Department of Anatomy & Neurobiology, Dalhousie University, Halifax, Nova Scotia, Canada.
Laterality. 2012;17(2):169-79. doi: 10.1080/1357650X.2010.551126. Epub 2011 Jul 14.
We investigated via a survey the relationship between hand clasping, arm folding, and handedness. We aimed to provide new data on degree of preference for each of these lateralities. We also examined the relative importance of thumb position versus interdigitisation of the fingers in determining one's comfort in a hand-clasping position. We explored this in the context of the fact that sensory acuity is greater for the thumb than other fingers, suggesting that preference for how the fingers are intermeshed may be more influenced by thumb than finger position. Lastly we performed an exploratory analysis to determine if self-reported menstrual phase-known to influence turning bias-also influences hand clasping, arm folding or the strength of one's handedness. Our study suggests that lateral preferences for hand clasping, arm folding, and handedness are independent. However, the degrees of lateral preference for hand clasping and arm folding are correlated. Our exploration of the relative importance of thumbs versus fingers to hand clasping revealed some trends that were not statistically significant, but worth future exploration. Our data on menstrual phase showed a reduced strength of preference for arm folding in mid-luteal females versus non-mid-luteal females.
我们通过调查研究了握手、抱臂和利手之间的关系。我们旨在提供关于这些侧性偏好程度的新数据。我们还研究了在确定一个人在握手位置的舒适度时，拇指位置与手指交叉的相对重要性。我们探讨了这样一个事实，即拇指的感觉敏锐度比其他手指高，这表明手指交叉的偏好可能更多地受到拇指位置而不是手指位置的影响。最后，我们进行了探索性分析，以确定自我报告的月经周期（已知会影响转向偏好）是否也会影响握手、抱臂或手的惯用程度。我们的研究表明，握手、抱臂和惯用手的侧性偏好是独立的。然而，握手和抱臂的侧性偏好程度是相关的。我们对手指和拇指对手握的相对重要性的探索揭示了一些没有统计学意义的趋势，但值得进一步研究。我们关于月经周期的数据显示，与非中期女性相比，中期女性对手臂折叠的偏好强度降低。
