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Majority Use Cell Phones With Same Ear As Dominant Hand

FRIDAY, May 17 (HealthDay News) -- For most people, the preferred ear for cell phone use correlates with hand dominance, according to a study published in the May issue of JAMA Otolaryngology-Head & Neck Surgery.

Using data from 717 Internet surveys, e-mailed to people in an otology online group, Michael D. Seidman, M.D., from the Henry Ford Health System in Detroit, and colleagues examined whether there is an association between sidedness of cell phone use and auditory hemispheric dominance or language hemispheric dominance.

The researchers found that 90 and 9 percent of respondents were right and left handed, respectively. Of right-handed participants, 68 percent used their cell phone in their right ear, 25 percent in their left ear, and 7 percent had no preference. Of the left-handed respondents, 72 percent used their left ear, 23 percent their right ear, and 5 percent had no preference. Over the previous nine years, cell phone use per person averaged 540 minutes per month.

"An association exists between hand dominance laterality of cell phone use (73 percent) and our ability to predict hemispheric dominance," the authors write. "Our study suggests that auditory hemispheric dominance may differ from language hemispheric dominance owing to the difference in handedness and cell phone ear use."

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