NCT03711045

An Eye Tracking Study of Affective Disorder Patients With Suicide Risk

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 200 (estimated)
• Sponsor: Central South University · Academic / Other
• Sex: All
• Age: 12 Years – 60 Years
• Healthy volunteers: Accepted

Summary

This research tries to investigate the validity and reliability of eye-tracking technologies by using different paradigms (eg. free-view, pro-saccade and anti-saccade) which served as a novel way of evaluating suicide risk among affective disorder patients including bipolar and unipolar depression. All the participants including health control will be assessed by clinical interviewing, self-report assessment, cognitive evaluation and eye-tracking task.

Conditions

• Major Depressive Disorder
• Bipolar Disorder
• Suicide

Interventions

Type	Name	Description
BEHAVIORAL	eye-tracking	After completing a demographics form, theBeck Depression Inventory,Beck Anxiety Inventory,Barratt Impulsiveness Scale and Ruminative Response Scale-21, each participant has to go to the eye-tracking room and seats in a height adjustable chair and places their chin in a chin rest which was positioned to make sure all participants' eye are in the same location relative to the camera and the monitor. There are 18 trials and 2 filler trials in the free-view task, each of which contains 4 pictures on the same screen for 25 seconds. There is also a gap screen between each trial lasting for 2 seconds when participants were asked to fixate in the center of the screen. During the experiment, participants are instructed to watch the screen as naturally as possible, and the initial location of the fixation of each trial and the total dwell time of each emotional images(negative, happy, neutral and suicide-related)and the changes of the pupil size were recorded.

Timeline

• Start date: 2018-09-01
• Primary completion: 2019-12-31
• Completion: 2019-12-31
• First posted: 2018-10-18
• Last updated: 2018-10-18

Locations

1 site across 1 country: China