a mobile biofeedback self-experiment: stress and eating - georgios papastefanou
TRANSCRIPT
Yorgos PapastefanouLudwigshafen/Germany
One week observation of my sympathetic arousal and my eating behavior
Presentation at theQuantified Self Europe Conference
Amsterdam, 26.11-27.11.2011
Yorgos PapastefanouLudwigshafen/Germany
• What governs my eating behavior?• What is the relationship between my emotional
reactions and my eating behavior?• I know from literature, that stress influences
eating behavior. Stress physiological mechanisms lead to desire for comfortable food (fat, sweet)
• I am doing my personal program for losing weight (eating less and mainly non-cooked vegs and fruits, 1 hour/day crosstrainer)
How did I do it?
sensor wristband push button keypad smartphone camera
•Skin conductivity•Skin temperature•Opto-electric sensor•tri-axial acceleration•Ambient temperature•12 buttons keypad•50 Hz
What I ate/drankWednesday 17.11.2011
Friday 18.11.2011
Saturday 19.11.2011
Sunday 20.11.2011
Monday 21.11.2011
What did I learn? retrospective introspection
• In the beginning it bothered me. It precluded doing homework. After one day I got used to the wristband (but did not more homework).
• It was kind of satisfying to mark my hungry feelings.
• I liked to measure myself (esp. pushing the hunger marker). I missed it after stopping. This experience pointed me to social psychology of objective self-awareness.
What did I learn? Quantitative analysis
020
4060
8010
0hu
nger
feel
ing
inte
nsity
02
46
8sk
in c
ondu
ctiv
ity re
spon
se in
tens
ity
21no
v201
1 06:1
0:00
21no
v201
1 07:3
3:20
21no
v201
1 08:5
6:40
21no
v201
1 10:2
0:00
21no
v201
1 11:4
3:20
21no
v201
1 13:0
6:40
21no
v201
1 14:3
0:00
21no
v201
1 15:5
3:20
21no
v201
1 17:1
6:40
21no
v201
1 18:4
0:00
date/time
That’s it for now.
More information:
www.bodymonitor.dewww.gesis.org