Related Experiment Video
Updated: Jul 23, 2026

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
Published on: November 21, 2013
Estimation of time by patients with positive and negative schizophrenia
1Psychiatric Clinic, Gävle Hospital, Sweden.
Abstract:
In a prior study, schizophrenic patients' tendency to over-estimate short time intervals was about the same for the different types of schizophrenia (DSM-III criteria). Reanalysis showed patients with positive and negative schizophrenia did not differ in their time estimations.
Related Concept Videos
Psychosis: Goals of Pharmacotherapy
Schizophrenia
Positive Symptoms Schizophrenia: Hallucinations and Delusions
Hallucinations
Hallucinations in...
Negative and Cognitive Symptoms of Schizophrenia
Negative Symptoms
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,...
Psychological and Sociocultural Causes of Schizophrenia
Positive Symptoms of Schizophrenia: Hallucinations and Delusions
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes loosely...

