Unit 06 Ch.05 Perception

Hank explains the distinction between sensation and perception... Thanks Hank!



See how top-down processing affects perception... Can you count how many passes the white-shirted players make in this basketball video? (It's on YouTube, so it may not work in school. You can get to it at home on this link http://youtu.be/IGQmdoK_ZfY if the embedded video doesn't work)




Which way is this dancer spinning?



Clockwise or counter clockwise?
This site shows you how the illusion works http://ofb.net/~whuang/imgs/spin/

Which is the front and which is the back of the Necker Cube? It gets really interesting when you add a dog and a scuba diver... (click here)
http://dogfeathers.com/java/necker.html

Subliminal messages? How effective are they?
Democrats accused Republicans of putting a subliminal message into this Bush campaign commercial? Do you think it was intentional? Do you think it would have an effect? Click here if the embedded video isn't working http://youtu.be/2NPKxhfFQMs



The incredible Color Constancy Illusion... https://www.youtube.com/watch?v=hvgOOKBvyQU


These "TED Talks" can give us great insights into attention and color perception.

Cognitive Scientist Beau Lotto studies color perception in humans and bees.
Here is the link if the embedded video isn't working for you. http://www.ted.com/talks/beau_lotto_optical_illusions_show_how_we_see.html



Apollo Robbins is a skilled pick-pocket who shows us a thing or two about attention.
Link: http://www.ted.com/talks/apollo_robbins_the_art_of_misdirection.html 

Unit 5 Ch. 4 (Part 2) The auditory system

Nobel Prize Website - Games, animations, the story of how the cochlea was unraveled...

The organization that gives out the Nobel Prize has a great website about the ear and how it works.

If you're having trouble understanding the accessory structures and the cochlea this site is for you.

Animations and interactives that explain the ear.

The Sumanas inc. video goes into great detail about the inner ear.
http://www.sumanasinc.com/webcontent/animations/content/soundtransduction.html

Another video on YouTube is great 3D animation that takes you into the ear as if you are a sound wave... it demonstrates the movements in the middle and inner ear with classical music... fantastic piece. The link is at http://youtu.be/PeTriGTENoc - since it's YouTube it may not work at school... 

Hearing Test: You need over-the-ear headphones and a decent computer to use this (not medically accurate) hearing test, but it's interesting to check out even if you don't have the right set-up.   http://youtu.be/h5l4Rt4Ol7M  It is a YouTube video, so it may not work at school. 

Mr. Cantor who was born in 1964 can hear sounds below roughly 14,000 Hz. How about you? 

Unit 5 Ch. 4 (part 1) The Visual System

Fantastic animations about the eye, visual processing in the retina and the pathways that visual information travels in the brain.

This beautiful hand painted animation is a great overview.   https://youtu.be/EskTnxBoPoI

Pay close attention to the "center-surround" aspects of retinal processing in this Web Animation below. The narrator's voice is a bit boring, but it's a great video that explains the whole "center-surround" opponent process thing. 

This animation shows how the photoreceptors, bipolar and ganglion cells of the retina are organized in "center-surround" arrangements that allow "bottom up" processing of visual information to begin in the retina. 

http://www.sumanasinc.com/webcontent/animations/content/receptivefields.html

If a picture is worth a thousand words, an animation is worth way more. This animation really shows the visual pathway very well. Pay attention to how visual information is split in the Optic Chiasm and how it routs through the LGN of the thalamus as well as other areas specifically related to eye movement and the "biological clock" which controls circadian rhythms.

This excellent animation really explains how the visual information from the left and right visual fields makes its way to the right and left occipital lobes via the LGN of the thalamus. 

http://www.sumanasinc.com/webcontent/animations/content/visualpathways.html

Check out this amazingly comprehensive video that covers the visual system in about 10 minutes. It's on YouTube, so it may be hard to watch at school. Link: http://youtu.be/AuLR0kzfwBU

What do you see in the circle?

This site sells glasses that are supposed to correct for some color blindness. I don't know how well they work, but they do have a really nice color blindness test. http://enchroma.com/test/instructions/ 

Do you have "SuperVision? Are you a tetrachromat - a person with 4 

types of cones rather than 3? This website has a test for you. 

Ever wonder what those little blobs floating around your visual field are? They'r caused by shadows of little chunks of debris floating around in the vitreous fluid inside your eye-ball.  This video explains it all: https://www.youtube.com/watch?v=Y6e_m9iq-4Q

And Hank's Crash Course Psychology is always good... 

https://youtu.be/unWnZvXJH2o

The Zimbardo "Discovering Psychology" video on Sensation and Perception can be found at this link. 

http://www.learner.org/resources/series138.html?pop=yes&pid=1504