Navigation Links
Do you hear what i see?

New research pinpoints specific areas in sound processing centers in the brains of macaque monkeys that shows enhanced activity when the animals watch a video.

This study confirms a number of recent findings but contradicts classical thinking, in which hearing, taste, touch, sight, and smell are each processed in distinct areas of the brain and only later integrated. The new research, led by Christoph Kayser, PhD, at the Max Planck Institute for Biological Cybernetics in Tübingen, Germany, was published in the February 21 issue of The Journal of Neuroscience.

"This study confirms that what we used to call the ‘auditory cortex?should really be thought of as much more complex in terms of its response properties," says Robert Zatorre, PhD, head of the auditory cognitive neuroscience laboratory at McGill University. "The textbook-standard view of sensory systems as isolated from one another is no longer tenable." Zatorre did not participate in the study.

Kayser’s team used functional magnetic resonance imaging to draw a map of 11 small, tightly packed fields in the monkeys?auditory cortex that differ by the frequency of sound they process. Scans recorded activity in the monkeys?brains while they watched a video, with and without sound, and listened separately to the accompanying sound. The researchers found that fields in the hindmost part of the auditory cortex showed activity when the monkeys watched the video without sound, and activity was enhanced when the video was presented simultaneously with the sound.

"This finding suggests that sensory integration, which is so fundamental to complex mental activity, takes place at very early processing stages," says Daniel Tranel, PhD, of the University of Iowa, who is not affiliated with the study. "This knowledge could help scientists pinpoint sources of extraordinary sensory processing, such as creativity and genius, as well as abnormal sensory processing, as seen in schizophre nia."

Kayser notes that the findings also could be used to reveal the role of audio-visual integration in communication or to help pin down where sounds are coming from. "Clearly, our acoustical understanding often improves if we can see the lips of the speaker—for example at a crowded cocktail party," he says. "However, currently it is not clear whether and how audio-visual interactions are specialized for the processing of communication signals. "The present study clearly shows where in the auditory system researchers have to focus."
'"/>

Source:Society for Neuroscience


Related biology news :

1. New component of the brakes on nerve regeneration found
2. Strongest proof yet found for prion hypothesis
3. A puzzle piece found in unraveling the wiring of the brain
4. New World founders small in number
5. Norovirus found to cause travelers diarrhea
6. Pair of cancer genes found to drive both cell migration and division
7. Alien woodwasp, threat to US pine trees, found in N.Y.
8. Achilles heel of the herpes virus possibly found
9. Purdue scientists may have found key to halting spinal cord damage
10. Unexpected lock and key mechanism found for the assembly of tumor blood vessels
11. New protein vital for immune response is found in surprise location

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


(Date:1/20/2016)... , Jan. 20, 2016  Synaptics Incorporated (NASDAQ: ... interface solutions, today announced sampling of S1423, its ... wearables and small screen applications including smartwatches, fitness ... Supporting round and rectangular shapes, as well as ... performance with moisture on screen, while wearing gloves, ...
(Date:1/13/2016)... 13, 2016 ... of the  "India Biometrics Authentication & ... (2015-2020)"  report to their offering.  ... announced the addition of the  "India ... Estimation & Forecast (2015-2020)"  report ...
(Date:1/8/2016)... -- NXTD ), a company focused on ... privately held leading direct seller of vacation and entertainment ... company announced that on December 31, 2015, that WorldVentures ... to develop a proprietary new wireless smart card for ... unique smart wallet that serves to securely store all ...
Breaking Biology News(10 mins):
(Date:2/4/2016)... Feb. 4, 2016  CytoSorbents Corporation (NASDAQ: ... its flagship CytoSorb® blood filter to treat deadly ... the world, announced that CEO Dr. Phillip ... Source Capital Group,s 2016 Disruptive Growth & Healthcare ... company.  Conference Presentation Details: ...
(Date:2/4/2016)... Md. , Feb. 4, 2016  Spherix Incorporated ... to the fostering and monetization of intellectual property, today ... and Uniden in the Northern District of ... moving forward.  Inter Partes Re-examination ... U.S. Patent Office.  The IPR was initiated on only ...
(Date:2/4/2016)... Brooklyn, NY (PRWEB) , ... February 04, 2016 , ... ... cuvettes for over 10 years. What sets them apart from other cuvette ... that is posted on their website. On top of this steady flow of ...
(Date:2/3/2016)... 2016 Ascendis Pharma A/S (Nasdaq: ASND ... innovative TransCon technology to address significant unmet medical needs, ... conference.Event:2016 Leerink Partners Global Healthcare Conference Location: , ... 10, 2016 Time:  , 11:55am EST ... An audio webcast of this event will be ...
Breaking Biology Technology: