Learning to tie the knot: The acquisition of functional object representations by physical and observational experience.
Learning to tie the knot: The acquisition of functional object representations by physical and observational experience.
复制标题
DOI：
10.1371/journal.pone.0185044
复制
发表时间：
2017
期刊：
影响因子：
3.7
通讯作者：
Grafton ST
中科院分区：
文献类型：
--
作者：
Cross ES;Hamilton AFC;Cohen NR;Grafton ST
在这里，我们检查了物理和观察学习的神经基础，以构建新的对象，并使用功能磁共振成像表征了与每种学习相关的大脑区域。每个参与者都被分配了一个训练伙伴，并连续五天练习打一组结(“捆绑”状态)，或者看着他们的伙伴打不同的结(“看”状态)，而第三组结保持不训练。在训练一周之前和之后立即进行功能磁共振成像，同时参与者进行视觉节点匹配任务。训练结束后，部分左顶上小叶通过扫描互动进行训练。这意味着这个顶区对参与者在训练后扫描过程中实际学习到的打结做出了选择性的反应，但在训练前的扫描过程中没有。对训练后扫描数据的联合分析显示，与训练后扫描期间未训练的结相比，右侧顶内沟和右侧背侧运动前皮质在观看捆绑和观看条件下的结的图像时做出反应。这表明，这些大脑区域跟踪身体学习和观察性学习。总而言之，这些数据提供了初步证据，表明在观看与物理体验相关的物体时，与手-物体相互作用相关的大脑区域参与，以及在没有同时进行物理练习的情况下与观察体验相关联。
Here we examined neural substrates for physically and observationally learning to construct novel objects, and characterized brain regions associated with each kind of learning using fMRI. Each participant was assigned a training partner, and for five consecutive days practiced tying one group of knots (“tied” condition) or watched their partner tie different knots (“watched” condition) while a third set of knots remained untrained. Functional MRI was obtained prior to and immediately following the week of training while participants performed a visual knot-matching task. After training, a portion of left superior parietal lobule demonstrated a training by scan session interaction. This means this parietal region responded selectively to knots that participants had physically learned to tie in the post-training scan session but not the pre-training scan session. A conjunction analysis on the post-training scan data showed right intraparietal sulcus and right dorsal premotor cortex to respond when viewing images of knots from the tied and watched conditions compared to knots that were untrained during the post-training scan session. This suggests that these brain areas track both physical and observational learning. Together, the data provide preliminary evidence of engagement of brain regions associated with hand-object interactions when viewing objects associated with physical experience, and with observational experience without concurrent physical practice.
登录
查看更多内容
DOI：
10.1016/j.cogbrainres.2004.10.006
发表时间：
2005-03-01
期刊：
COGNITIVE BRAIN RESEARCH
影响因子：
--
作者：
Creem-Regehr, SH;Lee, JN
通讯作者：
Lee, JN
影响因子：
5.7
作者：
Diedrichsen, J;Shadmehr, R
通讯作者：
Shadmehr, R
影响因子：
5.3
作者：
Frey, Scott H.;Gerry, Valerie E.
通讯作者：
Gerry, Valerie E.
影响因子：
3.7
作者：
Eickhoff, SB;Schleicher, A;Amunts, K
通讯作者：
Amunts, K
影响因子：
3.7
作者：
Cross, Emily S.;Kraemer, David J. M.;Grafton, Scott T.
通讯作者：
Grafton, Scott T.