抓

抓是人類的一種手部動作，當人類用手抓時手指會彎曲。握手就是人類做出抓這個動作時的一個例子^[1]。當婴儿16周时他們就會抓取某些物體^[2][3]。6岁时，孩子们就可以學習如何使用书写工具，這方面其實也涉及抓這一動作。 ^[4]

对于新生儿来说，抓是一种本能反应。

参考文献

1. Bertenthal, Bennett; Hofsten, Claes von. Eye, Head and Trunk Control: The Foundation for Manual Development1The responsibility was shared equally between the authors.1. Neuroscience & Biobehavioral Reviews. 1998, 22 (4): 515–520. doi:10.1016/s0149-7634(97)00038-9.
2. Kuhtz-Buschbeck, J. P.; Boczek-Funcke, A.; Illert, M.; Joehnk, K.; Stolze, H. Prehension movements and motor development in children. Experimental Brain Research. September 1999, 128 (1–2): 65–68. ISSN 0014-4819. PMID 10473741. doi:10.1007/s002210050818.
3. Zeng, Nan; Ayyub, Mohammad; Sun, Haichun; Wen, Xu; Xiang, Ping; Gao, Zan. Effects of Physical Activity on Motor Skills and Cognitive Development in Early Childhood: A Systematic Review. BioMed Research International. 2017, 2017: 1–13. ISSN 2314-6133. PMC 5745693 . PMID 29387718. doi:10.1155/2017/2760716 （英语）.
4. "The Development of Coordination for Reach-to-Grasp Movements in Children", Journal of Experimental Brain Research (2002) 146: 142-154, doi: 10.1007/s00221-002-1156-z