李雪静

The rise of smart phones has been blamed for a plenty of social ills， and your smart phone may also be making you physically sick.

A condition called “cyber sickness” has been identified by scientists， which is said to be the digital version of motion sickness. It affects up to 80 per cent of the population who own smart phones or tablets， which leads to the feelings of nausea2 and unsteadiness.

Cyber sickness typically occurs during or after immersion3 in a virtual environment， which is believed to occur primarily as a result of conflicts between three sensory systems： visual， vestibular4 and proprioceptive5. It is caused by seeing fast motion on a screen and covers anything from a car chase in a film to scrolling6 through web pages on your phone.

The more realistic the visual content is， the higher your chances of getting cyber sickness are.

It can also be caused by factors related to the use of virtual reality equipment （e.g. heaviness of the helmet， closeness of screen to the eyes）. It is probable that these side effects are also connected to the tiredness due to the movements.

The condition was identified in a piece in the New York Times in which British and US experts said that it needed handling.

Motion sickness leaves sufferers feeling ill because they feel movement in your muscles and your inner ear but do not see it.

The mismatch in digital sickness is the opposite—you see movement on the screen but do not feel it.

The effect is the same， includes a headache， wanting to throw up， confusion and the need to sit down.

Often cyber sickness emerges in a subtle way and sufferers put it down to stress or eyestrain7.

Some studies that have been carried out into cyber sickness found that women are more susceptible8 than men， the New York Times reported.

Those who are confident are more likely to suffer from cybersickness as well. Among those who have reported experiencing the condition have been video gamers who spend hours playing fast paced games. Film viewers have struggled with some scenes in action movies which have quick cuts and fast editing.

Engineers at a virtual head set manufacturer， have admitted that cyber sickness is one of their biggest problems.

移動电话的广泛使用被指引发了诸多社会弊端，不仅如此，手中的智能机也会造成你的身体不适。

科学家们把这种状态称为“晕屏”，是晕车的电子版。80%的智能手机和平板用户会晕屏，他们会有恶心、眩晕的感觉。

晕屏症典型地发生在人正处于或脱离了一个虚拟环境之后，据说主要是人的三个感官系统——视觉，平衡和本体系统之间产生不协调而造成的。

造成晕屏的原因是浏览了含移动内容的屏幕，可能是看了有追车镜头的电影，也可能是浏览了手机上滚动的内容页。

视觉内容越真实，晕屏的发生率就越高。

晕屏症也可能由虚拟现实设备的使用的相关因素（如：头盔的重压，眼睛与屏幕过近的距离）引起的，这些副作用还可能与昏睡综合症（因动作而产生的疲劳）有关。

《纽约时报》的一篇文章报道了这种症状。英美专家在文章中称，这个问题需要着手解决。

晕动症会令患者感到肌肉和内耳在移动，但实际上并没有看到它们在移动。

而晕屏症恰恰相反——你看到屏幕在移动，实际上却感受不到。

二者的影响却是相同的，如：头疼、想吐、思绪混乱，需要静坐下来。

晕屏症状通常不易察觉，患者会以为是因为压力大或者视觉疲劳引起的。

《纽约时报》称，一些有关晕屏的研究发现，女性比男性更容易晕屏。

性格果断自信的人，也更容易晕屏。有晕屏症状的通常是连续几小时玩快节奏视频游戏的玩家。电影的观众在看到快速剪辑和切换的镜头时会不舒服。

一家虚拟实境游戏头戴式耳机制造公司的工程师们坦言，晕屏也是他们面临的最大问题之一。