# Perception and EEG signals triggered by tonic warm and cool stimulation: data
[Associated article][1]
## "Intensity ratings" folder
○ ratings_data_14subj.mat contains (not normalized)
intensity_ratings (6,14) cell array containing the raw intensity ratings
(not normalized) for each condition (row) and subject
(column).
Each entry is a vector of intensity ratings along time.
Due to technical problems, subject 3 could not receive
the stimuli from the cool large-fixed condition and 5 other
recordings (2 for subject 3 and 3 for subject 11) were
interrupted a few cycles before the end of stimulation.
Removing these subjects does not change the results
presented in the paper (it only reduces effect sizes).
temperature_matrices (6,1) cell array containing a matrix
in each entry giving the temperature waveform
of each of the 6 conditions (with the time along the
rows and the 5 stimulator zones along the columns).
condition_names names of the six conditions, where
w = warm, c = cool, 2 or 5 = number of active zones at each time
fix = fixed and var = variable.
SR sampling frequency.
○ rating_peaks_14subj.mat contains (normalized to first peak)
peak_latencies (6,1) cell array with a (14,1) cell array in each entry
(i.e. for each condition) containing the latencies of
the rating peaks across cycles, computed with respect to
the latencies of maximal temperature change per cycle.
peak_amplitudes (6,1) cell array with a (14,1) cell array in each entry
(i.e. for each condition) containing the rating peaks
across cycles, normalized to the ratings of the first cycle.
condition_names names of the six conditions, where
w = warm, c = cool, 2 or 5 = number of active zones at each time
fix = fixed and var = variable.
## "EEG recordings" folder
○ EEG_data_15subj.mat contains
EEG_time_courses (15,4) cell array containing the EEG time courses
averaged across the epochs for each subject (row)
and condition (column).
Each entry is a (64,75000) matrix of EEG amplitudes
for each channel (row) and along time (column).
temperature_matrices (4,1) cell array containing a (75000,5) matrix
in each entry giving the temperature waveform
of each of the 4 conditions
(75000 time steps and 5 stimulator zones).
condition_names names of the four conditions, where
w = warm, c = cool, 2 or 5 = number of active zones at each time
fix = fixed and var = variable.
fs sampling frequency.
chanlocs channel locations.
○ EEG_data_15subj_xx_yyHz.mat
contains the same elements as EEG_data_15subj.mat,
but for the envelopes in the frequency band [xx, yy] Hz.
[1]: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0231698
