関連する実験動画

Updated: May 5, 2026

Ex Vivo Optogenetic Dissection of Fear Circuits in Brain Slices
11:13

Ex Vivo Optogenetic Dissection of Fear Circuits in Brain Slices

Published on: April 5, 2016

16.0K

前頭前野パルバルブミン内ニューロンは,恐怖の表現を駆動するニューロンの活動を形作ります

Julien Courtin1, Fabrice Chaudun1, Robert R Rozeske1

  • 11] INSERM, Neurocentre Magendie, U862, 146 Rue Léo-Saignat, Bordeaux 33077, France [2] University of Bordeaux, Neurocentre Magendie, U862, 146 Rue Léo-Saignat, Bordeaux 33077, France.

Nature
|November 22, 2013
PubMed
まとめ

前頭前皮質のパルバルブミン内ニューロン (PVINs) を抑制すると,神経発火が同期され,恐怖の表現が誘発されます. これは,PVINが神経活動の正確な時間的調整を通じて,どのように感情的行動を制御しているかを明らかにします.

さらに関連する動画

A Novel Pavlovian Fear Conditioning Paradigm to Study Freezing and Flight Behavior09:26

A Novel Pavlovian Fear Conditioning Paradigm to Study Freezing and Flight Behavior

Published on: January 5, 2021

6.3K
Trace Fear Conditioning in Mice07:02

Trace Fear Conditioning in Mice

Published on: March 20, 2014

33.2K

関連する概念動画

Role of Amygdala in Memory01:16

Role of Amygdala in Memory

The amygdala is a small, almond-shaped structure responsible for processing and storing memories, particularly those linked to emotions like fear and stress. It plays an essential role in the brain's response to emotionally significant events and often enhances memory formation by triggering stress hormone release. The amygdala is vital for encoding and retrieving memories associated with fear or stress, a process that is adaptive by helping organisms avoid dangerous situations.
One of the...
1.9K
Functional Brain Systems: Limbic System01:15

Functional 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...
8.8K
Role of Cerebellum and Prefrontal Cortex in Memory01:14

Role 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...
1.5K
Preparedness and Phobias01:09

Preparedness and Phobias

Human fear responses to certain stimuli, such as darkness, heights, deep water, and blood, can often arise despite the absence of direct negative experiences. This phenomenon is rooted in evolutionary psychology, which posits that humans have developed a predisposition to fear stimuli that historically posed significant survival threats. This predisposition, known as preparedness, suggests that early humans who developed a fear of potentially dangerous entities, such as venomous snakes and...
477