相关实验视频

Updated: Jun 24, 2025

Recording Single Neurons' Action Potentials from Freely Moving Pigeons Across Three Stages of Learning

Recording Single Neurons' Action Potentials from Freely Moving Pigeons Across Three Stages of Learning

Published on: June 2, 2014

在复杂的行动目录和其神经表征中更新预测

Rosari Naveena Selvan¹, Minghao Cheng², Sophie Siestrup³

¹Department of Psychology, University of Münster, Münster, Germany; Otto Creutzfeldt Center for Cognitive and Behavioral Neuroscience, University of Münster, Münster, Germany; Department for Computational Neuroscience, Third Institute of Physics - Biophysics, University of Göttingen, Göttingen, Germany.

|June 13, 2024

概括

观察复杂的动作需要将它们分成部分. 在动作边界的脑活动,特别是在预测违规时,揭示了我们如何更新这些序列的内部模型.

科学领域:

神经科学是一个神经科学.
认知科学认知科学
发动机控制器的控制器

背景情况:

人类行为被认为是连续的,但是在离散的段落中处理的.
行动边界对于预测处理和更新内部模型至关重要.
了解行动细分的神经机制是认知神经科学的关键.

研究的目的:

在复杂,概率结构化的动作序列的边界调查神经过程.
在预测违规和成功的动作序列检索期间检查大脑活动.
识别参与预测即将发生的行动和检索行动目录的大脑区域.

主要方法:

使用功能磁共振成像 (fMRI) 来研究行动观察期间的大脑活动.
采用复杂的动作序列与预定义的概率结构,由触摸 (T) 和释放 (U) 事件定义.
利用计算机视觉来检测动作边界,并呈现修改后的序列来违反预测.

主要成果:

违反行动预测会增加行动观测网络和前部岛屿的激活.
动作释放 (U) 事件显示了补充运动区域,条纹体和舌环的激活,表明了剧本检索.
行动触摸 (T) 事件招募了中线和海马区域,反映了对下一个行动段的预测.

结论:

在动作边界的神经活动支持复杂的动作序列的预测处理.
大脑区域,如补充运动区,条纹体,胰岛和海马,在动作细分和预测中发挥着不同的作用.
这些发现增强了对大脑过程的理解,这些过程是观察到复杂动作的基础预测.

关键词:

行动观察行动观察行动感知行动感知行动预测层次结构.分支结构的分支结构.内部模型是内部模型.违反预期的行为

更多相关视频

A Fully Automated Rodent Conditioning Protocol for Sensorimotor Integration and Cognitive Control Experiments

A Fully Automated Rodent Conditioning Protocol for Sensorimotor Integration and Cognitive Control Experiments

Published on: April 15, 2014

Corticospinal Excitability Modulation During Action Observation

Corticospinal Excitability Modulation During Action Observation

Published on: December 31, 2013

相关概念视频

Associative Learning

Associative Learning

Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
Classical conditioning, also known...

Muscle Coordination and Action

Muscle Coordination and Action

Muscle coordination is a complex and finely tuned process essential for smooth and purposeful movements like flexion, extension, adduction, abduction, and rotation. The human body orchestrates the actions of various muscles working in concert, each with a specific role. Four functional types describe how muscles work together: agonist, antagonist, synergist, and fixator.
Agonists
Agonist muscles, often called prime movers, are the primary muscles responsible for producing a specific movement....

Propagation of Action Potentials

Propagation of Action Potentials

The propagation of an action potential refers to the process by which a nerve impulse, or "action potential," travels along a neuron.
Neurons (nerve cells) have a resting membrane potential, with a slightly negative charge inside compared to outside. This is maintained by ion channels, such as sodium (Na+) and potassium (K+) channels, which control the flow of ions. When a stimulus, like a touch or a signal from another neuron, triggers the neuron, sodium channels open, allowing sodium ions to...

Action Potential

Action Potential

Neurons communicate by firing action potentials—the electrochemical signal that is propagated along the axon. The signal results in the release of neurotransmitters at axon terminals, thereby transmitting information to the nervous system. An action potential is a specific "all-or-none" change in membrane potential that results in a rapid spike in voltage.
Membrane potential in neurons
Neurons typically have a resting membrane potential of about -70 millivolts (mV). When they...

Action Potentials

Action Potentials

Support Reactions in Three Dimensions

Support Reactions in Three Dimensions

Support reactions in three dimensions help maintain the stability and equilibrium of various structures and systems. These reactions prevent the system from translating and rotating, ensuring the design can withstand external forces and perform its intended function efficiently and safely. Some of the supports providing support reactions in three dimensions are discussed below:
Ball and Socket Joint is one of the supports allowing free rotation about any axis. This freedom of rotation is...