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Related Concept Videos

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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Psychological and Sociocultural Causes of Schizophrenia01:29

Psychological and Sociocultural Causes of Schizophrenia

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Schizophrenia, a complex psychiatric disorder, has been historically misunderstood. Early psychological theories attributed its origins to childhood trauma and unresponsive parenting. However, contemporary research largely rejects these notions, favoring the vulnerability-stress hypothesis. This model proposes that individuals with a genetic predisposition to schizophrenia may develop the disorder following exposure to significant environmental stressors. Notably, studies on high-risk...
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Biological Causes of Schizophrenia01:29

Biological Causes of Schizophrenia

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Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
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Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders01:27

Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders

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Schizophrenia is a neurodevelopmental disorder whose origins are rooted in complex genetic components. Despite our burgeoning understanding, the pathophysiology of this disorder remains incompletely deciphered.
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within...
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Alzheimer Disease l: Introduction01:29

Alzheimer Disease l: Introduction

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Alzheimer disease is a chronic, progressive, and irreversible neurodegenerative disorder and the most common cause of dementia in older adults. It leads to gradual neuronal loss, causing cognitive decline, behavioral changes, and loss of functional independence.Risk Factors and EtiologyThe disease is multifactorial. Age is the strongest risk factor, with prevalence doubling every 5 years after age 65. Genetic factors include mutations in genes such as APP, PSEN1, and PSEN2, which are associated...
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Huntington Disease l: Introduction01:21

Huntington Disease l: Introduction

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Huntington disease or HD is a progressive, fatal neurodegenerative disorder inherited in an autosomal dominant pattern.PathophysiologyIt is caused by expansion of the CAG trinucleotide repeat in the HTT gene on chromosome 4 (4p16.3), producing an abnormal huntingtin protein with an expanded polyglutamine tract. This misfolded protein disrupts cellular function, leading to neuronal death. Normal alleles have ≤26 repeats, 27–35 are intermediate (risk of expansion), 36–39 show...
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Related Experiment Video

Updated: May 3, 2026

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
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Late onset simple schizophrenia.

D O'Brien1, J Macklin

  • 1CT2 Trainee in Psychiatry, Ailsa Hospital, Scotland.

Scottish Medical Journal
|January 22, 2014
PubMed
Summary

Simple schizophrenia, a controversial diagnosis, involves personality changes without delusions. Early diagnosis and antipsychotic treatment led to significant functional recovery in a 54-year-old patient.

Area of Science:

  • Psychiatry
  • Clinical Psychology
  • Neuroscience

Background:

  • Simple schizophrenia is an underutilized and debated diagnostic category.
  • It is characterized by gradual personality and behavioral changes, distinct from other schizophrenia subtypes.
  • The diagnosis often presents challenges due to the absence of prominent positive symptoms like hallucinations or delusions.

Observation:

  • A case study of a 54-year-old man presented with insidious personality and behavioral shifts.
  • The patient exhibited a progressive decline in overall functioning and self-care abilities.
  • Crucially, the patient lacked typical psychotic symptoms such as perceptual abnormalities or delusions.

Findings:

  • The patient received a diagnosis of simple schizophrenia.
Keywords:
Simple schizophrenialate onsetnegative symptoms

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  • Treatment with antipsychotic medication resulted in rapid and sustained functional recovery.
  • This case underscores the clinical utility of the simple schizophrenia diagnosis.

    • Implications:

    • Recognizing simple schizophrenia is crucial to prevent severe functional impairment.
    • Early identification and intervention can significantly improve patient outcomes and societal integration.
    • Overlooking this diagnosis carries substantial risks for patient well-being and social functioning.