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

Bipolar Disorder01:30

Bipolar Disorder

Bipolar disorder is a chronic mental health condition marked by significant mood fluctuations, including episodes of mania and depression. Elevated energy levels, heightened mood or irritability, impulsive behavior, reduced sleep needs, rapid speech, racing thoughts, inflated self-esteem, and distractibility characterize mania. Individuals with bipolar disorder often alternate between depressive and manic states, with periods of emotional stability lasting an average of six months to a year.
Borderline Personality Disorder01:25

Borderline Personality Disorder

Borderline Personality Disorder is a complex and multifaceted mental health condition characterized by pervasive instability in interpersonal relationships, self-image, emotions, and impulse control. This instability manifests in extreme emotional reactions, fear of abandonment, and self-destructive behaviors. The disorder significantly impacts daily functioning, often leading to distress in both personal and professional domains.
Genetic and Environmental Contributions
Borderline Personality...
Depression: Overview01:18

Depression: Overview

Depression is a prevalent mental illness marked by persistent sadness and lack of interest in previously enjoyable activities. It can take several forms, including major depression, persistent depressive disorder, and bipolar I and II disorders. Symptoms range from emotional changes like chronic worry to physical changes like sleep disturbances and suicidal thoughts. From a neurobiological perspective, depression is believed to be triggered by abnormalities in the brain's prefrontal cortex,...
Depressive Disorders: MDD and Dysthymia01:27

Depressive Disorders: MDD and Dysthymia

Depressive disorders are a group of mental health conditions characterized by pervasive feelings of sadness, diminished pleasure in life, and a significant impact on daily functioning. These conditions are most prevalent in individuals during their 30s and affect women at twice the rate of men. Contrary to popular belief, younger individuals are generally more susceptible to these disorders than older adults. Two key types of depressive disorders include Major Depressive Disorder (MDD) and...
Mania and Antimanic Drugs: Overview01:24

Mania and Antimanic Drugs: Overview

Mania, a psychological condition characterized by elevated mood, increased energy, and reduced sleep need, is part of the bipolar disorder cycle. The exact cause of mania isn't entirely known, but it is thought to be a combination of genetic, environmental, and neurological factors. Bipolar disorder involves alternating manic and depressive episodes. Mood stabilizers like lithium, antipsychotics, and anticonvulsants help manage these episodes. Lithium carbonate is particularly effective as a...
Depressive Disorders: Etiology01:27

Depressive Disorders: Etiology

Depressive disorders result from a complex interplay of biological, psychological, and sociocultural factors, each contributing uniquely to the development and persistence of the condition. Understanding these factors provides critical insight into the multifaceted nature of depression.
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...

You might also read

Related Articles

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

Sort by
Same author

From environmental disasters to emerging drugs; a framework to understand, map and assess drug-related early warning systems.

The International journal on drug policy·2025
Same author

The role of interventional radiology in managing placenta accreta spectrum.

BJA education·2025
Same author

A rapid realist review of clinical neuropsychology rehabilitation programmes to improve psychological wellbeing and quality of life for people with acquired brain injuries.

Neuropsychological rehabilitation·2023
Same author

Differentiating borderline personality disorder (BPD) from bipolar disorder: diagnostic efficiency of DSM BPD criteria.

Acta psychiatrica Scandinavica·2019
Same author

Comparison of guidelines for the treatment of unipolar depression: a focus on pharmacotherapy and neurostimulation.

Acta psychiatrica Scandinavica·2018
Same author

The effects of acaricide treatment of sheep on red grouse Lagopus lagopus scotica tick burdens and productivity in a multi-host system.

Medical and veterinary entomology·2017
Same journal

Developmental Trauma as a Prognostic Factor for Later Psychotic Disorder in an Adolescent Clinical Cohort: A 20-Year Follow Up Study.

Acta psychiatrica Scandinavica·2026
Same journal

The Prevalence of Obstructive Sleep Apnoea in Schizophrenia, Bipolar Disorder and Major Depressive Disorder: A Systematic Review With Meta-Analysis.

Acta psychiatrica Scandinavica·2026
Same journal

Use of Glucagon-Like Peptide 1 Receptor Agonists and the Associated Risk of Hospitalisation in Bipolar Disorder, From a Nationwide Cohort, 2009-2024.

Acta psychiatrica Scandinavica·2026
Same journal

Benzodiazepine Use and Mortality Risk: A Nationwide Cohort Study on New Benzodiazepine Users With a 5-Year Follow-Up.

Acta psychiatrica Scandinavica·2026
Same journal

Leveraging Family Genetic Risk Scores to Understand the Etiology of Suicidal Behaviors and Their Associations With Psychiatric Disorders.

Acta psychiatrica Scandinavica·2026
Same journal

Does the Loss of Autobiographical Memories Contribute to the Therapeutic Effect of Electroconvulsive Therapy?

Acta psychiatrica Scandinavica·2026
See all related articles

Related Experiment Video

Updated: Jun 23, 2026

Developing a Rat Model for Bipolar Disorder
04:42

Developing a Rat Model for Bipolar Disorder

Published on: May 2, 2025

Is bipolar II depression phenotypically distinctive?

G B Parker1, K Fletcher

  • 1School of Psychiatry, University of New South Wales and Black Dog Institute, Prince of Wales Hospital, Randwick 2031, Sydney, Australia. g.parker@unsw.edu.au

Acta Psychiatrica Scandinavica
|April 28, 2009
PubMed
Summary
This summary is machine-generated.

Bipolar II depression shows minimal differences from unipolar depression subtypes. Careful patient matching by age and gender is crucial for accurate diagnosis and understanding depressive symptom profiles.

Related Experiment Videos

Last Updated: Jun 23, 2026

Developing a Rat Model for Bipolar Disorder
04:42

Developing a Rat Model for Bipolar Disorder

Published on: May 2, 2025

Area of Science:

  • Psychiatry
  • Clinical Psychology
  • Mood Disorders

Background:

  • Differentiating bipolar II depression from unipolar depression is clinically significant for treatment.
  • Previous studies suggest distinct symptom profiles, but methodological variations may confound findings.

Purpose of the Study:

  • To compare the depressive symptom profile of bipolar II disorder patients with unipolar depression.
  • To investigate differences based on melancholic and non-melancholic subtypes and symptom severity.

Main Methods:

  • Analysis of out-patients (n=394) from a specialist depression clinic.
  • Assessment of depressive symptom severity and prototypic status.

Main Results:

  • Age-matched analyses showed minimal differentiation between bipolar II and unipolar depression groups.
  • Bipolar II depression more closely resembled melancholic depression regarding psychomotor and cognitive slowing.
  • Symptom severity and rating strategies influenced observed differences, highlighting the role of age and methodology.

Conclusions:

  • Limited differentiation exists between bipolar II depression and unipolar depression subtypes.
  • Observed differences may be attributed to age, gender, and severity variations.
  • Appropriately matched patient groups are essential for defining bipolar II depression accurately.