Using smartphone GPS to study emotions and behaviors

Individual Differences in Emotional and Behavioral Patterns and Their Relationship to Cognition

Not applicable Interventional University of Miami · NCT05991713

This study is trying to see how people's feelings and thoughts change in different places by using smartphone GPS and brain scans over four months.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment100 (estimated)
Ages18 Years to 50 Years
SexAll
SponsorUniversity of Miami Academic / other
Locations1 site (Coral Gables, Florida)
Trial IDNCT05991713 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to utilize smartphone technology to gather data on participants' locations, emotions, and cognitive states in real-time. By employing a GPS tracking application and conducting functional Magnetic Resonance Imaging (fMRI) scans, the study seeks to explore the connections between real-world behaviors, thoughts, emotions, and brain activity. The trial will involve 100 participants who will receive daily text messages to assess their current emotional states over a four-month period. This innovative approach allows for a comprehensive understanding of how environmental factors influence mental health.

Who should consider this trial

Good fit: Ideal candidates for this study are individuals who can provide informed consent, are willing to undergo fMRI scans, and can engage with daily emotional assessments via text.

Not a fit: Patients with a history of severe neurological disorders, pregnancy, or those on antipsychotic medications may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into the relationship between emotions and behaviors, potentially leading to improved treatments for depression and related conditions.

How similar studies have performed: While the use of smartphone technology in mental health research is growing, this specific approach combining GPS tracking with fMRI is relatively novel and has not been extensively tested in prior studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Must agree to give informed consent
* Must be willing to have an functional Magnetic Resonance Imaging (FMRI) scan
* Must be able to receive and respond to daily text messages assessing current emotion
* Must be willing to download and run a GPS tracking application (FollowMee) onto their smartphone for a four-month period

Exclusion Criteria:

* history of head trauma, seizures, or neurological disorders
* severe/unstable medical conditions
* conditions that interfere with MRI
* pregnancy
* lifetime psychotic/bipolar disorder
* chronic/severe substance or alcohol abuse/dependence
* antipsychotic medication

Where this trial is running

Coral Gables, Florida

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions EmotionsAnhedoniaDepression
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.