Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Illusions [Science for Youth]

No description
by

Bethany Hung

on 28 February 2015

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Illusions [Science for Youth]

BUT,
WHY?
STROOP
EFFECT
WHAT HAPPENED?
Brain is arguing with itself
It doesn't know what to do
Color of the word vs the actual word
BLUE
BUT WHY DOES THIS
MATTER
?
ILLUSIONS
Tiffany Huang
Vivian Liu
Science for Youth

WHAT ARE ILLUSIONS?
Illusions happen when something tricks your brain.

The most common type is one that you've probably already seen – called an

optical illusion
.

Let's look at a few!
What does the dictionary say?
Which line looks longer?
Müller-Lyer illusion
What do you see where the white lines cross?
Hermann grid illusion
Crooked, or straight?
café wall illusion
Reverse colors?
Afterimage
Illusion
THERE ARE 100 BILLION NEURONS IN THE HUMAN BRAIN...
"If our brains were simple enough for us to understand them, we'd be so simple that we couldn't."

– Ian Stewart
properties of the optical cortex
visual system is a process of perception and interpretation
random perspective illusions
duck
...or
bunny
?
We are trained to use certain shapes to determine the size of something
This includes triangle brackets: < >
Brain process called
lateral inhibition
Excited brain cells (neurons) prevent other brain cells from being excited
lateral inhibition
BLUE
RED
GREEN
ORANGE
WHITE
RED
YELLOW
BLUE
GREEN
GRAY
BLUE
RED
GREEN
ORANGE
WHITE
RED
YELLOW
BLUE
GREEN
GRAY
Say the
COLOR
of the word, not the actual word
We will time you.
Which one do you think is more important to your brain?
only works when blocks not perfectly lined up
perceived because of the way neurons (especially the ones that respond to orientation) interact
the grey space between the rows of black and white squares is deleted by the brain so you 'see' diagonals
the retina (part of the eye) can tire of a color if exposed for long enough
you will see the complementary color (red <-> green, blue <-> yellow) when exposed to white light
perception is interpretation
knowledge and past experience influences perception
Different, or the same color?
case of experience being used against you
brain believes shadow is being cast over square B, thus B is brighter
Write presentations for elementary school kids about science
Fremont Main Library
Biweekly Fridays -
arrive at 4:15 or sooner
Partnered presentations
10 hours each per presentation!
Full transcript