在威胁学习中,向侧面桃体输入的胆固醇和皮质流体输入的强化

相关实验视频

Updated: Jul 15, 2025

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

Meenakshi M Asokan1, Yurika Watanabe2, Eyal Y Kimchi3

  • 1Eaton-Peabody Laboratories, Massachusetts Eye and Ear, Boston, MA 02114, USA; Division of Medical Sciences, Harvard Medical School, Boston, MA 02114, USA.

Cell reports
|September 24, 2023
PubMed
概括

小鼠通过加强侧面桃体 (LA) 的连接来学习害怕声音. 这种听觉威胁学习涉及高级听觉皮层 (HO-AC) 和LA之间的增强通信,以及乙胆的释放.

关键词:
科普:神经科学是什么意思帕夫洛夫的条件化.乙烯基胆是一种听觉皮层的听觉皮层.基本侧面的杏仁体复合体胆固醇基底前脑前脑皮质流性 皮质流性歧视性恐惧学习学习侧面的杏仁体 侧面的杏仁体一个学生的学生.时间关联区域区域.

更多相关视频

Combined Optogenetic and Freeze-fracture Replica Immunolabeling to Examine Input-specific Arrangement of Glutamate Receptors in the Mouse Amygdala09:49

Combined Optogenetic and Freeze-fracture Replica Immunolabeling to Examine Input-specific Arrangement of Glutamate Receptors in the Mouse Amygdala

Published on: April 15, 2016

11.1K
Using the Threat Probability Task to Assess Anxiety and Fear During Uncertain and Certain Threat11:18

Using the Threat Probability Task to Assess Anxiety and Fear During Uncertain and Certain Threat

Published on: September 12, 2014

15.3K

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...
273
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...
3.0K
Long-term Potentiation01:25

Long-term Potentiation

Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
LTP can occur when...
2.8K
Physiology of Emotion01:20

Physiology of Emotion

The physiology of emotions is a multifaceted process involving the autonomic nervous system, brain structures, hormones, and neurotransmitters. This intricate interplay dictates how emotions manifest in the body and influence behavior.
Autonomic Nervous System
The autonomic nervous system (ANS) plays a critical role in emotional responses by regulating involuntary physiological functions. It consists of two main components: the sympathetic and parasympathetic systems. The sympathetic system...
936
Physiological Theories: Cannon-Bard Theory of Emotion01:22

Physiological Theories: Cannon-Bard Theory of Emotion

The Cannon-Bard theory of emotion, proposed by Walter Cannon and Philip Bard, challenges the notion that emotions are solely the result of physiological responses. Instead, this theory suggests that emotional experiences and physiological arousal occur simultaneously but operate through independent mechanisms. This dual response is initiated by the brain, specifically by the thalamus, which plays a critical role in processing sensory information.
Upon perceiving a stimulus, such as a dangerous...
582
Sympathetic Activation01:17

Sympathetic Activation

The sympathetic division can influence tissues and organs by releasing norepinephrine at peripheral synapses and distributing epinephrine and norepinephrine through the bloodstream. In times of crisis or stress, sympathetic activation occurs, which is regulated by sympathetic centers in the hypothalamus. As a result, sympathetic activation prepares the body for physical exertion, rapid ATP production, and heightened alertness, allowing individuals to respond effectively to challenging or...
5.3K