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:6/13/2019)... ... June 13, 2019 , ... Global Clinical and ... the end-to-end clinical and ancillary supply chain management needs of large- and middle-market ... organizations, today announced it will sponsor a summer education program offered by the ...
(Date:6/6/2019)... ... June 05, 2019 , ... MedTech Breakthrough , ... health and medical technology market, announced that it has selected Medacta International’s MySpine® ... award in the 2019 MedTech Breakthrough Awards program. , Medacta® ...
(Date:6/4/2019)... MEMPHIS, Tenn. (PRWEB) , ... June 04, 2019 ... ... in contract manufacturing of orthopedic medical devices, today announced Q1-19 revenues of $31M, ... the industry combined with successful roll-out of strategic investments & operational excellence initiatives ...
Breaking Biology News(10 mins):
(Date:5/15/2019)... ... May 16, 2019 , ... ... a result, food and beverage products rely on these ingredients to create stable ... sounding label declarations. This paradigm shift triggers food formulators to seek out alternatives ...
(Date:5/8/2019)... ... ... Standing at 16.2 hands, Atlas is on the large side for a Quarter Horse. ... among other activities. When loping around a corner in late 2017, Atlas tripped and ... to only being able to walk. Fortunately Atlas’ owner, Kelly, sought the opinion of ...
(Date:5/4/2019)... ... May 03, 2019 , ... Diopsys Inc, the world ... Negative Response vision test, a new full field electroretinography (ffERG) protocol designed ... 6.3 million Americans will have glaucoma, with black Americans having the highest prevalence ...
(Date:5/2/2019)... ... ... Stay on top of current hot topics through free webinars presented by leading ... free, so be sure to register today to save your place! Participate in the ... our upcoming webinars: , CLINICAL TRIALS , May 7 – Oncology Clinical Trials – ...
Breaking Biology Technology:
Cached News: