# Why do we see illusions?

- Institution: TED
- Department: TED-Ed
- Speaker: Mark Changizi
- Year: 2013
- Level: For everyone
- Language: English
- Subjects: Biology, Psychology and the brain
- Source: [TED](https://www.ted.com/talks/mark_changizi_why_do_we_see_illusions)
- Licence: [CC BY-NC-ND 4.0](https://creativecommons.org/licenses/by-nc-nd/4.0/) (Non-commercial use only, and no changed versions.)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Why can't our extremely complex eyes render simple optical illusions? Surprise, surprise -- it comes back to the brain, which has only evolved to encounter natural stimuli. At TEDYouth 2012, Mark Changizi explains how the brain reckons with optical illusions.\[Directed by TED Media\].

## Lectures

1. [Why do we see illusions?](https://invisiblenetwork.ai/learn/ted/mark_changizi_why_do_we_see_illusions/21b907c6843d), 8 min (TED's player)