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Sexy Measures for a Sexy Science: Simple Ways to Incorporate Physiological Measures in Sex Research William S. Ryan SSSS Nov. 14 th, 2015
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What are Physiological Measures? Any type of assessment of biological function
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The Benefits of Physiological Measures Assess process/outcomes not amenable to self-report Allow direct assessment of physiological processes or activation as variables of interest The data is sexy!
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Many physiological measures are: – Expensive – Invasive & Uncomfortable – Tied to laboratory environment – Difficult to analyze BUT…
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Not So Sexy….
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Sexy!
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~1/4 people world-wide owns a smartphone 68% of Canadians, 64% of Americans Contain accelerometers Apps to track health behavior Camera can be used to measure activity of the heart New and improved attachments and software continually emerging Smart Phone Physio
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Uses photoplethysmography (PPG)- the optical measurement of changes in volume in an organ. Phone acts as a pulse oximiter to measure changes in blood flow in the finger How it works
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Azumio’s heart rate pro app ($1.99) and free version. Available for iPhone, android, and Windows phone. www.azumio.com
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Let’s Try it!
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Rest Period Baseline Measurement Task or manipulation Task Measurement Basic Experimental Design Δ HR or Reactivity
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Interpreting our Results Food Condition Sex Condition Baseline Task Reactivity Vs.
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Daily Diary or Experience Sampling – Signal Contingent- take HR when prompted by text message – Interval Contingent- record HR at pre-set intervals (e.g. every few hours or before bed) – Event Contingent- Instruct participants to take their HR whenever a specific event occurs Applications Outside the Laboratory
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Examining HR Over Time
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Exporting Data
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The Data
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HR is an indiscriminant measure of “arousal”, not just the type sexuality researchers are interested in Thus, bounding or documenting context and psychological state is critical HR is impacted by: – Body position – Medication use (e.g. beta blockers) – Caffeine, Nicotine Important Considerations
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Have an in-lab session to install app, ensure participants know how to use it properly, collect a baseline, assess demographic variables Create tags for variables of interest (e.g. upon waking, while watching porn, after sex, etc.) Use automated texting to prompt participants to take reading Combine with questionnaire data and/or have participants comment on mood, setting, etc. in the “notes” section Tips for Implementation
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Other Smart Phone Capabilities Movement Tracking using built in accelerometer
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EquipmentHeart Rate Monitor Blood Pressure Cuff Heat Sensing Camera Capability Continuous HR and Variability (HRV) Blood PressureThermography Application Arousal, task engagement, stress Stress, healthSexual arousal Estimated Price $50-100$50-$100$150-$250 With some added equipment
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With the fitbit fitbit All models track activity and movement For $50.00 per year can download data to excel The Fitbit Charge & Surge provide continuous HR $150-$250 for models with HR Capabilities
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Physiological measures are well-suited to sex research Doesn’t have to break the bank Hardware and software are getting better and cheaper Creates opportunities to assess physiological components of sex and arousal both within and outside the lab Summary
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Thank You! ryan@psych.ucsb.edu
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