Monday, October 21, 2013

Sensation - How the Ear works

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.

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 - 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.  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? 

Wednesday, October 16, 2013

Animations about vision - the retina and visual pathways

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

Pay close attention to the "center-surround" aspects of retinal processing it this first video.

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. 

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. 

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:

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

Wednesday, October 2, 2013

Discovering Psychology Videos - Biological Bases of Behavior

While these videos are slightly dated, they are still a great overview of the biological basis of behavior.

These are the third and fourth videos in the Discovering Psychology series. Short descriptions and links to the videos can be found below. They are from the series website.

Would you let this man handle your brain? 

3. The Behaving Brain  
This program discusses the structure and composition of the brain: how neurons function, how information is collected and transmitted, and how chemical reactions determine every thought, feeling, and action. With Dr. John Gabrieli of Stanford University and Dr. Mieke Verfaellie of Veterans Medical Hospital, Boston, Massachusetts. Updated. View it here. 

4. The Responsive Brain 
How the brain controls behavior and, conversely, how behavior and environment influence the brain's structure and functioning are the focus of this program. With Dr. Michael Meaney of McGill University and Dr. Russell Fernald of Stanford University. Updated. View it here.