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相关概念视频

Altered States of Awareness01:06

Altered States of Awareness

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Altered states of consciousness represent significant deviations from one's normal mental state. These deviations can range from subtle changes in awareness to profound transformations in perception, thought processes, and sensory experiences. Altered states of consciousness can be triggered by various factors, including drug use, meditation, hypnosis, illness, or even intense fatigue.
The ingestion of substances like stimulants or hallucinogens leads to chemical alterations in the brain...
958
Hallucinogens and Psychedelics01:27

Hallucinogens and Psychedelics

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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...
564
CNS Stimulants: Psychedelic Agents01:22

CNS Stimulants: Psychedelic Agents

637
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...
637
The Scientific Method02:40

The Scientific Method

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Research is what makes the difference between facts and opinions. Facts are observable realities, and opinions are personal judgments, conclusions, or attitudes that may or may not be accurate. In the scientific community, facts can be established only using evidence collected through empirical research.
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An Overview of Psychoactive Drugs01:28

An Overview of Psychoactive Drugs

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Psychoactive drugs impact brain function, influencing perception, mood, consciousness, cognition, and behavior. These substances are grouped based on their effects and the mechanisms by which they act.
Stimulants such as cocaine, amphetamines, and nicotine enhance brain activity, leading to increased alertness, attention, and energy. These drugs typically raise heart rate, blood pressure, and body temperature. While they can induce feelings of euphoria, their misuse can result in severe health...
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相关实验视频

Updated: Jan 8, 2026

Combining Behavior and EEG to Study the Effects of Mindfulness Meditation on Episodic Memory
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Combining Behavior and EEG to Study the Effects of Mindfulness Meditation on Episodic Memory

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将迷幻和冥想体验报告与自然语言处理进行比较.

Konsta Kallio-Mannila1, Rosa Salmela2, Jussi Jylkkä3

  • 1Department of Psychology, University of Turku, Turku, Finland. konsta.kalliomannila@gmail.com.

Scientific reports
|December 16, 2025
PubMed
概括

迷幻和冥想体验有相似之处,但在情绪强度上有所不同. 与冥想相比,迷幻药产生了更多的情感充满,有意义的经历.

关键词:
幻觉制造物 幻觉制造物在 LDA LDA 中.冥想 冥想 冥想 冥想自然语言处理自然语言处理.迷幻药物 迷幻药物是一种精神药物.情绪分析是一种情绪分析.国际货币基金组织-国际货币基金组织文本相似性分析主题建模 主题建模变革性的经验.

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Modulation of the Neurophysiological Response to Fearful and Stressful Stimuli Through Repetitive Religious Chanting
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Using Wavelet Entropy to Demonstrate how Mindfulness Practice Increases Coordination between Irregular Cerebral and Cardiac Activities
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相关实验视频

Last Updated: Jan 8, 2026

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科学领域:

  • 神经科学是一个神经科学.
  • 心理学 心理学 心理学
  • 计算语言学 计算语言学

背景情况:

  • 迷幻药和冥想可以诱导深刻的,有意义的经历.
  • 了解这些经验之间的相似之处和差异至关重要.

研究的目的:

  • 用自然语言处理 (NLP) 来比较由迷幻药物诱导的主观体验与冥想.
  • 探索这些变革性经验的语义,词汇和情感特征.

主要方法:

  • 分析了197个开放式叙事报告,这些报告来自经历过迷幻药物或冥想的参与者.
  • 应用文本相似性,主题建模和情绪分析技术.

主要成果:

  • 心理学和冥想经验报告之间在语义和词汇内容上的高度相似性.
  • 两组都报告了积极的情绪,但迷幻体验更具情绪 (更高的积极和消极情绪).
  • 冥想体验通常在情绪语调方面更为中立.

结论:

  • 迷幻和冥想诱导的经历通常相似,但在情绪强度上有所不同.
  • 情绪强度可能是这些深刻的主观状态之间的关键差异化因素.
  • 需要进一步的研究来克服NLP的局限性,并充分理解变革性的经验.