Each file represents the EEG and looking data recorded from infants and their parents in one of two conditions. For example, ‘124_SL’ contains the data recorded from infant-parent dyad #124 during the ‘Solo Looking’ condition.  ‘124_JA’ contains the data recorded from the same dyad during the ‘Joint Attention’ condition. 

Exact descriptions of the participants and experimental procedures are giving in the attached manuscript, Wass et al., in press. 

Data is not available for all dyads, due to data loss either to: a) non-compliance during recording, to b) technical problems during recording or c) insufficiently good quality data recorded. 

The files contain synchronised analysed EEG data from infants and parents. Only data from two vertex electrodes, C3 and C4, averaged together, is given. Sections marked with NaNs were excluded during artefact rejection. 

Each row represents a separate 250ms epoch. 

The columns show:
Column A - time (in seconds) according to the infant camcorder
B - total power recorded from the infant EEG for that epoch in the 1-21Hz frequency bands
C - absolute theta power - infant power in the 3-6Hz frequency bands
D - relative theta power - infant power in the 3-6Hz frequency bands divided by power in the 1-21Hz band. 
E - relative alpha power - infant power in the 6-9Hz frequency bands divided by power in the 1-21Hz band.  
F - time (in seconds) according to the infant camcorder (again - this is just a synchronisation check)
G - coding is the infant either looking to the play object in that epoch (1) or not (0)? The exact criteria used for look duration coding are given in the attached Wass et al paper. 
H - coding - is the infant either looking to the play partner (the parent) in that epoch (1) or not (0)?
I - ignore this column
J - blank
K - time (in seconds) according to the mother camcorder
L - total power recorded from the mother EEG for that epoch in the 1-21Hz frequency bands
M - absolute theta power - mother power in the 3-6Hz frequency bands
N - relative theta power - mother power in the 3-6Hz frequency bands divided by power in the 1-21Hz band. 
O - relative alpha power - mother power in the 6-9Hz frequency bands divided by power in the 1-21Hz band.  
P - time (in seconds) according to the mother camcorder (again - this is just a synchronisation check)
Q - coding is the mother either looking to the play object in that epoch (1) or not (0)? The exact criteria used for look duration coding are given in the attached Wass et al paper. 
R - coding - is the mother either looking to the play partner (the infant) in that epoch (1) or not (0)?
S - ignore
T - Phase Locking Value for that epoch between in the infant EEG and the mother EEG in theta (3-6Hz)
U - Phase Locking Value for that epoch between in the infant EEG and the mother EEG in alpha (6-9Hz)
V - coding - are both infant and parent looking to the object at the same time?
W - coding - are both infant and parent looking to the play partner (i.e. infant looking at mother AND mother looking at infant)
 
If you would like raw, unprocessed copies of this data please contact s.v.wass@uel.ac.uk or vvec2@cam.ac.uk.