在心理算术过程中,招募参与眼睛运动的区域
André Knops1, Bertrand Thirion, Edward M Hubbard
1INSERM, Cognitive Neuroimaging Unit, F-91191 Gif-sur-Yvette, France. knops.andre@gmail.com
Science (New York, N.Y.)
|May 9, 2009
概括
人类大脑在脑后皮质中使用空间注意力电路进行心理算术. 这表明,数学思维选择了原来用于空间处理的脑区域.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 数学 数学 是一个数学.
背景情况:
- 数和空间之间的关系是数学中长期存在的概念.
- 涉及空间注意力的皮质电路被假设在人类心理算术中发挥作用.
研究的目的:
- 为了调查人类皮层的空间注意力电路是否有助于精神算术.
- 为了确定与空间任务相关的大脑激活模式是否可以预测算术运算.
主要方法:
- 一个多变量分类算法被训练来解码左对右眼睛运动方向从后壁皮质大脑活动.
- 然后,经过训练的分类器在没有进一步训练的情况下应用于算术任务,以评估其概括能力.
主要成果:
- 该分类器成功地区分了左眼和右眼的运动方向,这是基于后壁皮质皮质激活.
- 同一个分类器,没有重新训练,可以在心理算术任务中区分减法和加法试验.
- 这种分类是有效的,无论算术是使用符号数字或点集进行的.
结论:
- 精神算术似乎利用后壁状皮质内的神经电路,后壁状皮质也参与空间编码和注意力.
- 这些发现支持这样一个假设:像算术这样的更高的认知功能可能会利用进化上更古老的大脑系统进行空间处理.
相关概念视频
01:21Association Areas of the Cortex
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
01:20Muscles of the Eye
The muscles of the eye are sophisticated structures that control eye movement and focus, allowing for the precise and rapid adjustments necessary for vision. The human eye is controlled by ten muscles — six extraocular muscles, three intraocular muscles, and one primary eyelid retractor muscle.
Extraocular Muscles
The six extraocular muscles surround the eyeball and control its movements. They are responsible for a wide range of eye motions, including looking up, down, left, right, and rotating...
Extraocular Muscles
The six extraocular muscles surround the eyeball and control its movements. They are responsible for a wide range of eye motions, including looking up, down, left, right, and rotating...