Cognitive psychology

Definition

The study of mental processes that select, hold, transform, and retrieve information.

You cannot hold everything. So the system selects. What it selects feels like reality. Biases are often adaptations that misfire in evaluative modern environments.

In simple terms

Your mind has a small desk. Whatever is on the desk runs the next hour. Cognitive psychology studies the desk, the filing cabinet, and the shortcuts.

Scientific explanation

Working-memory models and attention research are core. Prospect theory sits at the decision edge. Rumination is a way of occupying the desk with distress.

What research shows

Capacity limits and patterned decision biases are among the most replicated ideas in the field.

What the research does not prove

That knowing the names of biases removes them.

What remains uncertain

How to train transferrable “debiasing” in messy life remains harder than laboratory demonstrations.

Practical implications

Offload the desk: write, time-box, reduce cues. Name a shortcut only to create a pause.

Educational only — not a diagnosis, not a treatment plan, not a crisis service.

Related mechanisms

• working memory
• selection
• heuristics