Sherwood N, Griffin M J
Institute of Sound and Vibration Research, The University, Highfield, Southampton, England.
Aviat Space Environ Med. 1990 Dec;61(12):1092-7.
An experiment has been conducted to investigate the effects of whole-body vibration on cognitive performance independent of the direct mechanical action of vibration on vision and manual control. Sixteen subjects completed a short-term memory task (memory scanning) during exposure to 16 Hz sinusoidal whole-body vibration at four magnitudes: 0, 1.0, 1.6, and 2.5 ms-2 r.m.s. The results show a detrimental effect of vibration on performance when measured by mean reaction time (p less than 0.001) and number of attentional lapses (p less than 0.01). Response errors rose significantly during the 1.0 ms-2 r.m.s. condition alone. The data suggest that vibration disrupts central cognitive mechanisms utilized during the processing of information in short-term memory, although compensatory cognitive procedures may exist to minimise these effects.
已开展一项实验，以研究全身振动对认知表现的影响，该影响独立于振动对视觉和手动控制的直接机械作用。16名受试者在暴露于16赫兹正弦全身振动时完成了一项短期记忆任务（记忆扫描），振动幅度有四个水平：0、1.0、1.6和2.5米每二次方秒均方根值。结果显示，以平均反应时间（p<0.001）和注意力 lapses 的数量（p<0.01）衡量时，振动对表现有不利影响。仅在1.0米每二次方秒均方根值条件下，反应错误显著增加。数据表明，振动会干扰短期记忆信息处理过程中使用的中枢认知机制，尽管可能存在补偿性认知程序以将这些影响降至最低。
