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Effects of Electrical Stimulation in the head or ear region in adults with chronic stress

Effects of Transcranial Direct Current Stimulation on the right and left dorsolateral prefrontal cortex or Non-Invasive Vagus Nerve Stimulation in adults with Chronic Stress

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-2ww2ts8
Enrollment
Unknown
Registered
2023-11-22
Start date
2022-02-01
Completion date
Unknown
Last updated
2025-10-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Psychological Stress

Interventions

Sponsors

Universidade Federal de Alfenas
Lead Sponsor
Universidade Federal de Alfenas
Collaborator

Eligibility

Age
20 Years to 50 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria consider individuals diagnosed with stress; Lipp adult stress symptom inventory score above 4; cognitive ability to read and interpret the purpose of the research and to respond to assessment instruments; and knowledge and consent of the free and informed consent form; Male or female volunteers aged between 20 and 50 will be recruited

Exclusion criteria

Exclusion criteria: Os critérios de exclusão são indivíduos fumantes; com história de tontura ou convulsão; gravidez; sinais de gravidade e/ou indicações de internação ou psicoterapia; uso de ansiolíticos; uso de antidepressivos; efeitos adversos detectados no grupo tratado com tDCS e taVNS, entre os quais coceira, formigamento, dor de cabeça, ardor, sensação e desconforto; diagnóstico de depressão; diagnóstico de ansiedade; transtorno de humor bipolar com sintomas depressivos, maníacos ou hipomaníacos no último ano; esquizofrenia ou outros transtornos psicóticos; autismo; dependência de substâncias; diagnóstico de epilepsia ou uso de anticonvulsivantes; contraindicações para a TDCS (implantes metálicos, tumor, cirurgias cerebral prévia, alteração anatômica cranioencefálica importante); contraindicações para a estimulação não invasiva do nervo vago (implante coclear, cirurgia plástica na orelha, má formação na orelha); iniciar e/ou intensidade de estimulação (mA), a largura de pulso (duração do pulso elétrico, ms), a frequência de pulso (Hz), e a relação on/off do ciclo de estímulo (medido em segundos ou minutos) são ajustados para otimizar a eficácia e tolerabilidade, porém ainda são um assunto a ser debatido.

Design outcomes

Primary

MeasureTime frame
Expected outcome 1. It is expected to find a reduction in symptom intensity, perception of stress, and improvement in sleep after the treatment period and one month after the end of the interventions. This will be verified through the reduction of the score on the Lipp's Adult Stress Symptom Inventory (ISSL), the Perceived Stress Scale (PSS-10), and the Pittsburgh Sleep Quality Index (PSQI), respectively. This is based on observing a variation of at least 5% in the pre, post-intervention, and one-month follow-up measurements;Outcome found 1: A reduction in symptom intensity and perception of stress, as well as an improvement in sleep, was observed after the treatment period and one month after the end of the interventions. This was verified by the reduction of the score on Lipp's Adult Stress Symptom Inventory (ISSL), the Perceived Stress Scale (PSS-10), and the increase in the Pittsburgh Sleep Quality Index (PSQI), respectively. This is based on observing a variation of at least 5% in the pre, post-intervention, and one-month follow-up measurements

Secondary

MeasureTime frame
No secondary outcomes expected

Countries

Brazil

Contacts

Public ContactJosie Silva

Universidade Federal de Alfenas

josie.resende@unifal-mg.edu.br+55 35 99220-8448

Outcome results

None listed

Source: REBEC (via WHO ICTRP) · Data processed: Feb 5, 2026