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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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Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...
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Schizophrenia01:17

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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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Positive Symptoms of Schizophrenia: Hallucinations and Delusions01:30

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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.
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Personality Disorders: Paranoid and Schizoid01:22

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Personality disorders represent enduring cognition, affect, and behavior patterns that significantly deviate from societal norms. These maladaptive traits often lead to difficulties in various domains, including interpersonal relationships, occupational settings, and overall psychological well-being. Paranoid personality disorder and schizoid personality disorder are two distinct conditions marked by odd or eccentric behavior.
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Positive Symptoms Schizophrenia: Hallucinations and Delusions01:26

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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.
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Personality Disorders: Dependent and Obsessive-Compulsive01:24

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Dependent personality disorder and obsessive-compulsive personality disorder are two separate psychological conditions that influence behavior, relationships, and overall life functioning. Though both involve maladaptive behaviors, their core characteristics and motivations differ significantly.
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Related Experiment Video

Updated: Mar 28, 2026

Author Spotlight: Exploring the Link Between Time Perception of Visual Stimuli and Reading Skills
09:27

Author Spotlight: Exploring the Link Between Time Perception of Visual Stimuli and Reading Skills

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Time perception and time perspective dysfunctions in schizophrenia.

David Veronesi1, Mariagrazia Capizzi2, Luigi Micillo1

  • 1Department of General Psychology, University of Padova, Italy.

Behavioural Brain Research
|March 26, 2026
PubMed
Summary
This summary is machine-generated.

Individuals with schizophrenia show impaired explicit and implicit time perception and altered time perspectives. These cognitive and affective timing deficits in schizophrenia were not correlated in this study.

Keywords:
Balanced time perceptionExplicit timingImplicit timingSchizophreniaTime perspective

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Area of Science:

  • Cognitive Neuroscience
  • Psychiatry

Background:

  • Time perception is a complex cognitive function with perceptual and attitudinal components.
  • Schizophrenia is associated with various cognitive deficits, but temporal processing alterations require further investigation.

Purpose of the Study:

  • To examine explicit and implicit timing abilities in schizophrenia.
  • To investigate the relationship between timing deficits and time perspective in schizophrenia patients.

Main Methods:

  • Participants with schizophrenia and controls completed a time bisection task (explicit timing) and a foreperiod task (implicit timing).
  • The Zimbardo Time Perspective Inventory (ZTPI) was used to assess time perspective profiles.

Main Results:

  • Schizophrenia patients demonstrated reduced precision in explicit timing and a diminished foreperiod effect in implicit timing.
  • Patients exhibited heightened scores on Past Negative, Present Fatalistic, and Present Hedonistic dimensions, alongside a higher Deviation from Balanced Time Perspective (DBTP).

Conclusions:

  • Schizophrenia involves disruptions in both explicit-implicit timing and cognitive-affective time perspectives.
  • Timing and time perspective frameworks are crucial for understanding temporal dysfunctions in schizophrenia.