Under the surface, the brain seethes with undiscovered activity

Movies capture the visual elements that are present in the real world. For instance, as Keanu's hand moves across the screen for a karate chop, the image of the hand and all the lines and color it represents moves across a viewer's visual realm essentially the same way it would in real life. By contrast, the enlarged static--blocks of random black and white--has no such motion. Weliky was able to graph the movie-motion statistically, showing essentially how objects move in the visual field.

The test was then to see if there was any relationship between the statistical motion of the movie and the way visual neurons in the ferrets fired. Each visual neuron is keyed to respond to certain visual elements, such as a vertical line, that appears in a specific area of the ferret's vision. A great number of these cells combine to process an image of many lines, colors, etc. By watching the patterns of how these cells fired while watching The Matrix, Weliky could describe the pattern statistically, and match those statistics of how the ferret responded to the film with the statistics of the actual visual aspects of the film.

Weliky found two surprises. First, while the neurons of adult ferrets statistically seemed to respond similarly to the statistics of the film itself, younger ferrets had almost no relationship. This suggests that though the young ferrets are taking in and processing visual stimuli, they're not processing the stimuli in a way that reflects reality.

"You might think of this as a sort of dyslexia," explains Weliky. "It may be that in very young brains, the processing takes place in a way that's not necessarily disordered, but not analogous to how we understand reality to be. It's thought that dyslexia works somewhat like this--that some parts of the brain process written words in an unusual way and seem to make beginnings of words appear at their ends and vice versa. Infant brains may see the entire world the same way, as a mass of d

Contact: Jonathan Sherwood
University of Rochester

Page: 1 2 3 4

Related medicine news :

1. Understanding how vulnerabilities may keep women in abusive relationships
2. From town planning to intimate sex: Understanding the risks in our lives
3. Understanding how prostaglandin prevents gut injury during radiation therapy
4. Undertreatment spurs new arrests among drug ofenders diverted under Californias Proposition 36
5. Understanding epilepsy
6. The long view: Understanding why cancer strikes late
7. Understanding the autoimmune response in type 1 diabetes
8. Understanding nerve degeneration in spastic paraplegia
9. Understanding how lymph nodes respond to infection may redefine how immune system functions
10. Understanding Alzheimers disease: Animal research points to new direction for therapy
11. Understanding genetic cancer risk might not help smokers kick the habit

Post Your Comments:

(Date:10/12/2017)... ... 12, 2017 , ... The company has developed a suite ... regulatory authorities worldwide. From Children’s to Adults 50+, every formula has been developed ... , These products are also: Gluten Free, Non-GMO, Vegan, Soy Free, Non-Dairy*, ...
(Date:10/12/2017)... ... ... The American College of Medical Informatics (ACMI) will present the 2017 Morris ... of AMIA’s Annual Symposium in Washington, D.C. AMIA’s Annual Symposium is taking ... in the field of medical informatics, this prestigious award is presented to an individual ...
(Date:10/12/2017)... ... October 12, 2017 , ... Information ... we intend to develop to enable prevention of a major side effect of ... loss, especially in pediatric patients. For cisplatin, hearing loss is FDA listed on-label ...
(Date:10/12/2017)... ... ... HMP , a leader in healthcare events and education, today announced that ... for ‘Best B-to-B Healthcare Website.’ Winners were announced during the Eddie & Ozzie Awards ... recognizes editorial and design excellence across a range of sectors. This year’s program included ...
(Date:10/12/2017)... Wesley Chapel, FL (PRWEB) , ... October 12, 2017 , ... ... Chapel is holding a treadmill relay – Miles by Moonlight to raise money for ... by donating $300 or more. , Teams will work together to keep their ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... , Oct. 2, 2017  Eli Lilly and Company ... results for the third quarter of 2017 on Tuesday, ... call on that day with the investment community and ... The conference call will begin at 9 a.m. ... access a live webcast of the conference call through ...
(Date:9/28/2017)... Cohen Veterans Bioscience and Early Signal Foundation ... and home sensors for real-time monitoring of patients with ... nonprofit organization focused on disruptive health solutions for rare ... system to record and integrate behavioral, cognitive, physiological and ... ...
(Date:9/23/2017)... 22, 2017 Janssen Biotech, Inc. (Janssen) announced ... from the U.S. Food and Drug Administration (FDA) for ... for the treatment of moderately to severely active rheumatoid ... data are needed to further evaluate the safety of ... RA. "We ...
Breaking Medicine Technology:
Cached News: