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. 2021 Jan 21;11:574386. doi: 10.3389/fneur.2020.574386

Table 5.

List of open-ended comments/changes noticed by participants outside the laboratory setting, during or after the study.

No. of participants commenting in each category Participant description of reported change
A) Real LED treatment series
Increased concentration 4 At work; at home; for everyday activities
Increased relaxation 4
Improved sleep 3 Described as more, restful, better, good
“Helped/better” but could not elaborate 3 “Happy with treatment”
Increased work or social activity 2 Both participants report being previously withdrawn or not motivated. One returned to college, finished degree; then hired in new, Executive level position with a State Veterans Organization. One started group PTSD therapy, wellness and yoga, and felt he was able to be more social
Tests/activities easier 2
Decreased pain 2 Both decreased joint/muscle pain
Decrease in migraines 2 Both diagnosed with history of cluster migraines; these completely disappeared
Improved gastro-intestinal problems 1 No longer stopped to use the bathroom several times on trip home
Improved cognition 1
Decreased nightmares 1 Patient decided to reduce medications for nightmares/sleep (but this resulted in increased emotional lability); same participant as below
Increased emotional lability 1 Occurred for about 2 weeks after reduction in nightmare medications
Decreased anxiety 1
B) Sham LED treatment series
Increased activity 1
Increased concentration 1
Improved memory 1 Memory seems better
Improved focus 1
Worse sleep 1
Increased wakefulness 1 Attributed to naps during treatment

A total of 10/48 participants offered comments as categorized here.