CogScale

A JavaScript library for cognitive scaling functions that model human perception and decision-making.

Installation

npm install cogscale

Usage

const cogScale = require('cogscale');

// 1. Prospect Theory
// Models how people perceive gains and losses
const gain = cogScale.prospectTheory(100);  // gain of 100
const loss = cogScale.prospectTheory(-100); // loss of 100

// 2. Power Area Scale
// Useful for visual area perception scaling
const scaledArea = cogScale.powerAreaScale(0.5); // scale value between 0 and 1

// 3. Weber-Fechner Law
// Models perception of changes in physical stimuli
const perception = cogScale.weberFechner(100);

API

prospectTheory(x, alpha = 0.88, beta = 0.88, lambda = 2.25)

Implements Prospect Theory's value function where:

• x: input value (positive for gains, negative for losses)
• alpha: risk aversion parameter for gains
• beta: risk aversion parameter for losses
• lambda: loss aversion parameter

powerAreaScale(x, a = 0.6)

Implements power law scaling for area perception where:

• x: input value between 0 and 1
• a: power exponent (default: 0.6)

weberFechner(x, k = 1)

Implements Weber-Fechner Law where:

• x: input value
• k: scaling factor

License

MIT