前頭葉の貯蔵と実行プロセスは,前頭葉にある.
1Department of Psychology, Mental Health Research Institute, University of Michigan, Ann Arbor, MI 48109-1109, USA. eesmith@umich.edu
Science (New York, N.Y.)
|March 12, 1999
まとめ
人間の前頭皮質は,より高い認知能力に不可欠な作業記憶を管理します. 異なる前頭部領域は,言語的,空間的,またはオブジェクト情報を保存するために活性化しますが,注意力などの実行機能は,特定の前頭部領域を勧誘します.
科学分野:
- 認知神経科学とは
- 神経画像は,神経イメージングによるものです.
- 人間の脳の機能 人間の脳の機能
背景:
- 作業記憶は,より高い認知機能に不可欠です.
- 短期記憶と実行プロセスを含む.
- 機能神経イメージングの研究では,これらのコンポーネントを調査しています.
研究 の 目的:
- 作業記憶コンポーネントのニューラル相関性を調査する.
- 情報の保存に関与する異なる前頭皮質領域を特定する.
- 作業記憶における実行プロセスのための脳活性化をマップする.
主な方法:
- 機能性神経イメージング技術が採用されました.
- 作業記憶のタスク中に脳活動が測定されました.
- アクティベーションパターンは,異なる情報タイプとエグゼクティブ機能について分析されました.
主要な成果:
- 特定の前頭部領域は,言語的,空間的,そしてオブジェクト情報を格納するために,差異的に活性化されます.
- ブロカの領域と前運動領域は,言語記憶に関与しています.
- 右前運動皮質は空間記憶と関連しています.
- 前帯状皮質と背側前頭前皮質は,選択的注意とタスク管理によって活性化されます.
結論:
- 人間の前頭皮質は,作業記憶のさまざまな側面のための専門領域を展示しています.
- 作業メモリ内の情報保存と実行制御のためのニューラル基板が特定されています.
- この発見は,複雑な認知のニューラル基盤についての理解を深める.
さらに関連する動画
関連する概念動画
01:15Functional Brain Systems: Limbic System
The limbic system, often called the "emotional brain," is a complex set of structures located deep within the brain. The intricate network of the limbic system supports a wide range of psychological functions, from emotional regulation to memory formation and sensory processing. This functional brain region encompasses specific parts of the diencephalon and the cerebrum, integrating the higher mental functions of the cerebral cortex with the primitive emotional responses of the deep brain...
01:31Organization of the Brain
The brain is an integral component of the nervous system and serves as the center for processing sensory inputs, making decisions, and directing bodily actions. This complex organ is organized into three primary sections: the hindbrain, midbrain, and forebrain, each responsible for a range of vital functions.
Hindbrain
The hindbrain, located at the base of the brain, plays a vital role in regulating automatic processes that sustain life. It includes the medulla oblongata, which is essential for...
Hindbrain
The hindbrain, located at the base of the brain, plays a vital role in regulating automatic processes that sustain life. It includes the medulla oblongata, which is essential for...
01:22Lobes of the Cerebrum
The cerebral cortex, a critical structure of the brain, is intricately divided into two hemispheres, each consisting of four distinct lobes: occipital, temporal, frontal, and parietal. These lobes function cooperatively to regulate various cognitive and sensory functions, forming the basis of our complex neural capabilities.
Frontal lobe
The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements.
Frontal lobe
The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements.
01:24Working Memory
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this information.
01:23Storage
A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze each...
01:14Role of Cerebellum and Prefrontal Cortex in Memory
The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the cerebellum's...