5 - Physiological Synchrony Flashcards
1
Q
Types of interactions
A
- performer/performer
- performer/audience
- audience/audience
2
Q
Behavioural vs. physiological synchrony
A
- behavioural = synchronized motor behaviour
- physiological = can occur with or without motor behaviour
3
Q
EEG
A
- electroencephalography
- non-invasive recording of brain electrical activity (electrodes)
- hyperscanning = scanning more than one person
4
Q
RQA and CRQA
A
- recurrence quantification analysis (intrapersonal)
- cross RQA (interpersonal)
5
Q
Time series and recurrence plots
A
- time series = recurrence of a particular parameter
- recurrence plot = same time series on both axes
6
Q
Lindenberger - Electrodes of interest
A
- F3, FZ, F4
- C3, CZ, C4
- fronto-central electrodes
7
Q
Brain waves
A
- beta (14 - 30 Hz)
- alpha (8 - 13 Hz)
- phi (9.2 - 11.5 Hz)
- theta (4 - 7 Hz)
- delta (< 3.5 Hz)
8
Q
Frequency and phase matching
A
- frequency and phase matching
- frequency but no phase matching (syncopation)
- no frequency or phase matching
- completely out of phase = antiphase
9
Q
Konvalinka - Study
A
- physiological in the absence of behavioural synchrony
- naturalistic setting (Spain)
10
Q
Konvalinka - IVs
A
- relatedness to firewalker (between-subject, 3 levels) = related, tangentially related, unrelated
- source epoch (within-subject, 2 levels) = baseline, ritual
11
Q
Konvalinka - DVs
A
- heart rate (bpm)
- predictability
- stability
- complexity
- smoothness
12
Q
Konvalinka - Typologies (recurrence plots)
A
- disrupted = abrupt changes in dynamics (firewalkers and related)
- drift = pattern fades due to slowly varying parameters (unrelated)
13
Q
Konvalinka - Main Results
A
- recurrence plots showed a similar typology between fire-walkers and related spectators, and both were different from the typology of unrelated spectators
- cross-recurrence plots showed a similar typology between fire-walkers and both related and tangentially-related spectators
- both were different from the typology between fire-walkers and unrelated spectators
- CRQA analysis (MANOVA) showed greater structuring and shared dynamics between fire-walkers and both related spectators and tangentially-related spectators
- both were higher than the same parameters when pairing fire-walkers with unrelated spectators
- CRQA analysis also showed greater structuring and shared dynamics during the ritual than during the pre-ritual baseline condition
14
Q
Konvalinka - Summary
A
- a public ritual is able to evoke synchronized arousal between participants and spectators
- this occurs in the absence of synchronized action
- however, the effect seems to vary across spectators
- relatedness to the performer (i.e. shared membership in the group) is one factor that modulates this
15
Q
Lindenberger - Study
A
- guitar duos, 8 pairs
- stimulus melody (Fusion #1)
- epoch time-locked to two events = 2nd metronome beat (prep), start of guitar A (play onset)
