Physiological Measures (4a) Flashcards
2 nervous systems
central nervous system
peripheral nervous system
parts of the CNS
brain
nerves in spinal cord
parts of the PNS
nerves and ganglia outside the brain and spinal cord
2 types of PNS
somatic nervous system
autonomic nervous system
somatic nervous system (SNS)
voluntary control of sense and muscle movement
autonomic nervous system (ANS)
- subconscious body control
- controls visceral functions (e.g.,g heart, respiration rates, digestion, pupil dilation, sexual arousal)
afferent
into CNS
efferent
out of CNS
2 parts of autonomic nervous system
parasympathetic nervous system
sympathetic nervous system
nervous system for rest and digestion
parasympathetic nervous system
nervous system for flight, fight of freeze
sympathetic nervous system
2 dimensional model of valence and arousal
high/ low arousal - energy
negative/ positive valence
arousal measures
- activation/ intensity/ tension/ vigor
- the activity of autonomic and somatic nervous system
arousal measures methods
- electrocardigram
- photoplethysmography
- electroderman activity
- respiratory and breathing rate belts
- electrooculagraphy
- eye-tracking
most common approaches for heart monitoring
electrocardiogram (ECG)
photoplethusmograph (PPG)
- measures reflection of the illuminated light from an oximeter onto the skin
- monitors the changes of the absorption of light resulted from blood-volume’s changes
advantages of PPG
- able to detect the cardiac cycle from the area of the skin where the PPG is applied to
- close proximity to the surface of skin
- does not rely on electrical activity
- unobtrusive
- cost effective
- effortless applications
disadvantages of PPG
- signal less detailed
- can be subjected to noise artefacts
- effect of other physiological parameters that can affect the blood flow
measurements/ signal features from ECG and PPG
- R-R intervals
- heart rate (bpm / variability)
- blood pressure
- breathing rate
valence measures: body movements
- head and body tracking technologies
- via microscopic sensory that can be emdedded in wearable solutions and clothing
inertial measurement unit
the evaluative space model
- general model of valence of evaluative experience
- suggests that the experience of valence comprises 2 affective components
2 affective components of the evaluative space model
- appetitive
- aversive
- impact our predispositions towards and against them
