Pub Date : 2018-08-28DOI: 10.4324/9780429467875-10
M. K. Rand, Y. Shimansky
{"title":"Sensorimotor Integration Associated with Transport-Aperture Coordination and Tool-Mediated Reaching","authors":"M. K. Rand, Y. Shimansky","doi":"10.4324/9780429467875-10","DOIUrl":"https://doi.org/10.4324/9780429467875-10","url":null,"abstract":"","PeriodicalId":265331,"journal":{"name":"Reach-to-Grasp Behavior","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130517248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this chapter, we showed that a close examination of the task geometry can explain how our digits move when we reach out to grasp an object. The laws that govern this behavior are similar to the ones that describe single-digit goal-directed movements. As with any movement, the selection of endpoint depends on why one is making the movement, and the trajectory is under continuous visual guidance, influenced by constraints imposed by obstacles and by the need to be precise.
{"title":"The Control of the Reach-to-Grasp Movement","authors":"J. Smeets, E. Brenner","doi":"10.4324/9780429467875-8","DOIUrl":"https://doi.org/10.4324/9780429467875-8","url":null,"abstract":"In this chapter, we showed that a close examination of the task geometry can explain how our digits move when we reach out to grasp an object. The laws that govern this behavior are similar to the ones that describe single-digit goal-directed movements. As with any movement, the selection of endpoint depends on why one is making the movement, and the trajectory is under continuous visual guidance, influenced by constraints imposed by obstacles and by the need to be precise.","PeriodicalId":265331,"journal":{"name":"Reach-to-Grasp Behavior","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117353310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Through their general movements in the womb, human fetuses will touch various aspects of their environment. This might include their own bodies, the body of a twin, the uterine wall, and the umbilical cord. Somatosensory responses can be observed as early as 8 weeks gestational age (e.g., Bradley & Mistretta, 1975). Sparling and Wilhelm (1993) indicated that during the later gestational periods, the hands of the fetuses begin to be directed to, and manipulate, other parts of the body, such as feet or the other hand, and explore parts of the external environment in the womb, such as the umbilical cord. Castiello et al. (2010) observed that by 14 weeks gestation not only movements directed at the self but also movements directed to a co-twin can be observed in the womb. The effects of experiencing touch might be wide reaching in terms of fetal development and preparation for life outside of the womb. Touch behaviours will be discussed in terms of the fetal sensitivity to touch, the effects of touch on body movement, cross-cultural differences in fetal touch behaviour and general movement, fetal action planning and goal-directed action, and visually guided fetal touch. The chapter concludes with a discussion of prenatal touch behaviours and later development.
{"title":"Goal Directed Behaviours","authors":"N. Reissland, Joseph M. Austen","doi":"10.4324/9780429467875-1","DOIUrl":"https://doi.org/10.4324/9780429467875-1","url":null,"abstract":"Through their general movements in the womb, human fetuses will touch various aspects of their environment. This might include their own bodies, the body of a twin, the uterine wall, and the umbilical cord. Somatosensory responses can be observed as early as 8 weeks gestational age (e.g., Bradley & Mistretta, 1975). Sparling and Wilhelm (1993) indicated that during the later gestational periods, the hands of the fetuses begin to be directed to, and manipulate, other parts of the body, such as feet or the other hand, and explore parts of the external environment in the womb, such as the umbilical cord. Castiello et al. (2010) observed that by 14 weeks gestation not only movements directed at the self but also movements directed to a co-twin can be observed in the womb. The effects of experiencing touch might be wide reaching in terms of fetal development and preparation for life outside of the womb. Touch behaviours will be discussed in terms of the fetal sensitivity to touch, the effects of touch on body movement, cross-cultural differences in fetal touch behaviour and general movement, fetal action planning and goal-directed action, and visually guided fetal touch. The chapter concludes with a discussion of prenatal touch behaviours and later development.","PeriodicalId":265331,"journal":{"name":"Reach-to-Grasp Behavior","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116825839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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