The Effect of Visual Attention on Heart Rate Variability and Respiratory Rate Variability During White Noise

The Effect of Visual Attention on Heart Rate Variability and Respiratory Rate Variability During White Noise in Medical Students of Alborz University

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20190406043176N1

Enrollment

Registered

2019-04-08

Start date

2019-10-23

Completion date

Unknown

Last updated

2019-04-23

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

Conditions

Attention. Disturbance of activity and attention

Interventions

Intervention 1: Control group: First, for 20 minutes, the person taking the test is seated in the laboratory without any stimuli. In the second step, it will be recorded in the same non-stimulating st

Eligibility

Sex/Gender

All

Age

18 Years to 25 Years

Inclusion criteria

Inclusion criteria: Age between 18-25 years Medical students Normal vision and audition

Exclusion criteria

Exclusion criteria: Chronic disease Professional athletes Using of treatment and stimulants

Design outcomes

Primary

Measure	Time frame
Heart rate variability. Timepoint: Measurement of dynamic heart rate changes in the first 20 minutes and the second 20 minutes with the research process in each group. Method of measurement: Electrocardiogram recording via analog to digital conversion device the BIODAC ER21 model, Trita Healthcare Technology Company, will be analyzed through the MATLAB program.;Respiratory rate variability. Timepoint: Measurement of dynamic respiratory rate changes in the first 20 minutes and the second 20 minutes with the research process in each group. Method of measurement: Respiratory pattern recording via analog to digital conversion device the BIODAC ER21 model, Trita Healthcare Technology Company, will be analyzed through the MATLAB program.	—

Measure

Time frame

Heart rate variability. Timepoint: Measurement of dynamic heart rate changes in the first 20 minutes and the second 20 minutes with the research process in each group. Method of measurement: Electrocardiogram recording via analog to digital conversion device the BIODAC ER21 model, Trita Healthcare Technology Company, will be analyzed through the MATLAB program.;Respiratory rate variability. Timepoint: Measurement of dynamic respiratory rate changes in the first 20 minutes and the second 20 minutes with the research process in each group. Method of measurement: Respiratory pattern recording via analog to digital conversion device the BIODAC ER21 model, Trita Healthcare Technology Company, will be analyzed through the MATLAB program.

—

Secondary

Measure	Time frame
Linear indices. Timepoint: First 20 minutes and second 20 minutes. Method of measurement: MATLAB Software.;Nonlinear indices. Timepoint: First 20 minutes and second 20 minutes. Method of measurement: MATLAB Software.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactRoham Mazloom

Alborz University of Medical Sciences

rohammazloom@abzums.ac.ir+98 26 3428 7315

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026