相关实验视频

Updated: Jul 12, 2025

Investigating the Neural Mechanisms of Aware and Unaware Fear Memory with fMRI
12:51

Investigating the Neural Mechanisms of Aware and Unaware Fear Memory with fMRI

Published on: October 6, 2011

13.2K

底侧杏仁体:威胁调节,灭绝和二级威胁调节网络的核心

Tayebeh Sepahvand1, Kyron D Power1, Tian Qin1

  • 1Biomedical Sciences, Faculty of Medicine, Memorial University, St John's, NL A1B 3V6, Canada.

Biology
|October 27, 2023
PubMed
概括

本综述探讨了底侧杏仁体 (BLA) 和连接的大脑区域如何促进恐惧学习和记忆. 了解这些神经回路为治疗恐惧和焦虑障碍提供了洞察力.

关键词:
阿米格达拉的桃体多巴胺是多巴胺的一种.灭绝的灭绝是一种灭绝.在海马体内,海马体北上腺氨酸 (norepinephrine) 是一种前额叶皮层前额叶皮层第二阶段的调节条件.感官皮层感官皮层.威胁条件的威胁条件.

更多相关视频

Extinction Training During the Reconsolidation Window Prevents Recovery of Fear11:17

Extinction Training During the Reconsolidation Window Prevents Recovery of Fear

Published on: August 24, 2012

35.4K
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

6.8K

相关概念视频

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...
254
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...
2.9K
Classical Conditioning in Daily Life01:17

Classical Conditioning in Daily Life

Classical conditioning, a fundamental principle of associative learning, explains various phenomena observed in daily life, such as fear development, the placebo effect, taste aversion, and drug habituation. These applications demonstrate the profound impact of associative learning on human behavior and physiological responses.
John B. Watson and Rosalie Rayner famously demonstrated the development of fear through classical conditioning in their experiment with Little Albert. They paired the...
815
Real-World Application of Classical Conditioning01:15

Real-World Application of Classical Conditioning

Classical conditioning not only includes the initial pairing of stimuli but also extends to more complex forms, such as higher-order conditioning. Higher-order conditioning involves creating associations beyond the primary conditioned stimulus, resulting in a chain of conditioned responses.
Higher-order, or second-order, conditioning occurs when a neutral stimulus becomes associated with an already established conditioned stimulus through repeated pairings. For instance, if a dog has been...
598
Principles of Classical Conditioning01:23

Principles of Classical Conditioning

Classical conditioning, as described by Ivan Pavlov, is a foundational concept in associative learning, where a neutral stimulus becomes capable of eliciting a conditioned response through association with an unconditioned stimulus. The process of acquisition, where this learning occurs, and the subsequent phenomena of contiguity, contingency, generalization, discrimination, extinction, and spontaneous recovery are crucial for a comprehensive understanding of classical conditioning.
During the...
690
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...
105