HOME >> BIOLOGY >> NEWS
Brain has center for detecting sound motion

Close your eyes and acutely listen to the sounds around you, and you'll find you're able not only to accurately place the location of sounds in space, but their motion. Imagine then that, strangely, you suddenly became unable to distinguish the motion of sounds, even while you retained the ability to pinpoint their location. That's exactly the experience of a patient reported by Christine Ducommun and her colleagues, who used studies of the patient to demonstrate conclusively for the first time that the brain has a specialized region for processing sound motion.

While it was known that the visual system has a specialized region for perceiving motion, it wasn't known whether the auditory system has such a region--or whether sound location and motion are processed by the same circuitry. Previous studies of the capabilities of brain-damaged patients had found only that both their location and motion processing abilities were impaired, and animal and human neuroimaging studies had not been able to conclusively tease apart the two abilities.

Ducommun and her colleagues discovered the region by studying a woman who was to be operated on to alleviate intractable temporal lobe epilepsy. The operation would involve the removal of the affected regions of the right anterior temporal lobe and the right posterior superior temporal gyrus (STG).

Perceptual tests before the operation showed her ability to perceive sound location and motion to be normal. In those tests, the researchers played white noise through headphones and simulated movement of the noise source, asking the patient to detect the noise location and how it seemed to be moving. The patient could also identify sounds such as a piano, dog, water, sneezing, and a saw.

Also, the researchers electrically stimulated the brain region to be removed--using electrodes already in place to monitor epileptic activity. They found that such stimulation of the right posterior STG led the patient to r
'"/>

Contact: Heidi Hardman
hhardman@cell.com
617-397-2879
Cell Press
15-Sep-2004


Page: 1 2

Related biology news :

1. Brains reward circuitry revealed in procrastinating primates
2. Brain serotonin enzyme finding might explain psychiatric disorders
3. Brain development and puberty may be key factors in learning disorders
4. Organization for Human Brain Mapping 2004 Annual Meeting
5. Brain disease research, particle physics meet in the middle (ware)
6. Brain control
7. Brain cells become more discriminating when they work together
8. Brain signal predicts working memory prowess
9. Brain areas identified that decode emotions of others
10. Brain Centre gives Wales a world lead
11. AAAS hosts Battle of the Brains to choose area student for international competition

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


(Date:6/23/2020)... ... June 23, 2020 , ... In its June 22 online post, ... Dr. James L. Sherley, M.D., Ph.D., founder and director of stem cell biotechnology company ... on June 16 that starting July 5 it would begin offering free ...
(Date:6/19/2020)... ... June 18, 2020 , ... Join experts from Envigo Lauren ... a live webinar on Wednesday, July 8, 2020 at 11am EDT (4pm ... genetically engineer new models. However, while modifying the genome may be more straightforward, the ...
(Date:6/11/2020)... ... 09, 2020 , ... Superior Controls, Inc. , an E Technologies Company ... the life sciences industry, is pleased to announce the recent hiring of Ray Boudreau, ... Seabrook, New Hampshire office. In his new role, Boudreau will use his extensive ...
Breaking Biology News(10 mins):
(Date:6/23/2020)... ... June 22, 2020 , ... Regen Suppliers, the one ... includes buy three, get the fourth unit free with no limit on the ... known as exosomes, have been a game changer for regenerative therapies. The products ...
(Date:6/23/2020)... ... June 23, 2020 , ... Nobilis Therapeutics, ... that it has filed an Investigational New Drug application (IND) with the U.S. ... its lead drug candidate NBTX-001 in patients with panic disorder (PD). , "Adding ...
(Date:6/11/2020)... ... June 08, 2020 , ... Greffex, ... through the use of proprietary clean viral vectors, recently announced a key manufacturing ... Greffex’s platform is the world’s most successful gene therapy delivery vehicle (vector) ...
(Date:6/11/2020)... (PRWEB) , ... June 09, 2020 , ... ... the release of the NEON Micro-Tracer Solution, a highly accurate, contact ... COVID-19 virus in the workplace. Contact tracing, a core disease control measure, is ...
Breaking Biology Technology:
Cached News: