Navigation Links
Study: Brain makes call on which ear is used for cell phone
Date:2/21/2012

DETROIT - If you're a left brain thinker, chances are you use your right hand to hold your cell phone up to your right ear, according to a new study from Henry Ford Hospital in Detroit.

The study finds a strong correlation between brain dominance and the ear used to listen to a cell phone, with more than 70 percent of participants holding their cell phone up to the ear on the same side as their dominant hand.

Left brain dominate people those whose speech and language center is on the left side of the brain are more likely to use their right hand for writing and other everyday tasks.

Likewise, the Henry Ford study shows most left brain dominant people also use the phone in their right ear, despite there being no perceived difference in their hearing in the left or right ear. And, right brain dominant people are more likely to use their left hand to hold the phone in their left ear.

"Our findings have several implications, especially for mapping the language center of the brain," says Michael Seidman, M.D., FACS, director of the division of otologic and neurotologic surgery in the Department of Otolaryngology-Head and Neck Surgery at Henry Ford.

"By establishing a correlation between cerebral dominance and sidedness of cell phone use, it may be possible to develop a less-invasive, lower-cost option to establish the side of the brain where speech and language occurs rather than the Wada test, a procedure that injects an anesthetic into the carotid artery to put half of the brain to sleep in order to map activity."

Dr. Seidman notes that the study also may offer additional evidence that cell phone use and brain, and head and neck tumors may not be linked.

If there was a strong connection, he says there would be a far more people diagnosed with cancer on the right side of their brain, head and neck the dominate side for cell phone use. But it's likely that there is a time and "dose-dependence" to the development of tumors, he notes.

Study results will be presented Feb. 26 in San Diego at the 25th Mid-Winter Meeting of the Association for Research in Otolaryngology.

The study began with the simple observation that most people use their right hand to hold a cell phone to their right ear. This practice, Dr. Seidman says, is illogical since it is challenging to listen on the phone with the right ear and take notes with the right hand.

To determine if there is an association between sidedness of cell phone use and auditory or language hemispheric dominance, the Henry Ford team developed a online survey using modifications of the Edinburgh Handedness protocol, a tool used for more than 40 years to assess handedness and predict cerebral dominance.

The Henry Ford survey included questions about which hand was used for tasks such as writing; time spent talking on cell phone; whether the right or left ear is used to listen to phone conversations; and if respondents had been diagnosed with a brain or head and neck tumor.

It was distributed to 5,000 individuals who were either with an otology online group or a patient undergoing Wada and MRI for non-invasive localization purposes. More than 700 responded to the online survey.

On average, respondents' cell phone usage was 540 minutes per month.

The majority of respondents (90 percent) were right handed, 9 percent were left handed and 1 percent was ambidextrous.

Among those who are right handed, 68 percent reported that they hold the phone to their right ear, while 25 percent used the left ear and 7 percent used both right and left ears. For those who are left handed, 72 percent said they used their left ear for cell phone conversations, while 23 percent used their right ear and 5 percent had no preference.

The study also revealed that having a hearing difference can impact ear preference for cell phone use.

In all, the study found that there is a correlation between brain dominance and laterality of cell phone use, and there is a significantly higher probability of using the dominant hand side ear.


'/>"/>

Contact: Krista Hopson
khopson1@hfhs.org
313-874-7207
Henry Ford Health System
Source:Eurekalert  

Related medicine news :

1. Study: Choice between stroke-prevention procedures influenced by patient age
2. UNC study: Obese 3-year-olds show early warning signs for future heart disease
3. New Study: Improved Immune System with Gene-Eden, a Natural Antiviral Supplement that Targets Chronic Viruses
4. Henry Ford Hospital study: Shoulder function not fully restored after surgery
5. Study: Federal funds support health depts., but leadership is key
6. Study: Kidney disease a big risk for younger, low-income minorities
7. Study: Mechanomyography to be accurate in detecting nerves during minimally invasive spine surgery
8. Study: Low Levels of Vitamin D Linked to Higher Rates of Asthma in African American Kids
9. Study: Child health may suffer in strong economy
10. Study: Social influence playing role in surging autism diagnoses
11. Children's Rights Group Agrees with New Study: Infant Circumcision Causes 100 Deaths Each Year in US
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Study: Brain makes call on which ear is used for cell phone
(Date:6/24/2017)... , ... June 24, 2017 , ... The weather is ... time outdoors. Home and business owners should be aware that the summer months provide ... In fact, mechanical locks and keys can be negatively affected from direct exposure to ...
(Date:6/23/2017)... ... June 23, 2017 , ... The Rhode ... of Care Management Alerts and Dashboards, an innovative new service enabling healthcare providers ... RIQI’s Care Management Alerts and Dashboards provide near real-time data about patients admitted ...
(Date:6/23/2017)... ... June 23, 2017 , ... By scoring 100% for fiscal management and accountability, ... premier online charity evaluator, Charity Navigator, validating ANRF's work as a top charity in ... by Charity Navigator and earns ANRF a spot on their “ 10 Charities Worth ...
(Date:6/23/2017)... ... ... Studies show evidence that carotenoids and antioxidants derived either from the diet ... , But how often do ophthalmologists and optometrists in Sweden recommend the use of ... with early symptoms of AMD? A study published recently in Dove Medical ...
(Date:6/23/2017)... ... June 23, 2017 , ... Dr. Ran Y. Rubinstein ... recently begun offering three new minimally invasive procedures to patients who want a ... downtime, Dr. Rubinstein is excited to bring microneedling, microneedling facials, and platelet rich ...
Breaking Medicine News(10 mins):
(Date:6/7/2017)... 2017  Diplomat Specialty Infusion Group, a brand of Diplomat Pharmacy, ... Iowa location. The ... features an ISO 7 cleanroom—the standard needed to compound intravenous (IV) ... level of pollutants. "Our new ... better serve our Iowa patients," said ...
(Date:6/1/2017)... , June 1, 2017 Nutriceutical Holdings ... Veterinarian Recommended Solutions (VRS), and KD Pharma Group have ... Nutriceutical Holdings by KD Pharma Group. KD Pharma Group ... the option to acquire the entire company. ... KD. They are committed to growing the NH companies ...
(Date:5/26/2017)... 26, 2017  Endo International plc (NASDAQ: ENDP ... CEO, will represent the Company in a fireside chat at ... Tuesday, June 13, 2017 at 10:40 a.m. PT / 1:40 ... in Rancho Palos Verdes, CA. ... will be available on the Company,s website at http://www.endo.com/investors/overview ...
Breaking Medicine Technology: