PsychologyUnit 59 min read
Cognition: Thinking, Problem-Solving & Decision-Making
Unit 5 of Psychology explores how humans process information—attention, problem-solving, decision-making, language, and cognitive biases—linking theory to real-world tech and business applications like AI, eSewa, and Daraz.
TAKEAWAYS:
- Cognition is the mental process of acquiring, storing, and using knowledge (perception, attention, memory, language, problem-solving).
- Problem-solving uses algorithms (step-by-step) or heuristics (mental shortcuts), but biases (e.g., confirmation bias) can distort decisions.
- Language is a cognitive tool: Chomsky’s theory explains innate grammar, while Whorf’s hypothesis links language to thought.
- Decision-making is influenced by emotions (amygdala) and logic (prefrontal cortex), seen in Ncell’s tariff choices or Daraz’s discount psychology.
- Cognitive biases (e.g., anchoring, availability) explain why users trust eSewa’s reviews or ignore NEPSE’s volatility.
- AI mimics cognition: Chatbots use rule-based systems (like early GPS navigation) or machine learning (like YouTube’s recommendation engine).
What Is Cognition?
Cognition is the mental process of acquiring, storing, transforming, and using information. It includes:
- Perception (interpreting sensory input)
- Attention (focusing on relevant stimuli)
- Memory (encoding, storing, retrieving)
- Language (symbolic communication)
- Problem-solving (finding solutions)
- Decision-making (choosing actions)
Why it matters: Cognition shapes how we interact with technology (e.g., designing intuitive apps) and make life choices (e.g., investing in NEPSE).
1. Attention: Selecting What to Process
Attention is the cognitive filter that prioritizes information. Types:
- Selective attention: Focusing on one task (e.g., ignoring traffic while driving in Kathmandu).
- Divided attention: Multitasking (e.g., texting while walking—risky!).
- Sustained attention: Long-term focus (e.g., studying for TU exams).
How it works: The cocktail party effect (Cherry, 1953) shows we filter irrelevant noise (e.g., hearing your name in a crowded room). The spotlight model (Posner) explains how attention shifts like a searchlight.
Real-world example:
- Pathao drivers use selective attention to navigate traffic while tracking orders.
- WhatsApp notifications use visual cues (vibrations, colors) to grab attention.
2. Problem-Solving: From Algorithms to Heuristics
Problem-solving is cognitive effort to reach a goal. Two main strategies:
| Algorithm | Heuristic |
|---|---|
| Step-by-step, guaranteed solution (e.g., math formulas) | Mental shortcuts (faster but error-prone) |
| Example: GPS route calculation | Example: "If it’s raining, take the bus" |
| Pros: Accurate, reliable | Pros: Quick, energy-efficient |
| Cons: Time-consuming | Cons: Biases, mistakes |
Common heuristics (and biases):
- Availability heuristic: Judging probability by ease of recall (e.g., fearing plane crashes after news coverage).
- Representativeness heuristic: Stereotyping (e.g., assuming a quiet person is shy).
- Anchoring: Relying too heavily on the first piece of information (e.g., Daraz’s "original price" vs. discount).
Worked example: A Daraz seller lists a phone for ₹50,000 but marks it as "₹60,000 (20% off)."
- Anchoring bias: Buyers focus on ₹60,000, not the actual value.
- Cognitive shortcut: They perceive ₹50,000 as a "great deal" without comparing other sites.
3. Decision-Making: Logic vs. Emotion
Decisions involve rational (prefrontal cortex) and emotional (amygdala) systems. Models:
- Dual-process theory (Kahneman):
- System 1: Fast, automatic (e.g., recognizing a friend).
- System 2: Slow, effortful (e.g., calculating loan interest).
- Prospect theory (Kahneman & Tversky): People prefer avoiding losses over gaining equivalent rewards (e.g., NEPSE investors panicking during drops).
Real-world ties:
- Ncell tariff choices: Users weigh data limits (logic) vs. peer pressure (emotion).
- eSewa payments: Fear of fraud (amygdala) vs. convenience (prefrontal cortex).
mindmap
root((Decision-Making))
Factors
Logic["Prefrontal Cortex\n(Weighs pros/cons)"]
Emotion["Amygdala\n(Fear, excitement)"]
Biases
Loss Aversion["Prefer avoiding losses\n(e.g., NEPSE sell-offs)"]
Sunk Cost Fallacy["Continuing failed investments\n(e.g., Daraz seller holding stock)"]
Models
Dual-Process["System 1 vs. System 2"]
Prospect Theory["Losses loom larger than gains"]4. Language: The Cognitive Tool
Language is a symbolic system that shapes thought. Key theories:
- Chomsky’s Universal Grammar: Humans are born with a "language acquisition device" (LAD) for grammar rules.
- Whorf’s Linguistic Relativity: Language influences thought (e.g., multiple words for snow in Inuit languages affect perception).
Components of language:
- Phonemes: Smallest sound units (e.g., "b" vs. "p" in "bat" vs. "pat").
- Morphemes: Meaningful units (e.g., "un-" in "unhappy").
- Syntax: Rules for word order (e.g., Nepali SOV vs. English SVO).
- Semantics: Meaning of words/sentences.
Real-world example:
- Google Translate uses algorithms to map phonemes/syntax but struggles with idioms (e.g., "kick the bucket").
- Nepali vs. English: Nepali’s context-dependent grammar (e.g., verb endings for subject) reflects cultural communication styles.
5. Cognitive Biases in Tech and Business
Biases distort judgment. Examples in Nepal’s digital economy:
| Bias | Example | Impact |
|---|---|---|
| Confirmation bias | eSewa users trusting 5-star reviews | Overestimating product quality |
| Anchoring | Daraz’s "original price" displays | Inflating perceived savings |
| Availability | Fear of cybercrime after news | Avoiding online banking |
| Framing effect | "90% fat-free" vs. "10% fat" | Influences food/drink choices |
Worked example: NEPSE investors see a stock drop from ₹500 to ₹400.
- Loss aversion: They panic-sell, worsening the drop.
- Hindsight bias: Later, they claim they "knew it would crash."
In the Real World
eSewa’s Trust System:
- Uses social proof (reviews) and anchoring (showing "₹X saved") to reduce cognitive load in payments.
- Why it works: Nepalis trust peer recommendations (availability heuristic) over cold data.
Pathao’s Dynamic Pricing:
- Adjusts fares based on supply/demand heuristics (like Uber).
- Cognitive link: Riders accept higher prices during peak hours due to loss aversion (fear of missing the ride).
Ncell’s Tariff Confusion:
- Overlapping plans exploit choice overload (too many options paralyze decision-making).
- Solution: Simplified menus use chunking (grouping similar plans) to reduce cognitive strain.
YouTube’s Algorithm (Global):
- Uses availability heuristic: Shows trending videos first, reinforcing what’s easily recalled.
- Nepali example: Political news dominates feeds during election seasons.
Khalti’s Security Warnings:
- Uses framing: "Your money is safe" (positive) vs. "Hackers target weak passwords" (negative).
- Psychology: Negative frames trigger stronger emotional responses (amygdala activation).
Exam Tip
- Define and differentiate:
- Distinguish algorithms (e.g., GPS routes) vs. heuristics (e.g., "if it’s raining, take the bus").
- Compare Chomsky’s LAD vs. Whorf’s linguistic relativity.
Apply to real scenarios:
- Problem-solving: Explain how a Daraz seller uses heuristics to set prices.
- Biases: Analyze why NEPSE investors make irrational decisions (loss aversion, hindsight bias).
- Language: Relate Chomsky’s theory to how Google Translate fails with Nepali grammar.
Diagrams are key:
- Draw dual-process theory (System 1 vs. System 2) for decision-making.
- Sketch attention models (spotlight, filter) for perception questions.
Common pitfalls:
- Don’t confuse memory (Unit 4) with cognition (this unit). Focus on processing, not storage.
- Avoid vague answers like "people think differently." Specify how (e.g., "due to anchoring bias").
Case study practice:
- Question: "How does eSewa use cognitive principles to encourage payments?"
- Answer:
- Anchoring: Shows "₹X saved" to highlight discounts.
- Social proof: Displays "10,000+ users trusted" to reduce risk perception.
- Simplification: Limits steps in the payment flow to reduce cognitive load.
Visual Summary:
Based on the TU BIT syllabus for Psychology (PSY359), unit 5.
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