HOME >> BIOLOGY >> NEWS
First impressions: Computer model behaves like humans on visual categorization task

Computers can usually out-compute the human brain, but there are some tasks, such as visual object recognition, that the brain performs easily yet are very challenging for computers. The brain has a much more sophisticated and swift visual processing system than even the most advanced artificial vision system, giving us an uncanny ability to extract salient information after just a glimpse that is presumably too fleeting for conscious thought. To explore this phenomenon, neuroscientists have long used rapid categorization tasks, in which subjects indicate whether an object from a specific class (such as an animal) is present or not in the image.

Now, in a new MIT study, a computer model designed to mimic the way the brain itself processes visual information performs as well as humans do on rapid categorization tasks. The model even tends to make similar errors as humans, possibly because it so closely follows the organization of the brain's visual system.

"We created a model that takes into account a host of quantitative anatomical and physiological data about visual cortex and tries to simulate what happens in the first 100 milliseconds or so after we see an object," explained senior author Tomaso Poggio of the McGovern Institute for Brain Research at MIT. "This is the first time a model has been able to reproduce human behavior on that kind of task." The study, issued on line in advance of the April 10, 2007 Proceedings of the National Academy of Sciences (PNAS), stems from a collaboration between computational neuroscientists in Poggio's lab and Aude Oliva, a cognitive neuroscientist in the MIT Department of Brain and Cognitive Sciences.

This new study supports a longheld hypothesis that rapid categorization happens without any feedback from cognitive or other areas of the brain. The results also indicate that the model can help neuroscientists make predictions and drive new experiments to explore brain mechanisms involved in hum
'"/>

Contact: Laurie Ledeen
ledeen@mit.edu
617-324-0134
McGovern Institute for Brain Research
2-Apr-2007


Page: 1 2 3 4

Related biology news :

1. First case of successful ovarian tissue transplantation between two, nonidentical sisters
2. First new multiple sclerosis gene found in 30 years
3. First genome-wide study of infectious disease opens new avenues for HIV treatment, vaccines
4. First all-African produced genetically engineered maize is resistant to maize streak virus
5. First baby is born after oocytes were matured in the lab and frozen
6. First confirmed common genetic risk factors for breast cancer
7. First demonstration of new hair follicle generation in an animal model
8. First research to show that diabetes damages DNA in mens sperm and may affect fertility
9. First demonstration of muscle restoration in an animal model of Duchenne muscular dystrophy
10. First systematic study of Chinas one-child policy reveals complexity, effectiveness
11. First international conference on self-healing materials

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/20/2017)... 20, 2017 Delta (NYSE: DAL ) customers now ... aircraft at Reagan Washington National Airport (DCA). ... Delta launches biometrics to board aircraft at ... Delta,s biometric boarding pass experience ... is now integrated into the boarding process to allow eligible Delta SkyMiles ...
(Date:5/16/2017)... TEANECK, N.J. , May 16, 2017  Veratad ... leading provider of online age and identity verification solutions, ... the K(NO)W Identity Conference 2017, May 15 thru May ... Ronald Regan Building and International Trade Center. ... across the globe and in today,s quickly evolving digital ...
(Date:4/18/2017)... Calif. , April 18, 2017  Socionext Inc., a global ... of a media edge server, the M820, which features the company,s ... recognition software provided by Tera Probe, Inc., will be showcased during ... at the NAB show at the Las Vegas ... ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... BioMedGPS announces ... addition of its newest module, US Hemostats & Sealants. , SmartTRAK’s US Market ... hemostats, fibrin sealants, synthetic sealants and biologic sealants used in surgical applications. BioMedGPS ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... analysis platform specifically designed for life science researchers to analyze and interpret ... Rosalind Franklin, who made a major contribution to the discovery of the ...
(Date:10/11/2017)... ... October 11, 2017 , ... The CRISPR-Cas9 ... overexpression experiments and avoiding the use of exogenous expression plasmids. The simplicity of ... performing systematic gain-of-function studies. , This complement to loss-of-function studies, such as ...
(Date:10/11/2017)... USA (PRWEB) , ... October 11, 2017 , ... ComplianceOnline’s ... take place on 7th and 8th June 2018 in San Francisco, CA. The Summit ... as well as several distinguished CEOs, board directors and government officials from around the ...
Breaking Biology Technology:
Cached News: