Psychology.

Influence becomes easier to understand when the message, the social cue and the person’s circumstances are visible.

Ideas from Robert Cialdini · Influence: The Psychology of Persuasion

Cialdini organised and popularised this framework. Each lesson also names researchers behind relevant evidence. The examples here are original teaching examples.

Cialdini’s framework covers reciprocity, commitment and consistency, social proof, liking, authority, scarcity and unity. The expanded Influence includes unity. These headings organise a much older and wider field of research into how people affect one another.

Effects depend on the person, relationship and situation. Several influences may be present together.

• Influence: the expanded edition and its seven principles
• Robert Cialdini: seven principles of persuasion
• Influence at Work: ethical application in everyday relationships

Receiving something can change a later decision through a feeling of obligation.

Ideas from Robert Cialdini · Influence: The Psychology of Persuasion

Cialdini popularised reciprocity within Influence. Dennis Regan studied favours and compliance in 1971; reciprocity has a longer history in social science.

In Dennis Regan’s 1971 experiment, participants who received a drink from another person later bought more raffle tickets from him. The study helped separate the effect of a favour from how much participants liked the person.

Reciprocity describes a tendency to respond to a favour or concession. Relationships, culture, resources and the size of a request influence the response. Receiving help creates no automatic obligation to accept a later request.

A gift can create pressure. Giving someone something leaves them free to refuse a later request.

• Dennis Regan (1971): receiving a favour and agreeing to a request
• Robert Cialdini: seven principles of persuasion

An earlier agreement can influence a later choice even when the size of the commitment changes.

Ideas from Robert Cialdini · Influence: The Psychology of Persuasion

Cialdini connects commitment and consistency in Influence. Jonathan Freedman and Scott Fraser published the cited request experiments in 1966.

Freedman and Fraser’s 1966 experiments found that agreeing to a small request could increase agreement to a later, larger request. One experiment used the same requester; another used different requesters. This is often called the foot-in-the-door effect.

An earlier yes has a particular scope. Reconsidering a later request can be a sensible response to new information.

• Freedman and Fraser (1966): small requests and later requests
• Robert Cialdini: seven principles of persuasion

Other people’s choices become more useful evidence when their circumstances resemble the current choice.

Ideas from Robert Cialdini · Influence: The Psychology of Persuasion

Cialdini popularised social proof as an influence principle. The cited hotel research was conducted by Noah Goldstein, Robert Cialdini and Vladas Griskevicius.

Goldstein, Cialdini and Griskevicius tested messages about hotel towel reuse. Messages describing other guests’ behaviour increased reuse compared with the environmental message tested. The studies show that information about a group can affect a particular everyday action.

Imagine ten people forwarding the same unverified review. The screen shows ten recommendations, while the underlying evidence comes from one report. Before counting a crowd as strong evidence, ask where its information began and how independent its members are.

A popular choice can fit other people’s needs and still be a poor fit for yours. Crowd information can also be misleading.

• Goldstein, Cialdini and Griskevicius (2008): social norms in a hotel
• Robert Cialdini: seven principles of persuasion

Liking a person can shape how their proposal feels, alongside evidence about the proposal itself.

Ideas from Robert Cialdini · Influence: The Psychology of Persuasion

Cialdini includes liking in Influence. Jerry Burger, Nicole Messian, Shebani Patel, Alicia del Prado and Carmen Anderson conducted the cited similarity studies.

Burger and colleagues’ 2004 studies found greater agreement to requests when students believed they shared incidental details, such as a birthday, with the requester. Small similarities can affect a social interaction, even when the similarity tells us little about the request.

Liking is one influence among many. Its effects vary with the relationship, request and setting.

• Burger and colleagues (2004): shared details and agreement
• Robert Cialdini: seven principles of persuasion

An authority signal becomes more reliable when relevant expertise and visible evidence support the advice.

Ideas from Robert Cialdini · Influence: The Psychology of Persuasion

Cialdini includes authority in Influence. Leonard Bickman’s earlier experiments examined how uniforms affected responses to requests.

In Leonard Bickman’s 1974 street experiments, people agreed to requests more often when the requester wore a guard’s uniform than civilian clothes or a milkman’s uniform. Clothing affected responses to ordinary requests in the settings studied.

A signal of authority can be mistaken or misused. Relevant expertise, evidence and accountability strengthen a reason to trust advice.

• Leonard Bickman (1974): the social power of a uniform
• Robert Cialdini: seven principles of persuasion

A real limit describes availability; the whole decision also includes value, cost and fit.

Ideas from Robert Cialdini · Influence: The Psychology of Persuasion

Cialdini popularised scarcity in Influence. Stephen Worchel, Jerry Lee and Akanbi Adewole studied supply and perceived value in 1975.

Worchel, Lee and Adewole’s 1975 experiments varied the supply of cookies. Scarce cookies received higher desirability ratings in the conditions studied. A change from abundant to scarce also mattered, as did the explanation given for the shortage.

Picture two labels beside an identical item: one left, and many available. The labels change the situation around the item. Before deciding, write one sentence about what the item would do for you. Then compare that benefit with its cost.

Availability and usefulness are separate questions. A real limit gives information; invented limits can mislead people.

• Worchel, Lee and Adewole (1975): supply and perceived value
• Robert Cialdini: seven principles of persuasion

A shared identity can bring people together while leaving room for different circumstances and choices.

Ideas from Robert Cialdini · Influence: The Psychology of Persuasion

Cialdini added unity to the expanded Influence. His earlier research with Stephanie Brown, Brian Lewis, Carol Luce and Steven Neuberg explored closeness and helping.

Cialdini and colleagues’ 1997 research explored closeness and willingness to help. They examined how much people felt that another person overlapped with their sense of self. This earlier work contributes to the background of Cialdini’s later unity principle.

A shared identity can support cooperation and favour insiders. The reasons, fairness and consequences of a request still need attention.

• Influence: the expanded edition and its seven principles
• Cialdini and colleagues (1997): closeness, shared identity and helping
• Robert Cialdini: The Power of Unity

Demartini’s central proposal is that seeing benefits and drawbacks together can reduce emotional intensity.

Ideas from John Demartini · The Breakthrough Experience and the Demartini Method

An original explanation of his account of benefits, drawbacks and emotional charge.

Demartini makes a stronger philosophical claim: benefits and drawbacks are always perfectly balanced. Establishing that as a universal fact would require a clear way to measure each side and independent evidence.

Here, cancelling out describes his proposed change in emotional intensity. The event, its consequences and responsibility for what happened remain part of the picture.

The Breakthrough Experience is both a book title and a seminar name. The seminar teaches the Demartini Method, his structured process for examining perceptions.

Harm, accountability and personal boundaries still matter. A person may continue to feel distressed while considering several perspectives. Clinical claims require separate evidence.

• John Demartini: the Demartini Method, his description of balancing perceptions and emotional charge
• John Demartini: Love and Wisdom, benefits within difficulty and drawbacks within attraction
• Demartini Institute: his claim that perceived benefits and drawbacks can be perfectly balanced
• Demartini Institute: The Breakthrough Experience seminar and its relationship to the method

Perception combines available sensory clues with prior knowledge and can change when better information arrives.

Bottom-up processing begins with incoming sensory features. Top-down influences come from knowledge and expectations. Both can contribute to a single experience. Hearing an unclear word inside a familiar sentence illustrates how surrounding meaning can help resolve an ambiguous sound.

Full visual explanation

Specific theories of perception differ, and a simple construction metaphor leaves out many neural mechanisms.

• OpenStax: Sensation and perception

Attention allocates limited processing to selected information and can shift through goals or unexpected events.

Imagine ten labelled objects on a table. Search only for circular ones, then hide the picture and list what you remember. Your chosen task changes which details receive priority. This small exercise illustrates selection, with performance varying across people and conditions.

A spotlight is a useful first picture, but attention includes several functions, including selecting locations, features and tasks. You can attend to a voice while looking elsewhere. The different functions depend on interacting networks and the demands of the current activity.

Full visual explanation

Attention has several mechanisms, so a single spotlight captures only part of how it works.

• APA Dictionary: Attention

Working memory keeps information available while it is being used, and external records can carry some of that load.

A chunk is a meaningful group. The letters C, A and T can form the familiar chunk “cat”. Familiarity helps you treat several pieces as one useful unit, so apparent capacity depends on what the pieces mean and what you already know.

Research often finds only a few chunks available under controlled conditions, with the estimate depending on the task and method. The work-surface picture expresses that limited capacity. A universal fixed number for every person and every situation would oversimplify the evidence.

Capacity estimates depend on task, expertise, grouping and measurement conditions.

• Cowan: Limits of short-term memory

Memory depends on what is taken in, how it is retained and what later helps retrieve it.

Facts, personal events and practised skills place different demands on memory systems. Knowing a bicycle has two wheels, remembering your first ride and balancing while riding are related experiences with different forms of memory involved. One storage-box picture hides those distinctions.

A retrieval cue is like a starting point along a path. The cue can help access information associated with it, while other similar memories compete. Repeatedly using a fact in varied meaningful examples can create additional useful routes for later access.

Memory is selective and reconstructive, and confidence can exceed accuracy.

• OpenStax: How memory functions

Trying to recall and then checking the result can strengthen memory while exposing gaps in understanding.

Familiarity can make a displayed explanation feel easy. A blank page creates a different demand: producing the idea yourself. Write a short answer before revealing the lesson. Comparing the two provides evidence about your current understanding and a target for the next attempt.

Retrieval tasks can range from recalling a word to applying a principle in a new example. Match the practice to the ability you want. If you want to explain a concept in conversation, practise explaining a small mechanism aloud and checking its accuracy.

Benefits vary with material, difficulty, timing and feedback, and inaccurate answers need correction.

• Roediger and Karpicke: Test-enhanced learning

Returning to learning after a gap can support retention, with the useful spacing shaped by the material and learner.

Longer gaps can make retrieval harder, and overly long gaps can make recall fail. The useful balance changes as knowledge strengthens. An adaptive schedule uses your performance as information, while remembering that a single successful answer gives limited evidence of durable understanding.

There is no single spacing schedule that is best for every material, learner and retention goal.

• Cepeda and colleagues: Distributed practice

A cue can acquire meaning through a reliable relationship with a significant event.

Extinction refers to a reduction in a learned response when the cue repeatedly appears without the expected event. Later recovery can occur under some conditions, showing why a simple erased-link picture leaves out important features of the learning process.

Conditioning depends on timing, context, biological predispositions and the information supplied by the cue.

• OpenStax: Classical conditioning

A consequence functions as reinforcement when it increases the action that produced it in that setting.

Positive reinforcement adds a consequence that increases behaviour, such as praise that encourages another attempt. Negative reinforcement removes an unpleasant condition, such as a seat-belt alarm stopping after fastening. Positive and negative refer to adding and removing in this technical vocabulary.

Timing and consistency matter. A consequence closely connected with an action can be easier to learn from than a distant unclear result. Track the exact sequence of cue, behaviour and consequence before assuming a promised reward is actually shaping the behaviour you intended.

A reward chosen by an observer functions as reinforcement only if it increases the relevant behaviour.

• OpenStax: Operant conditioning

Watching supplies information about an action while practice reveals what is needed to perform it.

Observed consequences can influence whether a person chooses to imitate. Watching an action succeed or fail gives information about possible outcomes. The observer’s own goals, context and ability still influence what they do with that information when an opportunity appears.

Watching a demonstration can support learning, while skilled performance usually also requires suitable practice and feedback.

• OpenStax: Observational learning

Repeated action in a stable setting can make the setting itself more likely to trigger that action.

A frequently repeated action can still be deliberate. Habit research examines the role of context and automaticity, alongside goals. To understand one routine, ask both what the person is trying to achieve and how the setting prompts a learned response.

Full visual explanation

Habit formation varies widely, and a fixed number of days cannot describe every behaviour and person.

• Wood and Rünger: Psychology of habit

Motivation directs action through several possible needs and goals, while circumstances shape what can actually happen.

Intrinsic motivation involves interest or satisfaction in the activity itself. Extrinsic motivation involves outcomes such as a reward or requirement. Both can be present together, and the effect of a reward depends on the task, its meaning and how it is delivered.

No single motive or chemical signal provides a complete explanation for a person’s behaviour.

• OpenStax: Motivation

An emotion develops through the interaction of an event, its meaning, bodily changes and possible actions.

Researchers debate how emotion categories arise and how universal particular patterns are. Some theories emphasise basic response patterns; others emphasise construction and context. A beginner diagram can show shared components while leaving those theoretical disagreements visible for deeper exploration.

A single facial expression, brain area or bodily signal cannot uniquely identify every emotional experience.

• OpenStax: Emotion

Stress responses depend partly on how a demand relates to the resources and support available to meet it.

Your body can prepare for action, changing alertness, breathing and heart rate. One route is a fast network of nerves called the sympathetic nervous system. Slower chemical messages called hormones also participate. Duration and context affect what the response does.

This educational model simplifies stress and cannot assess an individual’s health or explain every stress response.

• OpenStax: What is stress?

Changing information, attention or action can influence an emotion while its external cause remains present.

Reappraisal means changing how you interpret a situation. In the train example, finding a useful activity can change the meaning of the wait. The practical facts still matter: a missed connection may require action, and the interpretation should remain responsive to those facts.

Expressive suppression involves holding back outward signs of emotion. Laboratory studies compare it with strategies such as reappraisal and examine experience, expression and physiology separately. Effects differ across outcomes and contexts, which makes a universal ranking of strategies too simple.

A strategy helpful in one situation can be unhelpful in another, and regulation has multiple possible goals.

• Gross: Emotion regulation experiments

A cognitive bias is a patterned influence on judgement whose presence and size depend on the situation.

A bias label is a hypothesis about a pattern. If someone disagrees with you, the label alone supplies little evidence about the cause. Specify the task, predicted distortion and comparison that would show the pattern before attributing their judgement to a particular bias.

Expertise can improve performance while leaving some contextual influences active. Structured information gathering, independent estimates and feedback can help in particular settings. The relevant question is whether a method improves accuracy on the actual task, using evidence that fits the situation.

Bias effects vary across tasks and contexts, and knowing their names does not remove their influence.

• APA: Cognitive biases and expert judgement

An existing belief can guide which evidence is noticed, remembered and accepted, shaping the conclusion that follows.

Searching for a counterexample can be especially useful for a broad claim such as “always”. One well established exception challenges that exact wording. A more limited claim may survive, so update the scope of the belief alongside your confidence in it.

Full visual explanation

Challenging a belief is useful when the quality and relevance of all evidence are assessed consistently.

• APA Dictionary: Confirmation bias

How easily an example comes to mind can influence a frequency estimate, with wider records supplying another basis.

Ease of recall can sometimes track real frequency because repeated events create many memory traces. Its accuracy depends on what else influences accessibility. Ask whether the same exposure process makes certain examples especially visible before using recollection as an estimate of prevalence.

Availability can be informative or misleading depending on how memory accessibility relates to actual frequency.

• Tversky and Kahneman: Judgement under uncertainty

A suggested number can become a reference point that continues to influence an uncertain estimate.

Try a measurement-based route: estimate buttons in one layer and multiply by the number of layers. If there are roughly twenty per layer and fifteen layers, the rough estimate is three hundred. Each assumption can be checked separately from the suggested starting value.

An initial value can contain useful information, such as the last measured weight of an object. The issue is how much influence that value deserves given current evidence. Identify why the anchor is relevant and update when measurements or circumstances differ.

Anchoring strength varies with task, knowledge and how the starting value is introduced.

• APA Dictionary: Anchoring bias

Presentation can change which part of equivalent information receives attention and influences a decision.

A denominator is the total being counted. Eight out of ten and eighty out of one hundred describe the same share. Translate both frames into ten coloured squares so you can inspect the quantity directly before deciding what it means for the task.

A frame can also contain new information, such as a different timeframe or hidden condition. Check equivalence carefully. If two descriptions refer to different groups or consequences, a changed judgement may reflect those real differences alongside any presentation effect.

Full visual explanation

Effects depend on the decision, wording and context, and apparently similar descriptions may contain different information.

• Tversky and Kahneman: Framing decisions

A possible loss and a comparable gain can receive different weight because they are judged from a reference point.

People’s choices can also reflect need, uncertainty or the usefulness of what is at stake. Losing the only available umbrella in rain has practical consequences that gaining a spare umbrella may not match. Check these differences before assigning the whole response to loss aversion.

Loss aversion varies across contexts and people, and a universal fixed multiplier oversimplifies the evidence.

• APA Dictionary: Behavioural economics

Social norms guide behaviour through shared expectations, visible examples and perceptions of what a group approves.

The relevant group matters. A visitor may follow the habits of close friends more strongly than those of strangers. When explaining a behaviour, identify who the person uses as a reference and how accurately they perceive that group’s actual behaviour and approval.

Norms vary across groups and contexts, and people can misperceive what others actually do or approve.

• OpenStax: Conformity and social influence

Attribution connects an observed action with a possible cause, and better evidence can change that connection.

The fundamental attribution error describes a tendency, observed in some contexts, to place too much weight on personal characteristics when explaining others’ behaviour. Cultural and situational variation matters. Use the idea to prompt investigation of context before settling on a causal account.

Attribution patterns vary across contexts and cultures, and motives often remain uncertain.

• OpenStax: Social psychology and attribution

Metacognition uses information about one’s own thinking to adjust confidence and guide what happens next.

Create a small table with question, confidence and result. Across repeated attempts, inspect whether your confident answers are usually correct. Also check whether you can tell which answers are stronger within the same session. These are related aspects of monitoring your own thinking.

A person can be highly confident overall yet still recognise which of their answers are more reliable. Researchers distinguish confidence level, sensitivity to correct versus incorrect judgements and calibration. Keeping those distinctions visible makes self-assessment more informative than one global confidence score.

Metacognitive accuracy can vary across tasks, and introspection alone leaves important blind spots.

• Fleming and Lau: Measuring metacognition

A clear explanation builds manageable relationships on what the learner already understands.

A worked example shows the steps of a solution while you learn how the pieces connect. Next, hide one step and complete it yourself. Gradually removing support can move practice from following a model towards reconstructing the process with greater independence.

Knowledge changes the effective size of a task. An experienced reader treats a familiar word as a unit, while a beginner may work through individual letters. Teaching therefore needs a suitable starting point, with support adjusted as those separate pieces become connected and familiar.

Instructional effects depend on prior knowledge and task, and excessive guidance can become less useful as expertise grows.

• Van Merriënboer and Sweller: Cognitive load and instruction

What stands out can reflect a person’s interests while remaining a partial view of both observer and observed.

Ideas from Shahzad Ali · What I notice

Personal reflection supplied by Shahzad on 18 September 2026, edited for clarity in the linked Journal entry. The visual examples and connections are editorial explanations.

“You see what you are” is a phrase Shahzad uses to reflect on his own interests and desires. His point about depth invites looking beyond the first visible detail. A person’s worth or depth cannot be measured from a single observation.

Folk, Remington and Johnston’s laboratory experiments found that cues drew attention differently depending on the visual feature participants were seeking. Applying this finding to social impressions is an everyday illustration with a much broader setting.

Anderson, Laurent and Yantis found that previously rewarded visual features could attract attention in a later task. Goals and learned associations are among the influences on attention.

Attention reflects several influences. Observing what someone notices supplies a small part of the evidence about that person.

• Shahzad Ali: What I notice
• Folk, Remington and Johnston, 1992: task goals and attention
• Anderson, Laurent and Yantis, 2011: learned value and attention

Jung’s approach explores how neglected feelings and qualities relate to the identity a person presents and accepts.

Jung proposed a collective unconscious: shared inherited patterns shaping human experience. He called these patterns archetypes and linked them to recurring figures in stories, such as a parent or hero. This remains a theoretical explanation for similarities across cultures.

In Jung's vocabulary, the Self refers to the whole person, including conscious and unconscious experience. Individuation is his account of becoming more connected with this larger whole. He associated it with meaning and personal development.

Researchers within analytical psychology debate how archetypes develop. Christian Roesler's reviews discuss cultural learning and other explanations, and question the scientific support for biologically inherited complex symbolic patterns. A repeated story can have several possible explanations.

A Jungian interpretation offers one possible reading of an experience. Evidence about that person and situation is needed before drawing conclusions about hidden motives.

• ETH Zürich Archives: Carl Gustav Jung, life and work
• Ann Hopwood, Society of Analytical Psychology: Jung's model of the psyche
• Martin Schmidt, Society of Analytical Psychology: individuation and the Self
• OpenStax Psychology 2e: Jung and other neo-Freudians
• Christian Roesler, 2012: scientific questions about inherited archetypes
• Christian Roesler, 2019: developments and controversies in analytical psychology
• Society of Analytical Psychology: the Jungian shadow and persona

Freud’s model interprets behaviour through tensions between wishes, internalised demands and the practical situation.

Freud's approach also described defences: ways the mind manages threatening feelings. Rationalisation means giving an acceptable-sounding explanation for an action while another motive remains outside awareness. Establishing a particular person's motive requires evidence and care.

Freud proposed a sequence of childhood psychosexual stages to explain adult personality. Those specific developmental claims remain scientifically contested. Much of his original theory came from interpretations of individual cases, which makes general claims difficult to establish.

Later psychodynamic approaches changed many of Freud's ideas, often giving relationships greater emphasis. Psychology also studies processes outside awareness using experiments. Each specific claim, including claims about dreams or hidden wishes, needs its own evidence.

Freud's model is historically influential. Its claims vary in evidential support. A convincing interpretation alone leaves several possible explanations for a person's behaviour.

• Freud Museum London: who Sigmund Freud was
• Freud Museum London: the ego, id and superego
• OpenStax Psychology 2e: Freud's historical theory and its limitations
• Robert Bornstein, Adelphi University, Noba: the psychodynamic perspective and research

Adler’s approach connects a person’s goals and sense of capability with belonging and contribution.

Adler's term style of life describes a person's characteristic way of understanding themselves, other people and their goals. He saw these patterns as connected. His school placed encouragement and attention to relationships at the centre of its approach.

Adler also proposed that family position could influence personality. A large 2015 study found little birth-order difference across most broad personality traits. A 2025 study found some associations, with smaller birth-order differences after accounting for family size. These are group averages and leave individual character uncertain.

Individual Psychology considers a person as a connected whole within their social setting. Adler's three life tasks concerned work, friendship and close partnership. His account links personal ambitions with the demands and possibilities of living alongside other people.

Adler's framework offers a historical interpretation of goals and belonging. Family circumstances, culture and evidence about the individual matter when applying any general account.

• Adler University: Alfred Adler's life, social interest and life tasks
• Adler Graduate School: theory and application
• North American Society for Adlerian Psychology: Adler and his theory
• Rohrer, Egloff and Schmukle, 2015: birth order and personality
• Ashton and Lee, 2025: personality, birth order and number of siblings

Different psychological approaches organise attention differently, while explanations and treatment effects need their own evidence.

These schools contain many later developments. A few sentences leave out disagreements within each approach. Modern therapies may draw on several traditions.

NLP also proposes ways to change descriptions and responses. Its own lesson explains the limits of the cited evidence. Shared vocabulary across approaches leaves their effectiveness as a separate research question.

This comparison explains what approaches highlight. Their effectiveness and the accuracy of any interpretation require separate evidence.

• Society of Analytical Psychology: the Jungian shadow and persona
• Freud Museum London: Freud, childhood and unconscious experience
• North American Society for Adlerian Psychology: goals and social context
• NHS: cognitive behavioural therapy

CBT helps a person examine how thoughts, feelings and actions interact, then practise agreed changes.

A pattern can involve bodily sensations as well as thoughts and behaviour. Worry might include a tight chest; avoidance can bring brief relief while leaving the original fear in place.

CBT takes several forms, including individual sessions, groups and supported self-help. Work between sessions often helps a person apply what they learn in daily life.

NICE includes CBT among treatment options for depression. Treatment decisions consider the person's needs, preferences, likely benefits and possible harms. The approach and evidence depend on the condition being treated.

CBT is adapted to the person and condition. Benefits vary, and some people need another approach or additional support.

• NHS: cognitive behavioural therapy, reviewed 28 March 2025
• NHS Every Mind Matters: connections between thoughts, feelings and behaviour
• NICE NG222: depression in adults, treatment recommendations

Specific language can clarify an experience, while NLP’s broader claims require evidence about the particular method and outcome.

The 2012 health review included ten experimental studies. Their small number, varied methods and high or uncertain risk of bias limited what the reviewers could conclude about benefit.

A separate 2012 study tested a popular claim linking eye direction with lying. Across three tests, the predicted pattern failed to gain support. This result concerns that specific claim.

NLP includes varied practices and claims. Evidence about one element has a specific scope. The terms, intervention, outcome and comparison used in a study all matter.

NLP's broad health claims have limited support in the cited review. Clear descriptions, comparison groups and independent replication are needed to establish particular benefits.

• John Grinder: account of NLP's origins and collaboration with Richard Bandler
• Richard Bandler: his account of modelling therapists and developing NLP
• Sturt and colleagues, 2012: systematic review of NLP and health outcomes
• Wiseman and colleagues, 2012: tests of eye movements and lie detection

Bandler’s work proposed describing and transferring patterns of communication, with each claimed effect requiring its own evidence.

The early collaboration helped establish NLP as a named approach. Grinder's account places their joint work in the 1970s and records their partnership ending in 1980.

Bandler later wrote about hypnosis and changing familiar responses. His explanations describe his approach; a proposed mechanism and an observed benefit each require supporting evidence.

Research reviews assess an intervention's outcomes and study quality. The cited 2012 review reported limited evidence for NLP's health benefits.

This profile explains Bandler's role and proposals. The reliability of each technique depends on relevant research, including independent tests and clear outcome measures.

• Richard Bandler: description of his work and early modelling influences
• John Grinder: collaboration with Bandler and NLP's early development
• US National Library of Medicine: The Structure of Magic, authors and 1975 publication record
• Health Communications and Simon & Schuster: Bandler's Guide to Trance-formation, author and book description
• Sturt and colleagues, 2012: systematic review of NLP and health outcomes

Words can guide and share thinking while images, spatial representations and other processes also contribute.

The colour experiment measured speed in a specific matching task. Its result supports an influence of language under those conditions. The effect changed when participants' attention was occupied by a verbal task.

A 2005 study examined three men with severe language difficulties after brain damage. They could still perform many calculations. This shows that important number skills can survive extensive language impairment.

Researchers continue to debate language's roles in development and reasoning. Each proposed influence needs a clearly specified task and context.

The evidence supports specific influences of language alongside thinking abilities that can operate independently. Claims that language determines every possible thought go beyond these findings.

• Winawer and colleagues, 2007: Russian colour words and colour discrimination
• Varley and colleagues, 2005: Agrammatic but numerate, an original study of calculation and language impairment
• Fedorenko, Piantadosi and Gibson, 2024: review of neuroscience evidence on language and thought