Cognitive Psychology × UX

CognEats

Think less. Taste more.

A food-ordering app designed by applying cognitive psychology to every interface decision — attention, perception, emotion, memory, motivation and trust — to make choosing food feel effortless, appetizing and confident.

UI / UX Designer
Behavioural Design
Visual Identity
Interaction Design
12 psychological principles applied
CognEats splash screen — chef-hat logo, warm burger imagery and the Think less, Taste more slogan
Gestalt Closure
A hat and moustache, no face needed
Scroll
Project Overview & Goal

Good interface design should align with how people think, feel, remember and choose.

Instead of designing only for visual appearance, every major interface element in CognEats was connected to a psychological principle — reducing cognitive effort, guiding attention, building trust, and encouraging users to complete and repeat an order.

Project Goal

Notice important information quickly

Avoid feeling overwhelmed by too many choices

Compare meals easily

Feel confident about price, quality, hygiene and delivery

Complete checkout with less anxiety

Remember previous meals and return to order again

My Role

I worked on this project as a UI/UX designer applying cognitive psychology to digital-product design.

Studying relevant psychological theories

Translating each theory into interface decisions

Designing the CognEats visual identity

Designing the food-ordering user journey

Creating splash, home, menu, product, cart, checkout, success and past-order screens

Explaining the psychological reasoning behind each interaction

Design Process

Theory in, behaviour out.

Psychological theoryBehavioural interpretationInterface decisionUser interactionEmotional / cognitive outcome
Worked ExampleChoice overloadToo many options increase mental effortGroup meals and recommend selected itemsUser compares fewer optionsFaster, more confident decision

Decision Psychology Flow

StimulusAttentionPerceptionSchema ActivationAttitudeDecisionAction

The interface continuously triggers appetite, focuses attention, reduces cognitive effort, activates familiar schemas, builds trust, and supports confident decision-making.

Psychological Principles Used

Twelve theories, one ordering flow.

01

Selective Attention

Strong contrast on primary content; visual priority for food imagery and the main CTA.

Users quickly know where to look and what to do next.

02

Affective Priming

Pumpkin orange as dominant accent; large warm food images; rounded, friendly shapes.

Triggers appetite, warmth and a positive desire to explore food.

03

Gestalt Principles

Grouped content, repeated card shapes, white space, figure-ground contrast, closure in the logo.

Users understand the interface quickly without examining every element.

04

Distinctiveness Effect

High-quality photography, consistent orange brand colour, a recognizable chef-hat logo.

The app and its food choices become more memorable.

05

Cognitive Load Theory

Clear hierarchy, smaller information chunks, a multi-step checkout, minimal cart layout.

Users can decide without feeling overwhelmed.

06

Choice Overload & Decision Fatigue

Categorized items, recommended dishes, popular / top-rated labels, "For You" sections.

Users decide what to eat more quickly.

07

Dual-Process Theory

System 1 via photography, colour, badges and animation; System 2 via price, ingredients, nutrition.

Balances emotional attraction with rational confidence.

08

Subjective Norms

Star ratings, reviews, "Most Ordered", "Popular" and "Top Rated" labels, testimonials.

Social approval reduces uncertainty and builds trust.

09

Associative Learning & Schema

Repeated orange, consistent icons and navigation, familiar categories, repeated card styles.

The app becomes easier to learn and remember.

10

Operant Conditioning

Order-success animations, confirmation messages, coupon feedback, "Order Again" buttons.

Users feel rewarded and are encouraged to return.

11

Anchoring & Framing

Price ranges, "Most Popular" reference points, discounts framed against normal prices.

Users feel more confident about value.

12

Risk Minimization & Trust Cues

Hygiene icons, health labels, delivery estimates, payment-security icons, trusted-user messages.

Users feel the food and payment process are trustworthy.

Colour & Logo Psychology

A palette built to trigger appetite.

#F97316

Pumpkin Orange

RGB 249, 115, 22

Warmth, hunger, energy, excitement, fast emotional engagement — supports affective priming and System 1 decision-making.

#FAF0E6

Linen

RGB 250, 240, 230

Calmness, cleanliness, comfort and reduced visual fatigue — a soft background for food imagery and orange accents.

#FFFFFF

White

RGB 255, 255, 255

Readability, figure-ground separation and clarity — helps important elements stand out.

Logo & Gestalt Closure

The CognEats logo shows only a chef's hat and moustache — deliberately leaving out the rest of the face.

This applies the Gestalt principle of closure: the user mentally completes the missing facial features, making the symbol simple, recognizable, memorable, food-related and psychologically engaging.

🧑‍🍳

A hat, a moustache, and the mind fills in the rest.

The Ordering Journey

Eight screens, one psychological arc.

01

Stage

Splash

Appetite & welcome

02

Stage

Home

Discovery without overload

03

Stage

Menu

Fast comparison

04

Stage

Product

Emotion meets reason

05

Stage

Cart

Reassurance & commitment

06

Stage

Checkout

Predictability & trust

07

Stage

Success

Reward & relief

08

Stage

Past Orders

Memory & repetition

Screen 01 — Splash
CognEats splash screen annotated with affective priming and Gestalt simplicity callouts

First impression, first appetite.

The splash screen introduces the CognEats brand and immediately creates an appetite-related emotional response — the user feels hungry, welcomed and ready to explore.

Affective Priming

Warm orange and food imagery trigger appetite and emotional attraction.

Gestalt Simplicity

A small number of clear elements makes the screen easy to understand.

Selective Attention

The logo, food image, slogan and primary action receive visual priority.

Affective Conditioning

Repeated brand colours and food cues build an association with enjoyable food.

Screen 02 — Home

Discovery without overload.

The home screen organizes categories, recommendations, and top restaurants so users can scan, compare and select food with less mental effort.

Gestalt Similarity & Proximity

Related content — categories, recommendations, restaurants — appears in clear groups.

Priming & Associative Activation

Familiar preferences guide personalized "For You" recommendations.

Theory of Reasoned Action

Ratings and popular labels provide social proof.

Anchoring

Price ranges give the user a reference point for judging value.

CognEats home screen annotated with Gestalt grouping, priming and anchoring callouts
Screen 04 — Product

Emotion meets reason.

The product screen combines emotional attraction with detailed rational information — attractive enough to want, informative enough to trust.

CognEats product screen variants annotated with risk minimization and multi-attribute evaluation callouts

Affective Priming

The main food image creates appetite and emotional attraction.

Risk Minimization

Health and hygiene information reduces uncertainty.

System 1 & System 2

The image supports fast emotional judgement; details support rational evaluation.

Multi-Attribute Attitude Model

Users evaluate taste, price, nutrition, ingredients and hygiene together.

Subjective Norms

Reviews and testimonials show social approval.

Screen 05 — Cart

Reduce anxiety, support commitment.

The cart keeps only essential information visible so the user understands the total cost and feels comfortable continuing to checkout.

Cognitive Load Theory

Only essential information is shown in a clean, minimal layout.

Knowledge Function of Attitude

A transparent price breakdown supports informed evaluation.

Cognitive Dissonance Reduction

Positive microcopy like "Top Rated" reassures users about their choice.

Positive Reinforcement

Discounts and coupons reward the user and motivate checkout completion.

CognEats cart screen annotated with cognitive load and positive reinforcement callouts
Screen 06 — Checkout

Predictable steps, visible trust.

Checkout is divided into smaller steps to reduce perceived complexity — the user always knows where they are and why the process is safe.

CognEats checkout screens annotated with perceived control, social proof and framing callouts

Perceived Control & Predictability

A progress tracker shows where the user is and what remains.

Peripheral Cue Processing

Security and payment icons provide fast, non-verbal reassurance.

Social Proof

"Trusted by 10,000+ users" increases confidence in the platform.

Anchoring & Framing

The total price is expressed so its value is easier to interpret.

Screen 07 — Payment Success
CognEats payment success screen annotated with classical conditioning and perceived control callouts

Rewarding the completed behaviour.

The success screen rewards the user's completed purchase — confetti, confirmation and a clear next step leave the user feeling relieved, rewarded and confident.

Classical Conditioning

Positive animation and feedback connect purchasing with a rewarding emotional experience.

Associative Network Theory

Repeated brand language and confirmation messages strengthen brand memory.

Perceived Control

The Track Order button gives continued visibility and control.

Screen 08 — Past Orders

Remember, and return.

The past-orders screen supports recognition, memory and repeat purchasing — users remember previous meals and reorder with minimal effort.

Schema Consistency

The familiar layout reduces relearning and reinforces the brand's cognitive framework.

Multi-Store Memory & Retrieval Cues

Food images help users recall previous experiences from long-term memory.

Operant Conditioning

The "Order Again" button makes repetition convenient and rewarding.

CognEats past orders screen annotated with schema consistency, memory retrieval and operant conditioning callouts

Key Learning & Reflection

Meaningful design doesn't come from visuals alone.

This project reinforced that meaningful design also comes from understanding how people focus, feel, remember and decide. By applying these ideas intentionally, CognEats became more than a visually appealing interface — it became a decision-support experience designed around how people naturally think, feel and choose.

How people focus attention

How emotions influence decisions

How memory is formed

How familiar patterns reduce effort

How users judge risk

How social proof affects trust

How rewards encourage repeat behaviour

Final Project Statement

CognEats is a psychology-driven food-ordering concept that uses cognitive science to reduce mental effort, increase trust, stimulate appetite, and support confident decisions — an experience designed to help users think less, feel more confident, and enjoy choosing food.

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