Coherence Network connections

Sensors, Algorithms and Sensations
Ramesh Rao
Director, UCSD Division, Calit2
Qualcomm Professor
Electrical and Computer Engineering
Jacobs School of Engineering
University of California San Diego
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Sensing Devices and Systems
As worn
Gas exchange
GoWear: Calorie
monitors
burn, Galvanic
Skin Response,
near and far skin
temperatures,
ECG Holter
step sensors
monitor
Suunto: Heart
Rate monitor,
foot pod,
temperature and
altitude
Polar: Heart
Rate, stride
and cadence
sensors and
GPS
Accelerometers
RF ID
Algorithmically Derived Metrics
• Excess Post Exercise Oxygen
Consumption
– Disruption of Homeostasis,
Training Effect
• VO2 max
– Adaptation to endurance
• Polar Running Index
– Race completion times
• Heart-Breath Synchronicity
– Relaxation and Meditation
• ZQ
– Quality of Sleep
• FirstBeat athlete
– Stress and Recovery
Refining a Run
Empty Stomach
Energy Gels
Mashed Potatoes
Endura Optimizer
Most organs are regulated
by Parasympathetic and
Sympathetic Nervous
Systems
http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi
?book=neurosci&part=A1394
Influences on the Heart
http://www.medpedia.com/news_analysis/283Project-IVLine/entries/28775-A-Quick-Guide-toECG
http://www.nuclearcardiologys
eminars.net/autonomic.htm
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http://www.dantest.com/usersguide.htm
Balance of Power: Heart Rate Variation
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8 Asanas in 90 minutes: RR between .6 and 1.6 seconds
13.1 miles of running:
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RR held steady at .36 s for 150 minutes
Closer look
Entanglements with Sound and Meaning
Monkey Brain
Ra Ma Da Sa
Sa Say So Hung
Akaal Hari.
Apaal Hari…
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Entrainment (N=2)
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Preliminaries
Morlet Wavelet
Wavelet coherence
N signals Wavelet coherence
Entrainment Network
Coherence Network connections
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A3: Shoulder shrugs (2 minutes), LF and HF
Coherence Network connections
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Interlude, LF and HF
Coherence Network connections
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A4: Pressure against nose bridge (3.5 minutes),
LF and HF
Coherence Network connections
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Interlude, LF and HF
Coherence Network connections
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•
•
Act 5: Ek Ong Kar, Sat Nam Siri, Whahay Guru
11 min.
LF and HF
Coherence Network connections
•
Interlude, LF and HF
Coherence Network connections
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•
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Act. 7: Ek Ong Kar, Sat Gurprasad, Sat Gurprasad, Ek Ong Kar
11 minutes
LF and HF
Real Time
Whistling while Gazing with 500 others for 31
minutes
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healthware.ucsd.edu
Unexpected Encounters
Estimating (Heart) Age
Relations between age and HRV determined by
SDNN index (A), rMSSD (B) and pNN50 (C) in
healthy subjects.
• Solid lines = fitted regression lines and
upper and lower 95% confidence limits.
• Dashed lines = published cutpoints for
increased risk of mortality (SDNN index 30
ms, rMSSD 15 ms, pNN50 0.75%).
"Twenty-Four Hour Time Domain Heart Rate
Variability and Heart Rate: Relations to Age
and Gender Over Nine Decades,"
K Umetani, DH Singer, R McCraty, and M
Atkinson, J. Am. Coll. Cardiol. 1998;31;593601
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Disambiguating RSA, Breathing, Heart Rate
and Emotions
Women with higher resting RSA
experienced and expressed more
negative emotion, and women
who attempted to regulate their
emotions either by suppressing or
reappraising showed larger
increases in RSA than controls.
If RSA changes were indicative of
increases in cardiac vagal tone,
Tests hypotheses: (1) Between-person differences in
and there was no simultaneous
resting RSA are related to emotional reactivity, and (2) increase in cardiac sympathetic
within-person changes in RSA are related to regulatory activity, then we would expect
efforts.
heart rate deceleration in
Pairs of women watched an upsetting film and discussed it. conjunction with the RSA
One woman in each of the experimental dyads was
increases in the suppressors and
asked to either suppress or to reappraise during the
reappraisers. Instead, heart rate
conversation. Their partners and both members of the
increased from baseline to
control dyads conversed naturally. Between-person
conversation equally in all groups.
differences in resting RSA were assessed with paced
breathing, and within-person changes in RSA were
calculated from baseline to the conversation accounting
for respiration.
Sensations to Sense (Algorithmically?)
• Running
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–
–
–
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Patterns of Breath
Shift in Gait
Runny Nose
Retching
Loss of circulation and
numbness in (left) arm
– Knees buckle
• Yoga and Meditation
– Sensing the heart beat
– Sensing pulsations of
blood flow
– Ento-optic patterns
– Sensing electrical
discharge
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Atkinson Hall
Calit2@UCSD
Gait Analysis: April 17th, 2010
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Cardio Hip Hop
 Coherence among 2 out of 4 individuals doing intense
cardio exercise under the supervision of a teacher.
Coherence Plots: 11 minute Chant
"Grinsted, A., Moore, J. C., and
Jevrejeva, S.: Application of the
cross wavelet transform and
wavelet coherence to
geophysical time series,
Nonlin. Processes Geophys.,
11, 561-566, "
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