Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Diabetes: Symptoms, Diagnosis, and Complications01:15

Diabetes: Symptoms, Diagnosis, and Complications

2.4K
For most patients, experiencing several weeks of polyuria, polydipsia, fatigue, and significant weight loss may indicate the presence of diabetes. Furthermore, adults displaying the phenotypic appearance of type 2 diabetes (particularly those who are obese and not initially insulin-requiring), may have islet cell autoantibodies, suggesting autoimmune-mediated β cell destruction and a diagnosis of latent autoimmune diabetes of adults (LADA). The categorization of glucose homeostasis is...
2.4K
Negative and Cognitive Symptoms of Schizophrenia01:30

Negative and Cognitive Symptoms of Schizophrenia

653
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.
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,...
653
Asthma-III: Symptoms and Complications01:24

Asthma-III: Symptoms and Complications

3.4K
Asthma, a common chronic respiratory condition, is classified considering the frequency and severity of symptoms alongside lung function impairment. Understanding this classification is essential for appropriate treatment and management. Here's a detailed look at the classification of asthma and its clinical features and complications:
Classification of Asthma
3.4K
Pleural Effusion II: Symptoms and Management01:28

Pleural Effusion II: Symptoms and Management

825
Pleural Effusion Overview
A pleural effusion is the abnormal collection of fluid between the parietal and visceral pleura layers of tissue that form the lining of the lungs and chest cavity. It can occur independently or due to surrounding parenchymal diseases, such as infection, malignancy, or inflammatory conditions.
Clinical Manifestations:
825
Positive Symptoms Schizophrenia: Hallucinations and Delusions01:26

Positive Symptoms Schizophrenia: Hallucinations and Delusions

652
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...
652
Positive Symptoms of Schizophrenia: Hallucinations and Delusions01:30

Positive Symptoms of Schizophrenia: Hallucinations and Delusions

711
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...
711

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Pathways for VA and community stakeholder management of military veterans with sexual offenses: Sexual and nonsexual recidivism rates and risk factors in military veterans released from California sexually violent predator (SVP) commitment.

Psychological services·2023
Same author

California Sexually Violent Predator (SVP) Evaluations in the Field: Static-99R and Diagnostic Field Reliability.

Sexual abuse : a journal of research and treatment·2021
Same author

Can and should neurologists screen their patients for depression? Yes, and….

Neurology. Clinical practice·2020
Same author

Towards a healthier provider-payer tandem: Messages from IVIg utilization reviews.

Neurology. Clinical practice·2018
Same author

Needed: consensus and classification for terms used in cognitive, forensic and clinical bias discussions.

Forensic science international·2018
Same author

Blinding or information control in diagnosis: could it reduce errors in clinical decision-making?

Diagnosis (Berlin, Germany)·2018

Related Experiment Video

Updated: Feb 14, 2026

Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber
08:47

Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber

Published on: March 3, 2023

3.1K

Symptom exaggeration and symptom validity testing in persons with medically unexplained neurologic presentations.

Joseph Lockhart1, Saty Satya-Murti1

  • 1Department of State Hospitals (JL), State of California; and Health Policy Consultant (SS-M), Santa Maria, CA.

Neurology. Clinical Practice
|February 15, 2018
PubMed
Summary

Symptom validity tests (SVTs) can help neurologists identify symptom exaggeration in patients with medically unexplained symptoms. These objective tools aid in diagnosis and treatment planning, improving patient care.

More Related Videos

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression
04:33

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression

Published on: April 26, 2024

1.6K
Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping
10:25

Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping

Published on: September 25, 2019

49.5K

Related Experiment Videos

Last Updated: Feb 14, 2026

Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber
08:47

Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber

Published on: March 3, 2023

3.1K
Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression
04:33

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression

Published on: April 26, 2024

1.6K
Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping
10:25

Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping

Published on: September 25, 2019

49.5K

Area of Science:

  • Neurology
  • Psychology
  • Medical Diagnostics

Background:

  • Medically unexplained symptoms are prevalent, affecting 10%-30% of patients across specialties.
  • These symptoms are often associated with somatoform, functional, factitious, or conversion disorders.
  • Symptom exaggeration and inadequate effort are potential features in these patient populations.

Purpose of the Study:

  • To introduce neurologists to Symptom Validity Tests (SVTs).
  • To discuss the merits, shortcomings, utility, and applicability of SVTs in neurological practice.
  • To highlight how SVTs can aid in managing patients with medically unexplained symptoms.

Main Methods:

  • Review of the literature on Symptom Validity Tests (SVTs).
  • Discussion of the structured, validated, and objectively scored nature of SVTs.
  • Exploration of the diagnostic utility of SVTs in detecting poor effort and exaggeration.

Main Results:

  • Symptom Validity Tests (SVTs) are effective in detecting poor effort, underperformance, and exaggeration.
  • SVTs demonstrate diagnostic utility in identifying symptom exaggeration when appropriate prior probabilities are considered.
  • The use of SVTs can potentially moderate expensive diagnostic testing and redirect treatment plans.

Conclusions:

  • Symptom Validity Tests (SVTs) offer valuable insights for neurologists evaluating patients with medically unexplained symptoms.
  • SVTs can assist in differentiating genuine symptoms from exaggeration, leading to more accurate diagnoses.
  • Integrating SVTs into practice can optimize diagnostic pathways and treatment strategies for patients exhibiting unexplained symptoms.