Definition

A device that quickly shows a series of images on a screen to help study how people see, remember, and learn things.

Example

The researcher used a tachistoscope to measure how fast the participants could recognize the images.

Conversation

Have you ever heard of a tachistoscope?

No, I haven't. What is it?

It's a device that shows images really quickly to test how we see and remember things.

That sounds interesting! I’d love to learn more about how it works.

Synonyms & Antonyms

Root Explanation

Tachistoscope → It is formed from "tachy-" (from Greek "tachys", meaning swift or fast) and "-scope" (from Greek "skopein", meaning to look or to examine). The word refers to an instrument used to view images rapidly, thus relating to speed in observation.

Memory Tip

Think of 'swift' ('tachy-') and 'to look' ('-scope') — a tachistoscope is a device that allows you to look at images quickly.

Visually Confused Words