Enhanced Tactile (Touch) Spatial Acuity in Upper Limb Amputees
Enhancement of Tactile Spatial Acuity in Upper Limb Amputees
This study will examine whether tactile (touch) abilities at the lip are more acute in people with upper limb amputation compared with healthy normal volunteers. People with an amputated upper limb have an expanded brain representation of the lip that may correlate with heightened tactile spatial acuity.
Normal volunteers will be recruited for this study. Candidates will be screened with physical and neurological examinations. (Amputee volunteers will be studied at the amputee clinic at the University of Tubingen, Germany.)
Participants will sit comfortably in a chair, wearing a blindfold, during the following experiments:
- Plastic domes with grooves are placed on parts of the lower lip on either side for a few seconds. The volunteer is then asked to identify the direction of the grooves relative to the long axis of the lip.
- The participant's arm is placed in a cast and the index finger is immobilized. The same test done on the lip is repeated on the distal part of the index finger.
Each part of the test lasts about 20 minutes, and the entire experiment takes about 2 hours.
研究概览
地位
条件
详细说明
研究类型
注册
联系人和位置
学习地点
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Maryland
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Bethesda、Maryland、美国、20892
- National Institute of Neurological Disorders and Stroke (NINDS)
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参与标准
资格标准
适合学习的年龄
- 孩子
- 成人
- 年长者
接受健康志愿者
有资格学习的性别
描述
INCLUSION CRITERIA:
Normal volunteers who are willing and able to stay relaxed and collaborative for a period of up to 2 hours.
Subjects with upper limb amputation more than one year before testing.
EXCLUSION CRITERIA:
Neurological or psychiatric disease
Excessive callus at the palm of the fingers
Subjects, who are unable to perform or understand the task
学习计划
研究是如何设计的?
合作者和调查者
出版物和有用的链接
一般刊物
- Elbert T, Flor H, Birbaumer N, Knecht S, Hampson S, Larbig W, Taub E. Extensive reorganization of the somatosensory cortex in adult humans after nervous system injury. Neuroreport. 1994 Dec 20;5(18):2593-7. doi: 10.1097/00001756-199412000-00047.
- Flor H, Elbert T, Knecht S, Wienbruch C, Pantev C, Birbaumer N, Larbig W, Taub E. Phantom-limb pain as a perceptual correlate of cortical reorganization following arm amputation. Nature. 1995 Jun 8;375(6531):482-4. doi: 10.1038/375482a0.
- Kaas JH, Merzenich MM, Killackey HP. The reorganization of somatosensory cortex following peripheral nerve damage in adult and developing mammals. Annu Rev Neurosci. 1983;6:325-56. doi: 10.1146/annurev.ne.06.030183.001545. No abstract available.
研究记录日期
研究主要日期
学习开始
研究完成
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
与本研究相关的术语
其他研究编号
- 020067
- 02-N-0067
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