휴대폰 진동이 울렸다고 느꼈는데 실제로 진동하지 않은 경우는 없나요?

나는 주로 핸드폰을 주로 진동을 해놓고 있는다.
그런데 가끔 핸드폰이 떨었다고 생각하고 핸드폰을 보면
전화나 문자가 오지않은 경우가 있었다.

혹시 핸폰이 망가졌나 싶었었는데
이런 것을 나만 느끼는게 아니였나보다.

이런 일부 핸폰 유저가 경험한 이런 것의
메커니즘이 해명되었다고 한다.

밑의 기사에 의하면 휴대폰이 실제로 떨지않는데
떨었다고 느껴지는 감각에 빠지는 것은 "phantom vibration syndrome"이라고
부른다고 한다.

이것은 캐나다의 Steven Garrity라는 28살의 웹 개발자가
실제로 그런 경험을 하고서 연구를 시작했다.
이 사람은 자신의 경험을 블로그에 썼을 때
30명 이상 같은 경험을 했다는 이야기를 들었다고 한다.

그래서 크리블랜드 대학 병원에 행동 의학 프로그램의 책임자인
Jeffrey Janata에 의하면 휴대전화 이용자가 진동에 대해
신경을 많이 쓰고 있을 때에 이런 경험을 하기 쉽다고 한다.

이것은 휴대전화 이용자가 진동하는 감각을 규칙적인 경험을
하는 것으로 뇌가 그 감각을 학습하기 때문이라고 한다.

또 일리노이 대학의 감각/지각 교수인 Alejandro Lleras에 의하면
진동을 인식하는 것을 배우는 것은 지각의 학습 프로세스의 일부라고 한다.
결국 핸드폰이 진동하는 것에 반응 하는 것을 뇌가 습관화하고
학습화하는 것에 의해 진동하는 감각에 민감하게된 결과
실제로 진동하지 않았어도 핸드폰이 진동했다고 느께게 된다고 한다.

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나만 그런지 알았는데 다른 사람들도 이런것을 느끼고 있었네...
앞으로는 혹시나 하는 것을 블로그에 글을 써야겠다.
그런데 문제는 내 글을 얼마나 봐주느냐가 문자겠지만...
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원문
http://www.usatoday.com/news/health/2007-06-12-cellphones_N.htm?csp=34

Good vibrations? Bad? None at all?

By Angela Haupt, USA TODAY Some call it "phantom vibration syndrome." Others prefer "vibranxiety" — the feeling when you answer your vibrating cellphone, only to find it never vibrated at all. "It started happening about three years ago, when I first got a cellphone," says Canadian Steven Garrity, 28, of Charlottetown, Prince Edward Island. "I'd be sitting on the couch and feel my phone start to vibrate, so I'd reach down and pull it out of my pocket. But the only thing ringing was my thigh." Though no known studies have analyzed what may cause spontaneous buzzing, anecdotes such as Garrity's ring true with the public. Spurred by curiosity, Garrity, a Web developer, described the recurring false alarms on his blog. The response was not imaginary: More than 30 cellphone users reported that they, too, experienced phantom vibrations. "I ended up hearing from a lot of people who said, 'Hey, the exact same thing happens to me,' " Garrity says. "And it was somewhat comforting, because it made me think I wasn't insane, after all." Some who experienced recurring phantom vibrations wondered whether the phenomenon had physical roots: Was it caused by nerve damage or muscle memory? But experts say the false alarms simply demonstrate how easily habits are developed. Psychologically, the key to deciphering phantom vibrations is "hypothesis-guided search," a theory that describes the selective monitoring of physical sensations, says Jeffrey Janata, director of the behavioral medicine program at University Hospitals in Cleveland. It suggests that when cellphone users are alert to vibrations, they are likely to experience sporadic false alarms, he says. "You come armed with this template that leads you to be attentive to sensations that represent a cellphone vibrating," Janata says. "And it leads you to over-incorporate non-vibratory sensations and attribute them to the idea that you're receiving a phone call." Alejandro Lleras, a sensation and perception professor at the University of Illinois at Urbana-Champaign, adds that learning to detect rings and vibrations is part of a perceptual learning process. "When we learn to respond to a cellphone, we're setting perceptual filters so that we can pick out that (ring or vibration), even under noisy conditions," Lleras says. "As the filter is created, it is imperfect, and false alarms will occur. Random noise is interpreted as a real signal, when in fact, it isn't." Phantom cellphone vibrations also can be explained by neuroplasticity — the brain's ability to form new connections in response to changes in the environment. When cellphone users regularly experience sensations, such as vibrating, their brains become wired to those sensations, Janata says. "Neurological connections that have been used or formed by the sensation of vibrating are easily activated," he says. "They're over-solidified, and similar sensations are incorporated into that template. They become a habit of the brain." Cellphone company spokesmen, meanwhile, say they are not aware of any consumer complaints about phantom vibrations. Cellphones cannot sporadically vibrate on their own, says Mark Siegel of AT&T, formerly Cingular Wireless. "Perhaps in the mind of the cellphone user only," he says. But Rob Whitehouse, vice president of communications at University Hospitals, insists the phantom vibrations he experiences each day are simply proof of how important constant communication is. "It's some psychological expression of my need to always be connected," he says. "It's like when e-mail first came out, and we constantly checked our inboxes, because getting a new message was so exciting. "I like that better than 'I'm crazy,' anyway."