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CompletedNCT05413512Updated Jun 24, 2025Results posted

Stressor-evoked Brain and Cardiovascular Responses to Acute Psychological Stress

An interventional study of Acute psychological stress in Acute Psychological Stress, sponsored by Baylor University. Completed at 1 site in United States. Open to participants aged 18 Years to 30 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-06-24.

Sponsored by Baylor University · Not applicable, Interventional, and Basic science

From the registry’s dates

  • Registered 2 years 3 months after the study started (first participant enrolled Mar 2020, registered Jun 2022).
Phase
Not applicable
Study type
Interventional
Enrollment
170
Allocation
Not applicable
Ages
18 Years to 30 Years
Sex
All
01

Study summary

The present study will examine cardiovascular, metabolic, and neural responses to acute psychological stress using a cross-sectional approach.

Read the detailed description

All participants in this study will undergo an acute psychological stress paradigm, consisting of two acute psychological stress tasks (MSIT and Stoop). There is no formal randomization since al participants are randomized to undergo the acute psychological stress tasks.

02

Conditions studied

  • Acute Psychological Stress
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In context

Lead sponsor

Baylor University is the lead sponsor of 40 studies on the registry; 9 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 30 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • 18-30 years old

Exclusion criteria

Exclusion Criteria:

  • Chronic medical or neurological condition
  • Pregnant
  • Current illness or infection
  • Any condition that would prohibit engaging in physical exercise
  • Any metal implants in body
  • Claustrophobia
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Study design

Phase
Not applicable
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
170 participants (actual)

Study arms

  • Experimental
    Acute psychological stress task (MSIT; Stroop)

    Multi-source interference task (MSIT; Stroop)

    Other: Acute psychological stress

Interventions

  • OtherAcute psychological stress

    Experimental: Acute psychological stress Two, acute-psychological stress tasks known to reliably elicit a cardiovascular responses (Multi-source interference task; Stroop).

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What researchers measure

Primary outcomes

  1. Stressor-evoked Oxygen Consumption in mL/(kg·Min) (Stress - Baseline)

    Stressor-evoked oxygen consumption. (Oxygen consumption during acute psychological stress task - Oxygen consumption during resting baseline).

    Time frame: 18 minutes (approximately 9 minutes for each task)

  2. Heart Rate (Bpm) Measured by Electrocardiogram

    Stressor-evoked heart rate. (Heart rate during acute psychological stress task - Heart rate during resting baseline).

    Time frame: 18 minutes (approximately 9 minutes for each stress task)

  3. Neural Activity Measured by fMRI

    Stressor-evoked neural activity. Incongruent-vs-Congruent t at the group-level, filtered at 0.05 after FDR correction and with a cluster extent of 50 voxels.

    Time frame: 18 minutes (approximately 9 minutes for each stress task).

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Results

Posted Jun 24, 2025

Participant flow

Recruited in Waco, Texas area

Participant flow — Overall Study
MilestoneAcute Psychological Stress
Started170
Completed170
Not completed0

Outcome measures

PrimaryStressor-evoked Oxygen Consumption in mL/(kg·Min) (Stress - Baseline)

Stressor-evoked oxygen consumption. (Oxygen consumption during acute psychological stress task - Oxygen consumption during resting baseline).

Time frame:
18 minutes (approximately 9 minutes for each task)
Reported as:
Mean · mL/(kg·min)
Stressor-evoked Oxygen Consumption in mL/(kg·Min) (Stress - Baseline)
mL/(kg·min)Acute Psychological Stress Task
Stroop task0.265 ± 0.452
MSIT task0.287 ± 0.431
PrimaryHeart Rate (Bpm) Measured by Electrocardiogram

Stressor-evoked heart rate. (Heart rate during acute psychological stress task - Heart rate during resting baseline).

Time frame:
18 minutes (approximately 9 minutes for each stress task)
Reported as:
Mean · beats per minute (bpm)
Heart Rate (Bpm) Measured by Electrocardiogram
beats per minute (bpm)Acute Psychological Stress
Stroop task4.926 ± 7.456
MSIT2.826 ± 6.317
PrimaryNeural Activity Measured by fMRI

Stressor-evoked neural activity. Incongruent-vs-Congruent t at the group-level, filtered at 0.05 after FDR correction and with a cluster extent of 50 voxels.

Time frame:
18 minutes (approximately 9 minutes for each stress task).
Reported as:
Mean · BOLD signal (Incon - Con)
Neural Activity Measured by fMRI
BOLD signal (Incon - Con)Acute Psychological Stress
L Parietal_inf (stroop)0.71 ± 0.41
R Angular (stroop)0.54 ± 0.35
R Supp_Motor_Area (stroop)1 ± 0.65
L Frontal_Inf_Tri (stroop)0.85 ± 0.56
L Parietal_Inf2 (stroop)0.66 ± 0.45
R Insula (stroop)0.70 ± 0.50
R Frontal_Inf_Oper (stroop)0.76 ± 0.60
R Vermis (stroop)0.84 ± 0.68
R Thalamus (stroop)0.48 ± 0.40
L Precuneus2 (stroop)-0.55 ± 0.52
L ParaHippocampal2a (stroop)-0.47 ± 0.50
L Angular2 (stroop)-0.49 ± 0.54
L Frontal_Med_Orb2 (stroop)-1.38 ± 1.57
L Frontal_Sup2 (stroop)-0.55 ± 0.66
L ParaHippocampal2 (stroop)-0.47 ± 0.58
R ParaHippocampal2 (stroop)-0.35 ± 0.46
R Precentral2 (stroop)-0.20 ± 0.31
R Rolandic_Oper2 (stroop)-0.19 ± 0.33
R Angular2 (stroop)-0.23 ± 0.45
R Amygdala2 (stroop)-0.21 ± 0.43
R Frontial_Sup2 (stroop)-0.24 ± 0.54
R Cerebelum_Crus2 (stroop)-0.29 ± 0.91
L Parietal_Inf (MSIT)0.50 ± 0.40
R Parietal_Inf (MSIT)0.49 ± 0.43
R Angular (MSIT)0.35 ± 0.31
L Supp_Motor_Area (MSIT)0.49 ± 0.45
L Frontal_Inf_Oper (MSIT)0.54 ± 0.52
R Calcarine (MSIT)0.45 ± 0.48
R Frontal_Inf_Oper (MSIT)0.49 ± 0.53
R Insula (MSIT)0.49 ± 0.54
R Frontal_Mid (MSIT)0.31 ± 0.37
L Thalamus (MSIT)0.32 ± 0.39
L Frontal_Mid_Orb (MSIT)0.25 ± 0.53
L Cingulum_Mid2 (MSIT)-0.40 ± 0.41
L Angular2 (MSIT)-0.51 ± 0.62
L Frontal_Sup2 (MSIT)-0.43 ± 0.52
L Frontal_Med_Orb2 (MSIT)-1.06 ± 1.33
R Hippocampus2 (MSIT)-0.24 ± 0.37
R Angular2 (MSIT)-0.27 ± 0.46
R Insula2 (MSIT)-0.21 ± 0.35
R Temporal_Mid2 (MSIT)-0.32 ± 0.63
R Cerebellum_Crus2 (MSIT)-0.42 ± 0.83
R Precentral2 (MSIT)-0.10 ± 0.30
L Cerebellum_Crus2 (MSIT)-0.26 ± 0.88

Adverse events

Collected over 4 total hours (participants were monitored during each of the 2 hour lab visits).. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Acute Psychological Stress0/170 (0%)0/170 (0%)0/170 (0%)

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Acute Psychological Stress
<=18 years0
Between 18 and 65 years170
>=65 years0
Age, Continuous
Age, Continuous(years)Acute Psychological Stress
Mean22.08 ± 2.93
Sex: Female, Male
Sex: Female, Male(Participants)Acute Psychological Stress
Female87
Male83
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Acute Psychological Stress
Hispanic or Latino38
Not Hispanic or Latino132
Unknown or Not Reported0
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Acute Psychological Stress
American Indian or Alaska Native3
Asian30
Native Hawaiian or Other Pacific Islander0
Black or African American21
White103
More than one race13
Unknown or Not Reported0
Region of Enrollment
Region of Enrollment(Participants)Acute Psychological Stress
United States170
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Study locations

1 site
  • Baylor University
    Waco, Texas 76799, United States
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References and documents

Study documents

  • Protocol and statistical analysis plan · Feb 20, 2020

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — There is no plan to share IPD with other rsearchers.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 24, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05413512
Lead sponsor
Baylor University
Collaborators
National Heart, Lung, and Blood Institute (NHLBI)
Responsible party
Annie Ginty (Assistant Professor, Baylor University) — Principal investigator
First posted
Jun 10, 2022
Start date
Mar 2, 2020
Primary completion
Sep 30, 2021
Completion
Sep 30, 2021
Results posted
Jun 24, 2025
Last update
Jun 24, 2025

Study contacts

Annie Ginty, PhD
principal investigator · Baylor University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jun 2025. You cannot join it, but the record below documents what was studied.

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