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codebook
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codebook
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This is a codebook for the different data files in this repository.
1. demographics.csv
This file contains the following data:
Subject - Unique participant ID
Treatment - Oxazepam or placebo group
Wave - 0 are pilot participants, 1 is wave 1, and 2 is wave 2
Included_EP - Whether participants have been included in the empathy for pain experiment
Included_FMOV - Whether participants have been included in the emotional contagion experiment
Included_atleastone - Whether participants have been included in either of the above
VAS10_before - Volts required to reach VAS 10 in pain threshold titration before the experiment
VAS10_after - Volts required to reach VAS 10 in pain threshold titration after the experiment
VAS80_before - Volts required to reach VAS 80 in pain threshold titration before the experiment
VAS80_after - Volts required to reach VAS 80 in pain threshold titration after the experiment
Guessed.group - Participants' guesses after the experiment as to which arm they were in. 5-point Likert-type scale with responses given as text strings.
IRI_EC - Interpersonal Reactivity Index, Empathic Concern subscale
IRI_PT - Interpersonal Reactivity Index, Perspective Taking subscale
IRI_PD - Interpersonal Reactivity Index, Personal Distress subscale
IRI_F - Interpersonal Reactivity Index, Fantasy subscale
IRI_scrambled_EC - Interpersonal Reactivity Index, Empathic Concern subscale, administered with items in scrambled order at end of experiment (wave 2 only)
IRI_scrambled_PT - Interpersonal Reactivity Index, Perspective Taking subscale, administered with items in scrambled order at end of experiment (wave 2 only)
IRI_scrambled_PD - Interpersonal Reactivity Index, Personal Distress subscale, administered with items in scrambled order at end of experiment (wave 2 only)
IRI_scrambled_F - Interpersonal Reactivity Index, Fantasy subscale, administered with items in scrambled order at end of experiment (wave 2 only)
IRI_retest_EC - Interpersonal Reactivity Index, Empathic Concern subscale, administered by mail after experiment (wave 1 only)
IRI_retest_PT - Interpersonal Reactivity Index, Perspective Taking subscale, administered by mail after experiment (wave 1 only)
IRI_retest_PD - Interpersonal Reactivity Index, Personal Distress subscale, administered by mail after experiment (wave 1 only)
IRI_retest_F - Interpersonal Reactivity Index, Fantasy subscale, administered by mail after experiment (wave 1 only)
Dagar.till.retest - Test-retest interval for scales administered by mail, in days
TAS.20 - Toronto Alexithymia Scale-20 total score
Difficulty.identifying.feelings - Toronto Alexithymia Scale-20 DIF subscale
Difficulty.describing.feelings - Toronto Alexithymia Scale-20 DDF subscale
Externally.oriented.thinking - Toronto Alexithymia Scale-20 EOT subscale
STAI.T - State-Trait Anxiety Inventory-Trait
STAI.S - State-Trait Anxiety Inventory-State
STAI.S.Scrambled - State-Trait Anxiety Inventory-State, administered at the end of the experiment with questions in scrambled order
PPI_1_C_R - Psychopathy Personality Inventory-Revised, Coldheartedness factor/subscale
PPI_1_SCI_R - Psychopathy Personality Inventory-Revised, Self-Centered Impulsiveness factor
PPI_1_FD_R - Psychopathy Personality Inventory-Revised, Fearless Dominance factor
PPI_1_IR - Psychopathy Personality Inventory-Revised, Inconsistent Responding subscale
RatedSympathy - Participants' ratings of how sympathetic the confederate was, on a scale 1-10
Age and educational background were not included in order to preserve anonymity.
2. Physiological recordings (files in EP folder)
These files contain recordings made using the Acqknowledge software and exported to text files. They have different numbers of columns depending on when in the experiment they were
Files that have 12 columns have the following data in each column:
Skin conductance, umho
Raw EMG of the major zygomatic muscle, mV
Raw EMG of the superciliary corrugator muscle, mV
Rating (channel not used, can be disregarded)
Average rectified EMG of the superciliary corrugator muscle, mV
Reference wave for shock stimulus
Reference wave for image stimulus onset, shock
Reference wave for image stimulus onset, anticipation to self high condition
Reference wave for image stimulus onset, anticipation to self low condition
Reference wave for image stimulus onset, anticipation to other high condition
Reference wave for image stimulus onset, anticipation to other low condition
Reference wave for null event
Files that have 13 columns have the following data in each column:
Time (minutes)
Skin conductance, umho
Raw EMG of the major zygomatic muscle, mV
Raw EMG of the superciliary corrugator muscle, mV
Rating (channel not used, can be disregarded)
Average rectified EMG of the superciliary corrugator muscle, mV
Reference wave for shock stimulus
Reference wave for image stimulus onset, shock
Reference wave for image stimulus onset, anticipation to self high condition
Reference wave for image stimulus onset, anticipation to self low condition
Reference wave for image stimulus onset, anticipation to other high condition
Reference wave for image stimulus onset, anticipation to other low condition
Reference wave for null event
Files that have 14 columns have the following data in each column:
Time (minutes)
Skin conductance, umho
Raw EMG of the major zygomatic muscle, mV
Raw EMG of the superciliary corrugator muscle, mV
Rating (channel not used, can be disregarded)
EKG (mV)
Average rectified EMG of the superciliary corrugator muscle, mV
Reference wave for shock stimulus
Reference wave for image stimulus onset, shock
Reference wave for image stimulus onset, anticipation to self high condition
Reference wave for image stimulus onset, anticipation to self low condition
Reference wave for image stimulus onset, anticipation to other high condition
Reference wave for image stimulus onset, anticipation to other low condition
Reference wave for null event
3. Ratings.csv
This file contains participants' rated unpleasantness and pain intensity to each event.
Subject - Unique participant ID
Condition - Shock to self or other
Stimulus - Shock of high or low intensity
Unpleasantness - Unpleasantness rating, VAS 0-100
Intensity - Pain intensity rating, VAS 0-100
4. SCR.csv
This file contains participants' skin conductance responses.
Subject - Unique participant ID
Condition - Shock to self or other
Stimulus - Shock of high or low intensity
SCR - Skin conductance response amplitude
5. Reaction_time_data.csv
This file contains participants' skin conductance responses.
Subject - Unique participant ID
Treatment - Oxazepam or placebo group
FirstOrSecondTest - First or second test
Wave - Wave 1 or 2
ResponseTime_ms - Reaction time in ms