Practice makes perfect: the neural substrates of tactile discrimination by Mah-Jong experts include the primary visual cortex.
Practice makes perfect: the neural substrates of tactile discrimination by Mah-Jong experts include the primary visual cortex.
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DOI：
10.1186/1471-2202-7-79
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发表时间：
2006-12-05
期刊：
影响因子：
2.4
通讯作者：
Sadato, Norihiro
中科院分区：
文献类型：
--
作者：
Saito, Daisuke N.;Okada, Tomohisa;Honda, Manabu;Yonekura, Yoshiharu;Sadato, Norihiro
视觉剥夺引起的视觉-触觉跨模态可塑性，特别是初级视觉皮层（V1）的可塑性，是否仅仅是由于视觉剥夺，或者是长期触觉训练的结果，还有待确定。在这里，我们进行了一项功能磁共振成像研究与正常视力的参与者谁经历了长期的培训，对触觉的形状辨别的二维（2D）的麻将牌（麻将专家）。8名麻将专家和12名健康志愿者，他们对麻将一无所知，使用麻将牌进行了触觉形状匹配任务，没有视觉输入。此外，八分之七的专家进行了触觉形状匹配任务与不熟悉的2D盲文字符。当被试对麻将牌进行触觉辨别时，受过良好训练的被试的左侧枕叶皮层（LO）和V1被激活。在幼稚受试者中，LO被激活，但V1未被激活。经过良好训练的受试者的LO和V1都在盲文触觉辨别任务中被激活。在触觉辨别训练的受试者中，V1的激活可能代表长期训练导致的跨模态反应的改变。
It has yet to be determined whether visual-tactile cross-modal plasticity due to visual deprivation, particularly in the primary visual cortex (V1), is solely due to visual deprivation or if it is a result of long-term tactile training. Here we conducted an fMRI study with normally-sighted participants who had undergone long-term training on the tactile shape discrimination of the two dimensional (2D) shapes on Mah-Jong tiles (Mah-Jong experts). Eight Mah-Jong experts and twelve healthy volunteers who were naïve to Mah-Jong performed a tactile shape matching task using Mah-Jong tiles with no visual input. Furthermore, seven out of eight experts performed a tactile shape matching task with unfamiliar 2D Braille characters. When participants performed tactile discrimination of Mah-Jong tiles, the left lateral occipital cortex (LO) and V1 were activated in the well-trained subjects. In the naïve subjects, the LO was activated but V1 was not activated. Both the LO and V1 of the well-trained subjects were activated during Braille tactile discrimination tasks. The activation of V1 in subjects trained in tactile discrimination may represent altered cross-modal responses as a result of long-term training.
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影响因子：
4.8
作者：
Burton, H;Sinclair, RJ;McLaren, DG
通讯作者：
McLaren, DG
影响因子：
5.7
作者：
Maldjian, JA;Laurienti, PJ;Burdette, JH
通讯作者：
Burdette, JH
影响因子：
25
作者：
Amedi, A;Malach, R;Zohary, E
通讯作者：
Zohary, E
影响因子：
64.8
作者：
Cohen, LG;Celnik, P;Hallett, M
通讯作者：
Hallett, M
DOI：
10.1016/j.cogbrainres.2004.04.005
发表时间：
2004-08-01
期刊：
COGNITIVE BRAIN RESEARCH
影响因子：
--
作者：
Hasegawa, T;Matsuki, KI;Sadato, N
通讯作者：
Sadato, N