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

Long-term Depression01:03

Long-term Depression

2.6K
Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
If over...
2.6K
Stress and Mental Health01:30

Stress and Mental Health

176
Chronic stress profoundly affects mental health, significantly influencing mood, behavior, and overall quality of life. Research closely links chronic stress with mental health conditions such as depression, anxiety, and substance use disorders. Ongoing exposure to stress can lead to physiological and psychological changes, initiating a cycle of emotional distress and maladaptive coping mechanisms.
Individuals with depression often experience challenges in both their personal and professional...
176
Depressive Disorders: Etiology01:27

Depressive Disorders: Etiology

114
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...
114
Depression: Overview01:18

Depression: Overview

271
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,...
271
Social Anxiety Disorder01:28

Social Anxiety Disorder

45
Social anxiety disorder, also known as social phobia, is characterized by an intense fear of social situations where one might face humiliation, rejection, embarrassment, or negative evaluation. This disorder leads individuals to avoid activities like casual conversations, public speaking, or seemingly simple tasks such as eating, signing documents, or swimming, in public settings. Its impact extends beyond discomfort, often significantly interfering with daily functioning and quality of life.
45
Bias in Epidemiological Studies01:29

Bias in Epidemiological Studies

339
Biases can arise at various stages of research, from study design and data collection to analysis and interpretation. Recognizing and addressing these biases is essential to ensure the validity and reliability of epidemiological findings.Broadly speaking, biases in epidemiology fall into three main categories: selection bias, information bias, and confounding. A more detailed description of possible biases is:  
339

You might also read

Related Articles

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

Sort by
Same author

Diet of the lesser-grison, Galictis cuja (Mammalia, Carnivora): a review and new data from the Brazilian semiarid Caatinga.

Brazilian journal of biology = Revista brasleira de biologia·2025
Same author

Machine learning models' assessment: trust and performance.

Medical & biological engineering & computing·2024
Same author

Coronavirus disease 2019 related parosmia: an exploratory survey of demographics and treatment strategies.

The Journal of laryngology and otology·2023
Same author

An interpretable machine learning approach to estimate the influence of inflammation biomarkers on cardiovascular risk assessment.

Computer methods and programs in biomedicine·2023
Same author

Unravelling the effects of treated wastewater discharges on the water quality in a coastal lagoon system (Ria Formosa, South Portugal): Relevance of hydrodynamic conditions.

Marine pollution bulletin·2022
Same author

The Mortality After Release from Incarceration Consortium (MARIC): Protocol for a multi-national, individual participant data meta-analysis.

International journal of population data science·2020
Same journal

Effect of Australian telepsychiatry services on attention-deficit hyperactivity disorder prescriptions.

Psychiatry research·2026
Same journal

Cognitive correlates of Antisaccade Task performance in bipolar disorder.

Psychiatry research·2026
Same journal

National estimates of exposure to potentially traumatic events among individuals with obsessive-compulsive disorder: Findings from The National OCD Survey.

Psychiatry research·2026
Same journal

Digitally delivered cognitive bias modification for interpretation targeting hostile interpretation bias in compulsory drug rehabilitation: A feasibility randomized trial.

Psychiatry research·2026
Same journal

Association of TyG-RFM with depressive symptoms: a nationally representative study enhanced by interpretable machine learning.

Psychiatry research·2026
Same journal

Cross-national patterns of probable complex PTSD in post-communist Europe: A network analysis of five countries.

Psychiatry research·2026
See all related articles

Related Experiment Video

Updated: Jul 15, 2025

Breakfast Habits among Schoolchildren in the City of Uruguaiana, Brazil
06:48

Breakfast Habits among Schoolchildren in the City of Uruguaiana, Brazil

Published on: July 29, 2020

4.6K

Decrease in suicide rates in Brazil during the COVID-19 pandemic.

S Cabral1, T Rocha2, S Caetano3

  • 1Unidade de Psiquiatria, Hospital de Base, Instituto de Gestão Estratégica de Saúde do Distrito Federal (IGESDF), Distrito Federal, DF, Brazil; Departamento de Psiquiatria e Psicologia Médica, Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.

Psychiatry Research
|September 28, 2023
PubMed
Summary
This summary is machine-generated.

The COVID-19 pandemic saw a decrease in suicide rates in Brazil. However, COVID-19 deaths were linked to a delayed increase in suicide deaths, requiring further study on public health events and suicidality.

Keywords:
BehaviorDeathEpidemicPublic health

More Related Videos

A New Method for Inducing a Depression-Like Behavior in Rats
07:57

A New Method for Inducing a Depression-Like Behavior in Rats

Published on: February 22, 2018

21.0K
Social Isolation Model: A Noninvasive Rodent Model of Stress and Anxiety
04:20

Social Isolation Model: A Noninvasive Rodent Model of Stress and Anxiety

Published on: November 11, 2022

4.3K

Related Experiment Videos

Last Updated: Jul 15, 2025

Breakfast Habits among Schoolchildren in the City of Uruguaiana, Brazil
06:48

Breakfast Habits among Schoolchildren in the City of Uruguaiana, Brazil

Published on: July 29, 2020

4.6K
A New Method for Inducing a Depression-Like Behavior in Rats
07:57

A New Method for Inducing a Depression-Like Behavior in Rats

Published on: February 22, 2018

21.0K
Social Isolation Model: A Noninvasive Rodent Model of Stress and Anxiety
04:20

Social Isolation Model: A Noninvasive Rodent Model of Stress and Anxiety

Published on: November 11, 2022

4.3K

Area of Science:

  • Epidemiology
  • Public Health
  • Mental Health Research

Background:

  • Public health emergencies, like epidemics, can influence suicide rates.
  • The COVID-19 pandemic presented unique global health challenges.

Purpose of the Study:

  • To analyze changes in suicide rates during the COVID-19 pandemic in Brazil.
  • To investigate the correlation between COVID-19 mortality and suicide rates.

Main Methods:

  • Retrospective ecological study utilizing weekly data on suicides and COVID-19 cases from Brazil's Ministry of Health.
  • Time series analysis, comparative analysis of pre- and during-pandemic suicide rates, and Poisson regression were employed.

Main Results:

  • A decrease in suicide rates was observed during the COVID-19 pandemic.
  • A lagged, upward relationship was found between COVID-19 deaths and suicide deaths after 10 weeks, though not long enough to alter the suicide rate curve.

Conclusions:

  • The study provides insights into suicidal behaviors during epidemic contexts.
  • Further research with extended follow-up is necessary to fully understand the impact of major public health events on suicidality.