Psychophysiological Effects of Birdsongs VS Music

NCT ID: NCT06581445

Last Updated: 2024-09-03

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 89 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2023-05-16
• Study Completion Date: 2023-12-07

Brief Summary

The main goal of this study is to learn the psychophysiological effects of birdsongs on sadness. The main questions it aims to answer are:

1. Can birdsongs alleviate sadness in a short term?

2. Can birdsongs have greater impact on sadness than music?

3. Can birdsongs alleviate sadness for both non-depressed and depressed participants?

Researchers will compare birdsongs to music (a active control) to see if birdsongs works to reduce sadness and also examined the psychophysiological effects of birdsongs in depressed and non-depressed participants.

Participants will:

go through the following stages: baseline, neutral control, 1st sadness induction, 1st intervention, calculation task, 2nd sadness induction, and 2nd intervention.

Detailed Description

During the baseline phase, participants were instructed to sit quietly and relax. For the neutral control, they viewed an informative video demonstrating the process of plastic injection molding. As for the sadness induction, they were presented with sad film clips from either Hachi: A Dog's Tale or My Brother and Sister. The order of the sad videos was randomized across participants. The intervention stages involved listening to either the cheerful Cuckoo Waltz music or a clip of birdsongs from laughing thrushes. The order of the interventions was randomized as well. The calculation task was employed as a distracter, enabling participants to return to a neutral state. Except for the computational task, the remaining six phases each had a duration of 6 minutes.

Conditions

Sadness

Study Design

• Allocation Method: NON_RANDOMIZED
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: SUPPORTIVE_CARE
• Blinding Strategy: SINGLE

Study Groups

Depressed group

The participants were categorized into two groups using the Patient Health Questionnaire (PHQ-9) and the 17-item Hamilton Depression Rating Scale (HAM-D). PHQ-9 is a self-report scale. PHQ-9 scores of 5 or higher represent mild and severe depression, while PHQ-9 scores of lower than 5 mean normal condition. HAM-D is a scale administered by a healthcare professional. The cut-off point of the HAM-D scale is 8, which divides normal conditions from depressive conditions. The participants first completed PHQ-9. For those with PHQ-9 scores of 5 or higher, the trained researchers interviewed them and rated their severity of depression on the HAM-D. The participants first completed PHQ-9.

For those with PHQ-9 scores ≥ 5, the trained researchers interviewed them and rated their severity of depression on the HAM-D. Those with HAM-D scores > 8 were classified into the depressed group.

Group Type: EXPERIMENTAL

Birdsongs

Intervention Type: BEHAVIORAL

The participants listened to a clip of birdsongs from laughing thrushes.

Music

Intervention Type: BEHAVIORAL

The participants listened to a cheerful Cuckoo Waltz music.

Non-depressed group

Those with PHQ-9 scores \< 5 or HAM-D scores ≤ 8 were classified into the non-depressed group.

Group Type: EXPERIMENTAL

Birdsongs

Intervention Type: BEHAVIORAL

The participants listened to a clip of birdsongs from laughing thrushes.

Music

Intervention Type: BEHAVIORAL

The participants listened to a cheerful Cuckoo Waltz music.

Interventions

Birdsongs

The participants listened to a clip of birdsongs from laughing thrushes.

Intervention Type: BEHAVIORAL

Music

The participants listened to a cheerful Cuckoo Waltz music.

Intervention Type: BEHAVIORAL

Eligibility Criteria

Inclusion Criteria

• Aged 18-30 years
• Right-handed
• No recent illness or medication use
• No history of neurological or psychiatric disorders
• Normal or corrected-to-normal visual acuity (myopic participants wore glasses)
• Normal hearing

Exclusion Criteria

• Incapable of giving written informed consent to this study
• Acute high suicide risk at baseline assessment
• Psychosis

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 30 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Zhejiang University

OTHER

Sponsor Role: lead

Responsible Party

Shulin Chen

Professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Zhejiang University

Hangzhou, Zhejiang, China

Countries

China

Other Identifiers

Effects of Birdsongs

Identifier Type: -

Identifier Source: org_study_id