What you'll learn
This topic examines the relationship between language, thought and communication, exploring how humans convey meaning through verbal and non-verbal channels. You'll study key theories about language development, the influence of language on thinking, and the various forms of communication we use daily. This unit is essential for understanding how psychological processes shape our ability to express ideas and interact with others.
Key terms and definitions
Piaget's theory — the view that language depends on thought; children must first develop cognitive structures before they can use language to express concepts.
Sapir-Whorf hypothesis — the theory that language determines or influences how we think; the language we speak shapes our perception of reality.
Non-verbal communication (NVC) — conveying messages without words through body language, facial expressions, gestures, eye contact, posture and tone of voice.
Paralinguistics — vocal features that accompany speech but are not words themselves, including pitch, tone, volume, tempo and pauses.
Von Frisch's bee study — research demonstrating that honeybees use a 'waggle dance' to communicate the location and distance of food sources to other bees in the hive.
Open and closed questions — open questions allow detailed, expansive answers (e.g., "How do you feel?"); closed questions produce brief, specific responses (e.g., "Are you happy?").
Eye contact — direct visual contact between two people; its function varies across cultures and contexts, signalling attention, dominance, attraction or respect.
Personal space — the physical distance individuals maintain between themselves and others; varies by relationship type, culture and situation.
Core concepts
The relationship between language and thought
Two major theoretical positions explain how language and thought relate:
Piaget's view: thought comes before language
- Children develop cognitive understanding first, then acquire language to label existing concepts
- Language reflects underlying cognitive development
- Evidence: children worldwide reach language milestones at similar ages, regardless of the language they learn
- Example: a child understands object permanence before learning the word "hide"
Sapir-Whorf hypothesis: language shapes thought
- The language we speak influences how we perceive and categorise the world
- Strong version (linguistic determinism): language determines thought completely
- Weak version (linguistic relativity): language influences thought to some degree
- Evidence: Inuit languages have multiple words for snow, potentially affecting how speakers perceive snow
Evaluation of the theories:
- Research by Carmichael et al. (1932) showed that labelling ambiguous figures influenced how participants later recalled them, supporting Sapir-Whorf
- However, the theory doesn't account for translation between languages or universal concepts understood across all cultures
- Piaget's theory is supported by developmental milestones but doesn't explain individual differences in language acquisition
- Most psychologists now accept that language and thought interact bidirectionally rather than one completely determining the other
Differences between human and animal communication
Human language possesses unique characteristics that distinguish it from animal communication systems:
Characteristics of human language:
- Displacement — ability to discuss things not present in time or space (past events, hypothetical situations, abstract concepts)
- Creativity — infinite combinations of words to create novel sentences never heard before
- Structure — complex grammar rules that create meaning through word order and syntax
- Cultural transmission — language passed between generations through learning, not just instinct
Animal communication examples:
Von Frisch's bee study (1967):
- Honeybees perform a waggle dance on the honeycomb to communicate food location
- The dance angle indicates direction relative to the sun
- Dance duration communicates distance from the hive
- This is sophisticated but lacks displacement (only communicates immediate food sources) and creativity (fixed patterns)
Vervet monkey alarm calls:
- Different alarm calls for different predators (eagles, leopards, snakes)
- Appropriate escape responses triggered by specific calls
- Limited vocabulary and no grammatical structure
- Cannot combine calls to create new meanings
Key difference: Animal communication is largely stimulus-bound (responding to immediate environment), while human language can discuss abstract concepts, hypotheticals and distant events.
Types of non-verbal communication
Non-verbal communication conveys meaning without words and often reveals more than verbal messages:
Eye contact:
- Functions: showing attention, regulating conversation turn-taking, expressing intimacy or aggression
- Cultural variations: direct eye contact shows respect in Western cultures but may be considered rude in some Asian and Caribbean cultures
- Argyle and Dean (1965) found people maintain less eye contact when discussing intimate topics
- Too much eye contact can be perceived as threatening; too little suggests disinterest or dishonesty
Body language:
- Posture — open postures (uncrossed arms/legs) suggest receptiveness; closed postures indicate defensiveness or discomfort
- Gestures — hand/arm movements that illustrate speech (e.g., indicating size) or replace words (e.g., thumbs up)
- Orientation — facing someone directly shows engagement; angling away suggests desire to leave
- Mehrabian (1971) suggested body language contributes 55% to overall communication impact (though this figure is often oversimplified)
Personal space:
- Hall (1966) identified four distance zones in Western culture:
- Intimate distance (0-45cm): close relationships only
- Personal distance (45cm-1.2m): friends and family
- Social distance (1.2-3.6m): acquaintances and colleagues
- Public distance (3.6m+): formal situations
- Violations of expected personal space create discomfort or anxiety
- Cultural variations: Latin American and Middle Eastern cultures typically use closer distances than Northern European cultures
Touch (haptics):
- Communicates affection, support, dominance or aggression
- Highly culturally regulated
- Gender differences: women generally use supportive touch more than men in Western cultures
Paralinguistics:
- Tone of voice can completely change meaning ("That's great" said sarcastically vs. genuinely)
- Volume indicates emotion intensity or confidence
- Pitch rises when asking questions in English
- Pauses create emphasis or indicate uncertainty
Functions of eye contact
Eye contact serves multiple psychological and social functions:
Regulating flow of conversation:
- Speaker looks away when beginning to speak
- Speaker makes eye contact when finishing, signalling turn-taking
- Listener maintains more eye contact than speaker
- Kendon (1967) demonstrated these systematic patterns in conversation
Signalling attention and interest:
- Maintaining eye contact shows active listening
- Looking away suggests boredom or distraction
- Teachers use this to assess student engagement
Expressing intimacy:
- Prolonged mutual gaze between romantic partners
- Mothers and infants engage in extended eye contact during bonding
- Argyle and Dean's equilibrium theory: eye contact and physical proximity balance to maintain comfortable intimacy level
Displaying dominance or aggression:
- Prolonged staring asserts dominance
- Looking away first indicates submission
- Animals also use direct eye contact as threat displays
Individual and cultural differences:
- Autism spectrum conditions often associated with reduced eye contact
- Western cultures: direct eye contact = honesty and confidence
- Some Asian, African and Caribbean cultures: direct eye contact with elders/authority = disrespect
- Gender differences: women typically maintain more eye contact than men in Western societies
The role of questions in communication
Questions perform essential functions in gathering information and shaping interactions:
Open questions:
- Allow respondent freedom in answering
- Produce detailed, qualitative information
- Examples: "How did you feel about the exam?" "What happened yesterday?"
- Advantages: rich, detailed data; respondent can raise unexpected issues
- Disadvantages: time-consuming to answer and analyse; potential for irrelevant information
Closed questions:
- Restrict possible answers to limited options
- Examples: "Did you pass the exam?" "Are you 16 or 17?"
- Advantages: quick to answer; easy to quantify responses; good for collecting specific facts
- Disadvantages: may miss important information; can seem interrogative; no opportunity for elaboration
Application in different contexts:
Clinical/therapeutic settings:
- Therapists use open questions to encourage clients to explore feelings
- Example: "Can you tell me more about that experience?" rather than "Were you sad?"
Research interviews:
- Structured interviews use closed questions for standardised, comparable data
- Unstructured interviews use open questions for exploratory research
- Semi-structured interviews combine both types
Police questioning:
- Cognitive interview technique emphasises open questions to reduce leading
- Closed questions may inadvertently suggest answers
- Example: "What did the person look like?" (open) vs. "Was the person tall?" (closed, potentially leading)
Educational settings:
- Teachers use open questions to assess understanding depth
- Closed questions check factual knowledge
- Balance needed to maintain engagement and assess different cognitive levels
Worked examples
Question 1: Outline one difference between human language and animal communication. [2 marks]
Mark scheme answer: Human language demonstrates displacement [1 mark], meaning humans can discuss things not present such as past events or hypothetical future situations, whereas animal communication systems like the honeybee waggle dance only communicate immediate environmental information [1 mark].
Alternative acceptable answer: Human language shows creativity/productivity [1 mark] as humans can generate infinite novel sentences never heard before by combining words in new ways, whereas animal communication consists of fixed signals that cannot be combined to create new meanings [1 mark].
Question 2: Explain how eye contact can be used to regulate conversation. [3 marks]
Mark scheme answer: Eye contact helps manage turn-taking in conversations [1 mark]. Research by Kendon found that speakers typically look away when they begin speaking and then make eye contact when finishing to signal the other person can take their turn [1 mark]. The listener maintains more eye contact than the speaker throughout the conversation, showing they are paying attention and ready to respond [1 mark].
Question 3: Evaluate the Sapir-Whorf hypothesis. [6 marks]
Mark scheme answer: The Sapir-Whorf hypothesis proposes that language influences or determines thought [1 mark]. Supporting evidence comes from Carmichael et al.'s study where participants shown ambiguous figures were influenced by the labels given when later recalling the images, suggesting language shaped their perception and memory [1 mark]. Additionally, different languages categorise colours differently and speakers of these languages show differences in colour discrimination tasks [1 mark].
However, the strong version (linguistic determinism) is difficult to support because translation between languages is possible, suggesting concepts exist independently of specific words [1 mark]. Furthermore, people with aphasia (language impairment) can still think and solve problems, demonstrating thought can occur without language [1 mark]. Cross-cultural research shows that certain concepts like basic emotions are universal across cultures with very different languages, suggesting some thinking is independent of language [1 mark].
Common mistakes and how to avoid them
Confusing Piaget's and Sapir-Whorf's positions — Remember: Piaget says thought comes first, then language; Sapir-Whorf says language shapes thought. Use the mnemonic "P before L" (Piaget: thought before language).
Describing animal communication as 'language' — Animal communication systems lack key features of human language (displacement, creativity, complex structure). Always refer to animal "communication" not "language" unless explicitly comparing the differences.
Stating Mehrabian's percentages without context — Don't claim "93% of communication is non-verbal" as a universal fact. Mehrabian's research applied to specific situations involving emotional attitudes; verbal content becomes more important when communicating factual information.
Ignoring cultural context in NVC questions — Always consider cultural variations when discussing non-verbal communication, particularly eye contact and personal space. What's appropriate in UK culture may differ in Caribbean, Asian or other cultural contexts.
Providing only one-sided evaluations — When asked to "evaluate" or "assess," always include both strengths/supporting evidence AND limitations/contradictory evidence. Aim for balance in 4-6 mark questions.
Confusing open/closed questions — An open question cannot be answered with just "yes/no" or a single word. "Do you like psychology?" is closed; "What do you like about psychology?" is open.
Exam technique for "Language, Thought and Communication"
Command words matter: "Outline" requires brief description without detail (1-2 marks per point). "Explain" requires detail about how/why (2-3 marks). "Evaluate/Assess" requires analysis of strengths AND weaknesses with evidence (typically 4-6 marks).
Use research evidence strategically: Name researchers and briefly describe findings to support points (e.g., "Von Frisch demonstrated..." or "Kendon's research showed..."). This gains creditworthiness marks in extended answers.
Structure evaluation answers using PEC: Point (state the evaluation point), Evidence (research/example supporting it), Comment (explain why this strengthens/weakens the theory). This ensures depth and gains full marks.
Apply concepts to scenarios: Question stems often present scenarios (e.g., a job interview, classroom situation). Explicitly apply your knowledge to the specific context given rather than writing generic answers.
Quick revision summary
Language and thought interact bidirectionally: Piaget argued thought precedes language, while Sapir-Whorf proposed language shapes thought. Human language differs from animal communication through displacement, creativity and complex structure. Non-verbal communication includes eye contact (regulating conversation, showing attention, expressing emotion), body language, personal space and paralinguistics. Eye contact functions vary culturally. Open questions produce detailed responses; closed questions give specific answers. Understanding these concepts helps explain how humans convey meaning through multiple channels in social interactions.