know she has confidence because she speaks well").

Social Consequences vs. Technical Outcome Measures

Social praise (e.g., a crowd cheering) can maintain confident behavior despite inconsistent technical success (e.g., Babe Ruth leading in strikeouts while setting home run records).

Behavioral Definition of "Learning"

A observable and measurable change in behavior (frequency, rate, or form) resulting from an organism's dynamic interaction with environmental contingencies.

Behavioral Interpretation of "Purpose"

Purpose is not an internal drive or motive; it is a functional relationship reflecting the past environmental consequences (reinforcement history) that select and maintain a behavior.

Behavioral Interpretation of "Intent"

Intent is not a hidden mental state; it is a functional description of predictable behavioral outcomes based on an organism's past reinforcement history in similar conditions.

Behavioral Interpretation of "Belief"

Belief is a form of verbal behavior shaped and maintained by environmental reinforcement history, rather than an unobservable internal mental state that causes action.

Function of Positive Affirmations

Verbal behavior (affirmations) can act as a discriminative stimulus ($S^D$) to evoke associated behaviors, but only if grounded in an actual past history of success/reinforcement.# Headers: Front

Traditional View of Language (Chomsky/Linguistics)

Views language as an internal cognitive process, an innate mental faculty (e.g., universal grammar), or a system of rules used to express internal thoughts and symbolic meanings.

Verbal Behavior (Skinner)

Operant behavior that is reinforced through the mediation of another person (a listener) who has been specifically conditioned by a verbal community to reinforce such responses.

Verbal Community

A group of listeners conditioned by common contingencies to reinforce specific verbal responses, thereby shaping dialects, social norms, and regional vocabularies over time.

Verbal Behavior vs. Non-Verbal Operant

Pressing a button to get water directly produces physical reinforcement (non-verbal operant); asking a person for water requires a listener to mediate reinforcement (verbal behavior).

Mand

A primary verbal operant controlled by a Motivating Operation (deprivation or aversive stimulation) and maintained by a specific reinforcer requested by the speaker.

Tact

A primary verbal operant under the stimulus control of a non-verbal physical object or event in the environment and maintained by generalized conditioned reinforcement.

Meaning of Words (Behavioral View)

Meaning resides not inside mental structures or dictionaries, but in the specific environmental contingencies of reinforcement that control a word's use within a verbal community.

Dictionary Definition Critique

Dictionaries do not provide inner "meanings"; they merely supply alternative words governed by equivalent contingencies within a language system.

Topography vs. Function in Verbal Behavior

The physical form/sound of a word (topography) can remain identical while its functional classification (e.g., mand vs. tact vs. intraverbal) changes based on controlling antecedents and consequences.

Regional/Temporal Shifts in Verbal Behavior

Changes in word usage over time or location (e.g., "sweeper" vs. "vacuum", "clicker" for TV remote) illustrate how shifts in the active verbal community extinguish or reinforce specific verbal topographies.

Idioms and Verbal Communities

Idiomatic expressions (e.g., "break a leg", Italian: "in the mouth of the wolf") rely entirely on specific cultural verbal communities; their meanings cannot be deduced from literal word topographies.

Clinical Relevance: Age-Appropriate Verbal Repertoires

When teaching communication to children with autism, practitioners must select verbal topographies reinforced by the child's natural peer community rather than adult-derived formal scripts.

Flaw in Traditional Social Skills Training

Many formal programs teach rigid, unnatural scripts (e.g., formal introductions) that do not align with naturalistic peer interactions, leading to a lack of social reinforcement in natural settings.

Verbal Behavior as Functional Operant (Normand, 2009)

Emphasizes that defining verbal behavior functionally via listener mediation avoids cognitive/mentalistic constructs while grounding language study in observable, environment-behavior relationships.

Private Events in Verbal Behavior

The verbal community conditions individuals to label private sensations (e.g., pain) by observing public accompaniments, collateral responses, or shared physical properties.

Humility in Behavioral Analysis of Language

While single verbal contingencies explain elementary verbal operants, behavior analysts acknowledge that complex verbal phenomena require continued research without resorting to mentalistic explanations.# Headers: Front

Radical Behaviorism vs. Mentalism on Private Events

Radical behaviorism treats private events (feelings, thoughts) as physical operant/respondent behaviors governed by the same environmental principles as public behaviors, whereas mentalism treats them as non-physical cognitive causes of behavior.

Interoceptive Stimuli

Internal sensory signals arising from organs and tissues (e.g., stomach cramps, racing heartbeat) that provide information about an individual's internal physiological state.

Proprioceptive Stimuli

Sensory feedback generated by muscle movements, joints, and tendons (e.g., balance, posture, feeling the form of a golf swing) informing body position in space.

Exteroceptive Stimuli

Sensory inputs from the external environment perceived through the traditional five senses (sight, sound, touch, taste, smell).

Public Accompaniments (Skinner)

Observable public stimuli or physical events that reliably occur alongside a private event (e.g., a visible bleeding knee allows a parent to teach "that hurts").

Collateral Responses (Skinner)

Observable external behaviors that naturally accompany private sensations (e.g., clutching one's stomach or crying when experiencing internal pain).

Limitations of Introspective Reports

Self-reports of private events are often unreliable because the verbal community cannot directly observe or differentiate the controlling internal stimuli during training.

Automatic Reinforcement & Covert Behavior

Private verbal behavior (talking to oneself) can be reinforced automatically by the speaker's own auditory or cognitive response without requiring an external listener.

Think Aloud Problem Solving (TAPS)

A behavioral teaching protocol (often paired with peer mentoring) that converts covert thinking processes into overt verbalization so problem-solving repertoires can be shaped and reinforced.

Consciousness (Behavioral Definition - Moore)

The repertoire of responding—especially verbal tacting—to one's own internal and external stimuli, shaped and maintained by social reinforcement from the verbal community.

Cultural Variations in Tacting Private Events

The precision with which individuals label subtle internal states (e.g., specific pain topographies) depends on how extensively their cultural verbal community conditions and reinforces those discriminations.

Parsimony & Brain Mapping

Brain imaging/mapping identifies physiological correlates and topographies of private behavior, but behavior change still depends on manipulating environmental contingencies rather than neural maps alone.

Phantom Limb Phenomenon & Environmental Control (Ramachandran)

Sensory sensations in missing limbs demonstrate that perceptual responses are maintained by established neural and environmental pathways, which can be manipulated through environmental interventions (e.g., mirror box therapy).

Methodological Behaviorism vs. Radical Behaviorism

Methodological behaviorism rejects private events because they are not publicly observable; radical behaviorism includes private events as valid physical behavior subject to natural laws.# Headers: Front

Thinking as Behaving (Skinner)

Thinking is not an internal, non-physical origin of action; it is physical operant behavior (often covert or weak) governed by the same environmental principles and contingencies as overt behavior.

Behavioral View of "The Self"

The "self" is not an originating internal agent or inner personality directing actions; it is a functionally unified system of response repertoires shaped and maintained by environmental contingencies.

Weak Behavior

Behavior that has a low probability of emission due to subtle or competing stimulus control; "thinking" often describes tentative or low-probability responding prior to overt action.

Decision-Making (Behavioral Definition)

Decision-making is not the terminal choice of selecting an option; it is the preliminary behavior of manipulating environmental stimuli (e.g., making lists, seeking probes) to alter response probabilities.

Reinforcers for Decision-Making

Decision-making behavior is maintained by terminating the aversiveness of indecision (escape) and by social reinforcement from the verbal community for deliberate, non-impulsive behavior.

Recalling / Memory (Behavioral View)

Recalling is not retrieving items stored in a mental "memory bank"; it is engaging in self-prompting behaviors (e.g., reviewing context, alphabet probes) to increase the probability of emitting a weak response.

Problem-Solving (Behavioral Definition)

Problem-solving is not emitting the terminal solution; it is the intermediate manipulation of environmental stimuli (e.g., rearranging tiles, testing tools) that makes the terminal response possible.