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Related Concept Videos

Positive Symptoms Schizophrenia: Hallucinations and Delusions01:26

Positive Symptoms Schizophrenia: Hallucinations and Delusions

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Schizophrenia is a complex psychiatric disorder characterized by a range of symptoms that significantly impact cognition, behavior, and emotional regulation. Among these, the positive symptoms stand out as they involve the addition or exaggeration of normal mental functions, deviating markedly from typical behavior and perception. Hallucinations and delusions are prominent positive symptoms, each profoundly affecting the individual's experience of reality.
Hallucinations
Hallucinations in...
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Positive Symptoms of Schizophrenia: Hallucinations and Delusions01:30

Positive Symptoms of Schizophrenia: Hallucinations and Delusions

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Schizophrenia is a complex mental health disorder that can manifest with various positive symptoms, including thought, movement, and behavior disorders. These symptoms significantly disrupt cognitive and motor functions, leading to profound effects on an individual's ability to engage with the world.
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes...
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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...
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CNS Stimulants: Psychedelic Agents01:22

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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...
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Schizophrenia01:17

Schizophrenia

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Schizophrenia, a term introduced by Swiss psychiatrist Eugen Bleuler in 1911, describes a severe psychological disorder marked by profound disruptions in attention, thought processes, language, emotion, and interpersonal relationships. The core feature of schizophrenia is psychosis — a state characterized by a fundamental detachment from reality. This disconnection manifests through distorted logic, impaired perception, and atypical behavior, severely affecting the lives of those...
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Negative and Cognitive Symptoms of Schizophrenia01:30

Negative and Cognitive Symptoms of Schizophrenia

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Negative symptoms of schizophrenia indicate a reduction or absence of typical behaviors and emotional responses found in healthy individuals, while positive symptoms reflect an excess or distortion of normal functioning.
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Related Experiment Video

Updated: Nov 16, 2025

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
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An apathetic child with hallucinations.

Ingrid Anna Teigen, Jon Andsnes Berg, Kristoffer Brodwall

    Tidsskrift for Den Norske Laegeforening : Tidsskrift for Praktisk Medicin, Ny Raekke
    |February 24, 2021
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    Summary
    This summary is machine-generated.

    Lysergic acid diethylamide (LSD) poisoning in children is rare and hard to diagnose. Early lab testing of blood and urine is crucial for identifying LSD intoxication and ensuring recovery.

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    Area of Science:

    • Toxicology
    • Pediatrics
    • Neuroscience

    Background:

    • Lysergic acid diethylamide (LSD) is a potent hallucinogen affecting perception, consciousness, and behavior.
    • LSD poisonings in children are infrequent and present diagnostic challenges based solely on clinical signs.

    Observation:

    • A pediatric patient presented with unusual behavior, reduced responsiveness, agitation, apathy, ataxia, and visual hallucinations.
    • The child's symptoms were initially perplexing, highlighting the difficulty in recognizing LSD intoxication without specific testing.

    Findings:

    • Targeted laboratory analysis of blood and urine samples confirmed lysergic acid diethylamide (LSD) poisoning.
    • The patient experienced a complete recovery without requiring specific antidotal treatment.

    Implications:

    • Clinicians should consider drug intoxication, including LSD, in pediatric cases with unexplained neuropsychiatric symptoms or behavioral changes.
    • Prompt blood and urine sample analysis for a wide range of substances is recommended for accurate diagnosis.
    • While no specific antidote for LSD exists, symptomatic treatment with benzodiazepines may be necessary for managing agitation or hallucinations.