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NCT Number: NCT05991713

Geolocation Positional System (GPS) Experience

The purpose of this study is to use smartphone technology to capture individual location emotional and cognitive data, to examine how real-world behaviors thoughts, emotions, and brain activity are related to one another.

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Key information

Conditions

Emotions Anhedonia Behavior Behavioral Symptoms Depression Nervous System Diseases Neurobehavioral Manifestations Neurologic Manifestations Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

18 year–50 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Miami

Coral Gables, Florida, 33146, United States

Location status: Recruiting

About this study

The observational portion of this study was initially approved in 2015, this is a subset of the initially approved study and it is a clinical trial of 100 participants.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Modifying Exploration

Behavioral

Participants in this group will use a mobile phone sensor data application that uses an accelerometer, Wireless Fidelity (WiFi) and/or GPS designed for smartphone devices. This technology allows the phones to capture information automatically and passively on the participant's activity. The application will be collecting participants' data 24 hours a day, 7 days a week. Participants will be asked to make alterations to their exploration levels approximately 20 days of their participation in the study.

Primary outcomes

  1. Change in positive emotional response as measured by ecological momentary assessment

    Time frame: Baseline, up to 6 months

    Emotional response will be measured by computing a total mean score of "happy", "excited", "content", "attentive", "relaxed". The total mean score ranges from 0 to 100, with higher scores indicating greater positive emotional response.

Secondary outcomes

  1. Change in negative emotional response as measured by ecological momentary assessment

    Time frame: Baseline, up to 6 months

    Emotional response will be measured by computing a total mean score of "sad", "tired", "upset", "irritable", "anxious". The total mean score ranges from 0 to 100, with higher scores indicating greater negative emotional response.

Interested in participating?

Recruiting

Interested in participating?

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Sponsors and collaborators

Lead sponsor

University of Miami

Other

Collaborators

  • National Institute of Mental Health (NIMH)

Registry information

Official study title

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

Important dates

Study start
2023
Primary completion
2028
Study completion
2028
First posted
Aug 15, 2023
Registry last updated
May 5, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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