相关实验视频

Updated: Jun 17, 2025

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
07:30

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study

Published on: August 18, 2020

6.5K

在青春期暴露于口服LSD后,大脑结构和功能的发育变化

Lila Harris-Blum1, Zachary Smith1, Richard J Ortiz2

  • 1Center for Translational NeuroImaging, Northeastern University, Boston, MA, USA.

Scientific reports
|August 11, 2024
PubMed
概括

青少年暴露于lysergic acid diethylamide (LSD) 并没有影响年轻成年小鼠的认知或运动行为. 然而,多次LSD剂量改变了大脑的微观结构,并减少了功能连接,这表明神经可塑性发生了持久的变化.

关键词:
扩散加权成像技术的使用.神经可塑性 神经可塑性休息状态 功能连接 功能连接感觉运动皮质是感觉运动皮质.基于voxel的形态测量方法

更多相关视频

Author Spotlight: Understanding Adolescent Social Adversity Effects on Neurodevelopment in Mice07:15

Author Spotlight: Understanding Adolescent Social Adversity Effects on Neurodevelopment in Mice

Published on: March 15, 2024

1.4K
Author Spotlight: A Lightweight Drive Implant for Chronic Tetrode Recordings in Juvenile Mice06:34

Author Spotlight: A Lightweight Drive Implant for Chronic Tetrode Recordings in Juvenile Mice

Published on: June 2, 2023

2.6K

相关概念视频

Hallucinogens and Psychedelics01:27

Hallucinogens and Psychedelics

Hallucinogens are psychoactive substances that profoundly alter perceptual experiences, generating unreal visual and sensory images. Often referred to as psychedelic drugs — a term derived from the Greek words "psyche" (mind) and "delos" (revealing) — these substances include marijuana and lysergic acid diethylamide (LSD), among others. These drugs vary in intensity and effects.
Marijuana, derived from the dried leaves and flowers of the hemp plant, contains...
160
Long-term Depression01:03

Long-term Depression

Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
If over...
2.5K
Cognitive Development During Adolescence01:18

Cognitive Development During Adolescence

During adolescence, individuals experience significant cognitive development that enhances their understanding of others' emotions and thoughts, known as cognitive empathy. This period is marked by an increased ability to adapt to others' perspectives and a more nuanced understanding of others' mental states, a skill that is foundational for social problem-solving and conflict avoidance. The development of cognitive empathy relies heavily on the theory of mind — the...
49
Revisionist Views of Adolescent and Adult Cognition01:24

Revisionist Views of Adolescent and Adult Cognition

A revisionist approach to Jean Piaget's theory of cognitive development has brought new insights that challenge and reinterpret his established ideas. Piaget proposed that the formal operational stage, emerging in adolescence, represents the culmination of cognitive maturity. During this stage, individuals are said to develop abstract thinking, engage in systematic problem-solving, and show a form of egocentrism, believing others are as preoccupied with their behavior as they are...
28
CNS Stimulants: Psychedelic Agents01:22

CNS Stimulants: Psychedelic Agents

Hallucinogens, also known as psychedelic drugs, are a class of substances known for their ability to alter perception, cognition, and emotions. Despite their profound effects on the mind, these drugs are non-addictive, setting them apart from many other abused substances. The mechanism of action of these drugs lies in their impact on the 5-HT2A receptor in the brain. Upon activation, this receptor couples to Gq-type G proteins, triggering a cascade that releases intracellular calcium. This...
134
Psychosexual Theory of Development01:14

Psychosexual Theory of Development

Sigmund Freud's psychosexual theory of development suggests that early childhood experiences significantly shape personality and behavior. Freud proposed that development is discontinuous, occurring in five distinct stages, each defined by a focus on different erogenous zones. He believed that failure to resolve the conflicts specific to each stage successfully could result in fixation, potentially influencing behavior as adults.
The Five Stages of Psychosexual Development
Freud's...
172